EP-300 Series Installation, Operation and Service Manual
Contents
1. Part No Description Quantity Box 1 of 2 02730103 EP 303 Pump Assembly 1 90713454 Pump Inlet Assembly 455 mm dia 1 90713451 Pump Scroll Assembly 529 mm dia 1 01312105 EP 300 Scroll Inlet Fastener Package 1 Box 2 of 2 02730106 EP 300 Accessory Package 6 1 90430600K Pressure Switch Kit 1 90430600 Pressure Switch 1 91417409 Silicone Hose 1 91220201 Barbed Fitting 1 91104001 Locknut 2 94118106 Screw 8 x 3 8 2 96211000 Lock Washer 10 2 93511706 Screw 10 32 x 3 8 2 92311800 Locknut 10 32 2 91412802 Pump Boot 6 x 8 2 91913703 Band Clamp 6 5 01397400 Bird Screen 6 1 01365000 Mounting Angle 6 01311701 EP 300 Accessory Package 1 T00680 Isolator Pad 4 93413912 Bolt 5 16 18 x 3 4 6 97213920 Bolt 5 16 18 x 1 1 4 4 95211600 Flat Washer 5 16 20 96411600 Lockwasher 5 16 10 92113900 Hex Nut 10 T0010 Screw 10 3 127202NA EP 300 Series Installation Operation and Service Manual 1 9 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL SECTION 5 PUMP INSTALLATION A WARNING Severe Injury Hazard Secure pump to tube Hang pump with materials with a minimum working load of 750 Ibs 340 kg Failure to follow these instructions can result in death injury or property damage AWARNING Cut Pinch Hazard Wear protective gear during installation operation and service Edges are sharp Failure to follow these instructions2. To plan location of supports To provide access to pump for servicing on all sides and for pump removal To provide the owner with a copy of this installa tion operation and service manual To never use pump or pump platform as support for ladder or other access equipment and never hang or suspend anything from pump or pump platform To safely and adequately install pump using materials with a minimal working load of 750 Ib 340 kg To ensure the pump is placed in an approved application SECTION 2 INSTALLER RESPONSIBILITY 2 1 Corrosive Chemicals A CAUTION Product Damage Hazard Do not use heater in area containing corrosive chemicals Refer to appropriate Material Safety Data Sheets MSDS Failure to follow these instructions can result in product damage Roberts Gordon LLC cannot be responsible for ensuring that all appropriate safety measures are undertaken prior to installation this is entirely the responsibility of the installer It is essential that the contractor the sub contractor or the owner identifies the presence of combustible materials corrosive chemicals or halogenated hydrocarbons anywhere in the premises Halogenated Hydrocarbons are a family of chemical com pounds characterized by the presence of halogen elements flu orine chlorine bromine etc These compounds are frequently used in refrigerants cleaning agents solvents etc If these compounds enter the air s
3. finger tighten Repeat for all 12 screw studs See Page 71 Figure 4 NOTE While tightening the nuts torque to 132 in Ib that secure the pump scroll to the pump frame periodically spin the impeller to be sure that adequate clearance is maintained between the impeller blades and the body of the pump scroll 5 1 3 Attaching the Inlet Plate Assembly From the scroll assembly side of the pump orient the inlet assembly so the threaded pipe coupling is on the top See partial end view on Page 11 Figure 4 Place inlet assembly onto the scroll assembly by fitting the inlet assembly onto the M8 screw studs FIGURE 4 Installation Configurations SECTION 5 PUMP INSTALLATION on the scroll assembly Be careful not to damage gasket Place M8 washers onto the M8 screw stud Thread the M8 hex nuts onto the M8 screw studs finger tighten Repeat for all 12 screw studs See Page 11 Figure 4 Go back and tighten all 24 M8 hex nuts torque to 132 in Ib with a wrench to completely secure pump scroll assembly to the pump frame and pump inlet assembly to the pump scroll assembly Side View Vertical Mounting Scroll Assembly Plate M8 Screw Fi M8 Hexnut Washer gt gd cles Description Part Number Pump Scroll 90713451 Hex Nut M8 24 92204502 Washer M8 x 16 OD x 1 6 95204502 Impeller 90713340 Inlet Assembly M8 Hexnut and Washer End View 5 2 Pump Impel
4. gal h Total Input Btu h 100 000 Btu h x condensate flow gal h Step 3 Choose the condensate neutralization tube Choose the condensate neutralization tube which is closest to and higher than the calculated gal h value the condensate neutralization tube which is closest to and higher than the calculated gal h value is P N 01327002 Calculated gal h Description Part Number Less than 2 Condensate Neutralization Tube 200 01327002 Less than 6 Condensate Neutralization Tube 600 01327003 Less than 10 Condensate Neutralization Tube 1000 01327004 Less than 20 Condensate Neutralization Tube 2000 01327005 NOTE Condensate neutralization tubes must be replaced yearly every 2000 operating hours or check condensate water pH level If it is below pH 6 replace tube To order replacement see the chart below Description Part Number Condensate Neutralization Tube 200 01327002 Condensate Neutralization Tube 600 01327003 Condensate Neutralization Tube 1000 01327004 Condensate Neutralization Tube 2000 01327005 Refill Condensate Neutralization Tube 600 01327007 Refill Condensate Neutralization Tube 1000 01327008 Refill Condensate Neutralization Tube 2000 01327009 Calculated gal h Description Part Number Less than 2 Condensate Neutralization Tube 200 01327002 Less than 6 Condensate Neutralization Tube 600 01327003 Less than 10 Condensate Neutralization Tu
5. vent 3 elbow Up To 50 15 m 8 20 cm vent 3 elbow 9 3 Vent Material Recomendations Cut Pinch Hazard Vent recommendations in order of preferred use Wear protective gear during installation 1 Porcelain coated tubing 4 10 cm O D P N operation and service 9141030D Edges are sharp 2 Heat treated aluminized tubing 4 10 cm O D Failure to follow these instructions can result P N 91409408 o in injury Heat treated aluminized tubing 6 15 cm O D P N E0009105 3 Single wall flue pipe minimum 26 ga Not suitable for modulating and condensing system designs 9 1 Venting This heater must be vented in accordance with the rules contained in this manual and with the following national codes and any state provincial or local codes which may apply 9 4 Horizontal Venting United States Refer to National Fuel Gas Code If using vent lengths greater than 20 6 m conden NFPA 54 ANSI Z223 1 latest revision sation will form in the vent pipe Insulation and addi tional sealing measures will be required Vent must exit building not less than 7 2 m above grade when located adjacent to public Canada Refer to Natural Gas and Propane Installation Code CSA B149 1 latest revision This section provides partial information about this walkways specification with regard to size and configuration for Vent must terminate at least 3 1 m above any venting requirements See Page 20 Figure 18 and
6. x 34 reducer not supplied CPVC between pump and condensate ge valve in accordance with local codes 36 0 9 m Minimum vertical drop between pump Condensate and condensate Neutralization flow valve assembly Tube Y Must be connected to a drain system in accordance with local codes and manufacturers instructions Condensate Valve Assembly 25 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL SECTION 10 SERVICING EEE ADANGER Electrical Shock Hazard Explosion Hazard Disconnect electric before service Heater and pump must be connected to a properly grounded electrical source Turn off gas supply to Allow heater and heater before service A WARNING Cut Pinch Hazard Wear protective gear during installation operation and service Burn Hazard pump to cool before service Tubing may still be hot Edges are sharp after operation Failure to follow these instructions can result in death electric shock injury or property damage A DANGER Severe Injury Hazard Install pump scroll and inlet assembly before operating high speed rotating impeller Keep hands fingers and clothing away from inlet and outlet Install and operate equipment according to installation manual Failure to follow these instructions can result in death or severe injury Disassembly and removal or replacement of any pump components must be done b
7. 8 1 91901300 Band Clamp 4 2 91913703 Band Clamp 6 3 01397400 Bird Screen 6 1 01365000 Mounting Angle 6 01311701 EP 300 Accessory Package 1 7100680 Isolator Pad 4 93413912 Bolt 5 16 18 x 3 4 6 97213920 Bolt 5 16 18 x 1 1 4 4 95211600 Flat Washer 5 16 20 96411600 Lockwasher 5 16 10 92113900 Hex Nut 10 T0010 Screw 10 3 127202NA EP 300 Series Installation Operation and Service Manual 1 6 of 33 SECTION 4 MAJOR COMPONENTS Table 2 EP 301 Pump Package 6 P N 02723016 Part No Description Quantity Box 1 of 2 02730101 EP 301 Pump Assembly 1 90713454 Pump Inlet Assembly 455 mm dia 1 90713451 Pump Scroll Assembly 529 mm dia 1 01312105 EP 300 Scroll Inlet Fastener Package 1 Box 2 of 2 02730106 EP 300 Accessory Package 6 1 90430600K Pressure Switch Kit 1 90430600 Pressure Switch 1 91417409 Silicone Hose 1 91220201 Barbed Fitting 1 91104001 Locknut 2 94118106 Screw 8 x 3 8 2 96211000 Lock Washer 10 2 93511706 Screw 10 32 x 3 8 2 92311800 Locknut 10 32 2 91412802 Pump Boot 6 x 8 2 91913703 Band Clamp 6 5 01397400 Bird Screen 6 1 01365000 Mounting Angle 6 01311701 EP 300 Accessory Package 1 T00680 Isolator Pad 4 93413912 Bolt 5 16 18 x 3 4 6 97213920 Bolt 5 16 18 x 1 1 4 4 95211600 Flat Washer 5 16 20 96411600 Lockwasher 5 16 10 92113900 Hex Nut 10 T0010 Screw 10 3 127202NA EP 300 Series Insta
8. forced air inlet located within 10 3 m Page 21 Figure 19 However to provide assurance of proper and safe operation it is the responsibility of the installer to make sure the installation is in strict accordance with all local and national codes Vent must terminate at least 4 1 2 m below 4 1 2 m horizontally from or 12 30 cm above any door window or gravity air inlet into building 19 of 33 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL Locate vent terminal at least 12 30 cm from Install vent terminal at a height sufficient to pre any opening through which vent gases could vent blockage by snow enter a building Protect building materials from degradation by Use only corrosion resistant materials for the dis flue gases charge line from the pump to the point of dis e Any portion of flue pipe passing through a com charge bustible wall must be dual insulated and an Vent terminal opening must extend beyond any approved thimble must be used combustible overhang FIGURE 18 Horizontal Venting Pitch single wall pipe downward away from pump 1 4 6 mm for Thimble every 10 3 NOTE See Page 29 Section 11 for common venting components and part numbers 18 46 cm Minimum 40 102 cm Maximum 10 3 m Maximum and 1 Elbow gt lt gt Description Part Number Bird Screen 6 15 cm 01397400 Pump Boot 6 15 cm 914
9. installed by an contractor qualified in the installation and service of gas fired heating equipment You cannot prove original purchase date and required annual maintenance history SECTION 13 THE ROBERTS GORDON EP 300 SERIES PUMP WARRANTY The data plate and or serial number are removed defaced modified or altered in any way The ownership of the ROBERTS GORDON EP 300 Series Pump is moved or transferred This warranty is non transferable Roberts Gordon LLC is not permitted to inspect the damaged equipment and or component parts READ YOUR INSTALLATION OPERATION AND SERVICE MANUAL If you have questions about your equipment contact your installing professional Should you need Replacement Parts or have additional questions call or write Roberts Gordon LLC 1250 William Street P O Box 44 Buffalo New York 14240 0044 Telephone 1 716 852 4400 Fax 1 716 852 0854 Toll Free 800 828 7450 www rg inc com www radiantheaters com www robertsgordon com www corayvac com Roberts Gordon LLC s liability and your exclusive remedy under this warranty or any implied warranty including the implied warranties of merchantability and fitness for a particular purpose is limited to providing replacement parts during the term of this warranty Some jurisdictions do not allow limitations on how long an implied warranty lasts so this limitation may not apply to you There are no rights warranties or conditions expressed or impli
10. to prevent condensate leakage Screw condensate trap tightly into drain cap to prevent leakage Condensate trap should be filled with water Pressure Switch Ensure that wiring is intact Check silicone hose for cracks Ensure secure connection between pressure switch and barbed fitting Safety Labels Product safety signs or labels should be replaced by the product user when they are no longer legible Please contact Roberts Gordon LLC or your ROBERTS GORDON independent distributor to obtain replacement signs or labels See Page 2 Figure 7 28 of 33 SECTION 11 REPLACEMENT PARTS AND ACCESSORIES SECTION 11 REPLACEMENT PARTS AND ACCESSORIES ADANGER A WARNING Electrical Shock Hazard Explosion Hazard Fire Hazard Carbon Monoxide Hazard Use only genuine ROBERTS GORDON replacement parts per this installation operation and service manual Failure to follow these instructions can result in death electric shock injury or property damage Motor Band Clamp r4 4 or 6 10 or 15 cm Adapter Pump Boot 4 to 6 4 or 6 10 t015 cm 10 or 15 cm for 4 10 cm Band Clamp ER 6 15 cm tailpipe only Pump Boot 6 15 cm 11 1 Replacement Parts Description Part Number Description Part Number Motor 2 HP 230 V 10 90605102 Isolator Pads T00680 Motor 2 HP 208 V 230 V 460 V 3 90605103 4 10 cm Pump Boot 91412800 Impeller Assembly 340 mm dia 90713340 6 15 cm P
11. 12802 Band Clamp 6 15 cm 91913703 Vent Terminal 6 15 cm 90502101 6 15 cm Bird Screen Included Single Wall Pipe Tube 6 15 cm 6 15 cm Band Clamp Approved Not required on non combustible ca Vent Terminal walls Tjernlund VH1 l 6 15 cm or Equivalent Not Included 9 5 Vertical Venting If using vent lengths greater than 20 6 m conden sation will form in the vent pipe Insulation and addi tional sealing measures will be required Length of flue pipe is equal to total of vertical and horizontal length 9 6 Venting Accessories NOTE 4 10 cm accessories may only be used on the inlet side of the EP 301 pump See Page 29 Section 11 for venting accessories 20 of 33 FIGURE 19 Vertical Venting SECTION 9 VENTING fa Vent Cap 2 61 cm Minimum Roof 6S C CG GC CC GGG WW Thimble Tee 6 15 cm Drain 6 15 cm met Drain Tube Vent Cap 6 15 cm 90502302 Drain Cap 6 15 cm 02718852 1 2 5 cm P V C to drain system in accordance o drain Pr Ir with local codes 20 5 1 cm for EP 300 9 7 Condensate Tee Assembly The condensate tee assembly is composed of a tee draincap and condensate trap If the system is designed in the condensing mode then the installation of a condensat
12. SY ROBERTS GORDON 300 series Installation Operation amp Service Manual A WARNING installer Please take the time to read and understand Improper installation adjustment alteration service these inswusti ns priorto env installation or maintenance can result in death injury or 1 t thi y property damage Read the Installation Operation nstaller must give a copy of this manual to the owner and Service Manual thoroughly before installing or Owner servicing this equipment 9 Keep this manual a safe place order to provide Installation must be done by a contractor qualified your serviceman with necessary information in the installation and service of gas fired heating equipment or your gas supplier Roberts Gordon LLC 1250 William Street P O Box 44 Buffalo New York 14240 0044 Telephone 1 716 852 4400 Fax 1 716 852 0854 Toll Free 800 828 7450 www rg inc com www corayvac com www radiantheaters com 2012 Roberts Gordon LLC www greenhouse heater com P N 127202NA Rev K 06 12 www robertsgordon com TABLE OF CONTENTS SECTION 1 Heating System Safety 1 12 2 EP 301 Controls Specifications 31 1 1 Manpower Requirements 1 12 3 EP 303 Controls Specifications 31 1 2 Safety Labels and Their Placement 1 12 4 General Dimension Spec
13. Side 4 CONNECT TO SYSTEM TUBING 4 10 cm S D Pump Boot 4 10 cm Band Clamp 10 4 x 6 Adapter Inlet Assembly Description Part Number Pump Boot 4 10 cm 91412800 Band Clamp 4 10 cm 91901300 Inlet Assembly 90713454 4x6 Adapter 02719903 FIGURE 7 Pump Inlet Side 6 Band Clamp CONNECT lt TO SYSTEM TUBING 6 15 cm d Pump Boot 6 15 cm Inlet Assembly Description Part Number Pump Boot 6 15 cm 91412802 Band Clamp 6 15 cm 91913703 Inlet Assembly 90713451 5 2 3 Discharge Connection to 6 15 cm Flue Mount the 6 15 cm pump boot to the pump outlet using the 6 15 cm band clamp provided See Page 13 Figure 8 FIGURE 8 Pump Discharge Side The minimum diameter outlet allowed is 6 15 cm Further reduction will reduce pump performance Pump Boot 6 15 cm Band Clamp 6 15 cm CONNECT lt _ TO FLUE 6 15 cm Description Part Number Pump Boot 6 15 cm 91412802 Band Clamp 6 15 cm 91913703 SECTION 5 PUMP INSTALLATION 13 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL SECTION 6 PRESSURE SWITCH MOUNTING AND WIRING 6 1 Pressure Switch Installation 6 1 1 Attaching Pressure Switch to Pump Inlet For connection to a pump locate the two pressure Apply silicone sealant 600 F to the threads of the switch moun
14. ate equipment according to installation manual Failure to follow these instructions can result in death or severe injury 4 of 33 SECTION 4 MAJOR COMPONENTS SECTION 4 MAJOR COMPONENTS FIGURE 2 Major Component Descriptions EP 303 Pump Assembly 02730301 Pump Boot 4 10 cm 91412800 Pump Inlet Assembly 90713454 Pump Boot 6 15 cm 91412802 4 to 6 10 cm x 15 cm Adapter 02719903 Mounting Angle 01365000 Pressure Switch 90430600K Band Clamp 4 10 cm 91901300 Band Clamp 6 15 cm 91913703 Bird Screen 6 15 cm 01397400 OOOOOOOOOOOOOOOOO 5 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL 4 1 Standard Parts List Table 1 EP 301 Pump Package 4 P N 02723014 Part No Description Quantity Box 1 of 2 02730101 EP 301 Pump Assembly 1 90713454 Pump Inlet Assembly 455 mm dia 1 90713451 Pump Scroll Assembly 529 mm dia 1 01312105 EP 300 Scroll Inlet Fastener Package 1 Box 2 of 2 02730104 EP 300 Accessory Package 4 1 02719903 4 to 6 Adapter 1 90430600K Pressure Switch Kit 1 90430600 Pressure Switch 1 91417409 Silicone Hose 1 91220201 Barbed Fitting 1 91104001 Locknut 2 94118106 Screw 8 x 3 8 2 96211000 Lock Washer 10 2 93511706 Screw 10 32 x 3 8 2 92311800 Locknut 10 32 2 91412800 Pump Boot 4 x 8 1 91412802 Pump Boot 6 x
15. be 1000 01327004 Less than 20 Condensate Neutralization Tube 2000 01327005 Example CORAYVAC system has a total input of 600 000 Btu h The radiant tube length and tailpipe are set up according to the RECOMMENDED specifications Step 1 Condensate flow gal h per 100 000 Btu h installed Select 0 3 from the Condensate flow chart Radiant Tube Tailpipe Length per Flow Unit Length average distance Minimum Recommended between burners unit Minimum N A 0 1 0 3 0 6 Recommended 0 1 0 3 0 6 0 8 Maximum 0 3 0 6 0 8 0 8 Step 2 Total condensate Multiply the total input Btu h 100 000 by the condensate flow gal h per 100 000 Btu h 600 000 100 000 x 0 3 1 8 gal h Step 3 Choose the condensate neutralization tube Choose the condensate neutralization tube which is closest to and higher than the calculated gal h value For this example the total condensate is 1 8 gal h 24 of 33 SECTION 9 VENTING FIGURE 24 Condensate Neutralization Tube Calculated gal h Description Part Number Wall Less than 2 Condensate Neutralization Tube 200 01327002 Less than 6 Condensate Neutralization Tube 600 01327003 Less than 10 Condensate Neutralization Tube 1000 01327004 Less than 20 Condensate Neutralization Tube 2000 01327005 1 NPT threaded hole Use 1
16. can result in injury 5 1 Pump Assembly Instructions 5 1 1 Determine Orientation of Pump Discharge To ensure your safety and comply with the terms of the warranty all units must be installed in accor dance with these instructions The pump must be installed in a location that it is readily accessible for servicing An arrow is affixed to the outside of the pump scroll to indicate the direction of rotation of the impeller The standard rotation of the impeller is in the counter clockwise direction Pump discharge orientation is viewed from the rear of the motor as shown in on Page 10 Figure 3 Note that the pump scroll outlet must always be positioned 10 of 33 at the bottom horizontal position FIGURE 3 Pump Discharge Orientation Bottom Right Horizontal Discharge Bottom Left Horizontal Discharge lt 5 1 2 Attaching Pump Scroll After determining the correct orientation of the pump scroll outlet attach the pump scroll to the pump frame as follows In Box 1 of 2 locate the EP 300 Scroll Inlet fas tener package containing hex nuts and washers Place scroll assembly over impeller and align M8 screw studs on the scroll assembly with the holes on the frame Place the scroll assembly onto the pump frame Be careful not to damage gasket From the motor side of the vertical mounting plate of the frame place an M8 washer onto the M8 screw stud Then thread the M8 hexnut onto the 8 screw stud
17. e tee assembly is required The condensate tee assembly must be installed on the inlet side of the pump assembly if there is horizontal venting of the pump See Page 22 Figure 20 A condensate drain on the discharge side is required if there is vertical venting of the pump or if there is a vertical rise in the discharge line away from the pump See Page 22 Figure 27 The condensate tee assembly in the discharge line can be eliminated if the discharge line is horizontal through the wall and pitched down at least 1 4 per 10 6 mm per 3 m This arrangement will permit drainage of condensate through the pump and out side via the horizontal pitched discharge line 21 of 33 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL FIGURE 20 Condensate Tee Assembly at Pump Inlet Description Part Number Tee 4 10 cm 01330203 Tee 6 15 cm 01330204 Drain Cap 4 10 cm 02718851 Drain Cap 6 15 cm 02718852 Condensate Valve Assembly 01327001 Br CRB System Tailpipe Tee Wall gt 0003000000000 SOS os 1 NPT threaded hole D 8 Use 1 34 reducer Not supplied Copper or ON galvanized pipe 5 between pump and condensate valve 3 4 Female Condensate Valve Assembly 36 9 m Minimum vertical drop between pump and condensate valve assembl
18. ed statutory or otherwise other than those contained in this warranty Roberts Gordon LLC shall in no event be responsible for incidental or consequential damages or incur liability for damages in excess of the amount paid by you for the ROBERTS GORDON EP 300 Series Pump Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages so this limitation or exclusion may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from jurisdiction to jurisdiction Roberts Gordon LLC shall not be responsible for failure to perform under the terms of this warranty if caused by circumstances out of its control including but not limited to war fire flood strike government or court orders acts of God terrorism unavailability of supplies parts or power No person is authorized to assume for Roberts Gordon LLC any other warranty obligation or liability LIMITATIONS ON AUTHORITY OF REPRESENTATIVES No representative of Roberts Gordon LLC other than an Executive Officer has authority to change or extend these provisions Changes or extensions shall be binding only if confirmed in writing by Roberts Gordon LLC s duly authorized Executive Officer 33 of 33
19. ening the four set screws in the cooling disc then remov ing the hex head bolt M8 x 1 x 50 and washer from the end of the motor shaft With an appro priate wheel puller remove the impeller 6 The motor can now be removed if necessary by removing the attachment hardware 7 Re assembly of motor impeller combination requires proper alignment Be certain of proper motor alignment and free rotation 8 The four set screws should be reinstalled with a drop of thread locking sealant and remain unseated during initial re assembly 9 Slide the impeller onto the motor shaft end Apply a drop of thread locking sealant to the threads of the hex head bolt Slide the washer onto the hex head bolt and thread the bolt into the shaft so that it bottoms on the end of the shaft and hub of the impeller Torque to 120 in Ibs 10 Seat the four set screws Torque to 140 in lbs 11 Re attach the scroll and tighten the twelve nuts SECTION 10 SERVICING INSTRUCTIONS 27 of 33 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL 10 3 Maintenance Checklist Installation Code and Annual Inspections All installation and service of ROBERTS GORDON equipment must be performed by a contractor qualified in the installation and service of equipment sold and supplied by Roberts Gordon LLC and conform to all requirements set forth in the ROBERTS GORDON manuals and all applicable governmental authorities pertaining to the installa
20. ension Specifications SECTION 12 SPECIFICATIONS 12 3 EP 303 Controls Specifications Motor starters are sold separately When using a System Control use Starter Package P N 10050010 With ROBERTS GORDON ULTRAVACTM use variable frequency drive P N VFD20230 sold sepa rately 25 19 32 65 cm 15 cm Inlet Outlet In 10 5 8 lt 8 5 64 20 5 An 27 om 1 3 4 4 4 cm 24 5 8 I 16 11 16 63 cm 41 5 cm 20 25 32 52 8 cm 12 5 Pump Specifications Model EP 301 EP 303 Phase 0 1 3 Voltage V 208 230 208 230 460 R P M 3450 3450 Motor Enclosure TEFC TEFC 31 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL 32 of 33 SECTION 13 THE ROBERTS GORDON EP 300 SERIES PUMP WARRANTY ROBERTS GORDON LLC WILL PAY FOR Within 36 months from date of purchase by buyer or 42 months from date of shipment by Roberts Gordon LLC whichever occurs first replacement parts will be provided free of charge for any part of the product which fails due to a manufacturing or material defect Roberts Gordon LLC will require the part in question to be returned to the factory Roberts Gordon LLC will at its sole discretion repair or replace after determining the nature of the defect and disposition of part in question ROBERTS GORDON Replacement Parts are warranted for a period of 12 months from da
21. ent Material Recomendations 19 9 4 Horizontal 19 9 5 Vertical 20 9 6 Venting Accessories 20 9 7 Condensate Tee Assembly 21 9 8 Condensate Trap and Condensate Tee 23 SECTION 10 Servicing Instructions 26 10 1 Pre Season Maintenance and Annual Inspection u nee 26 10 2 To Change the Motor and or the Impeller 26 10 3 Maintenance 28 SECTION 11 Replacement Parts and Accessories 29 11 1 Replacement 29 11 2 Accessories 30 SECTION 12 Specifications 31 12 1 Material 31 2012 Roberts Gordon LLC All rights reserved No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any means graphic electronic or mechanical including photocopying recording taping or information storage and retrieval systems without the written permission of Roberts Gordon LLC Printed in U S A TABLE OF FIGURES Figure 1 Label 2 Figure 2 Major Component Descripti
22. he condensate trap assembly on the pump if the one inch threaded hole is plugged This arrangement will permit drainage of condensate through the pump and outside via horizontal pitched discharge line The condensate trap assembly in the discharge line can be eliminated if the discharge line is horizontal through the wall and pitched down at least one inch Thimble if applicable per foot A condensate trap on the discharge side is required if there is a vertical rise in the discharge line 9 8 1 Condensate Neutralization Tube optional If a condensate neutralization tube is specified to be used with the heating system follow the steps below to choose the proper condensate neutralization tube See Page 25 Figure 24 23 of 33 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL Step 1 Condensate flow gal h per 100 000 Btu h installed You will need to know the tailpipe length per flow unit and the total input Btu h on the heating system Please refer to the following chart to determine the condensate flow gal h per 100 000 Btu h installed Radiant Tube Tailpipe Length per Flow Unit Length average distance Minimum Recommended hr between burners unit Minimum N A 0 1 0 3 0 6 Recommended 0 1 0 3 0 6 0 8 Maximum 0 3 0 6 0 8 0 8 Step 2 Total condensate Determine the total condensate gal h using the follow calculation Total condensate
23. hich may apply Always switch off the supply and disconnect before servicing 8 1 Impeller Rotation Direction Prior to operation of the pump in the heating system operation and proper rotation of the impeller must be verified See impeller rotation direction arrow label on the pump scroll for the correct rotation direction The motor must be wired for clockwise or counterclock wise rotation as shown on Page 17 Figure 15 and Page 18 Figure 17 IMPORTANT Improper rotation of the impeller will not produce the vacuum required for proper system operation 8 2 EP 301 Wiring The EP 301 motor is wired for 1 O 230 V 60 Hz operation When controlled by a system control use Contactor Package 28A P N 10050012 See Page 16 Figure 14 See ROBERTS GORDON System Control Manual P N 10091601 NA wiring details Wire the pressure switch per the heater Installation Operation and Service Manual or appropriate controller installation manual Do not directly connect the controller relay terminals to the pump motor 16 of 33 The power to the EP 301 pump is not supplied by the controller Power is supplied by a separate circuit and is switched by the controller via a contactor with a 120 V AC coil See Page 16 Figure 14 FIGURE 14 EP 301 Contactor Wiring Diagram EP 301 Contactor package Pump P N 10050011 P N 10050012 rated for the EP 301 pump motor The power supply for each pump must be separate from
24. ifications 31 1 3 California Proposition 65 1 12 5 Pump 31 SECTION 2 Installer Responsibility 3 SECTION 13 The ROBERTS GORDON EP 300 2 1 Corrosive 3 Series Pump Warranty 33 2 2 National Standards and Applicable Codes 3 SECTION 3 Unpacking the Pump 4 3 1 Open Shipping Cartons 4 SECTION 4 Major Components 5 4 1 Standard Parts 6 SECTION 5 Pump Installation 10 5 1 Pump Assembly Instructions 10 5 2 Pump Impeller Rotation 11 SECTION 6 Pressure Switch Mounting and jl 14 6 1 Pressure Switch Installation 14 SECTION 7 Pump Mounting Instructions 15 7 1 Mounting Platform 15 SECTION 8 Motor Wiring eeeessss 16 8 1 Impeller Rotation Direction 16 8 2 EP 301 16 8 3 303 Wiring eene 17 SECTION 9 19 9 1 Venting inei emn 19 9 2 Venting the Pump essen 19 9 3 V
25. ler Rotation The rotation of the impeller as viewed from behind the motor must be clockwise when the pump dis charge orientation is bottom left horizontal The rota tion of the impeller as viewed from behind the motor must be counterclockwise when the pump discharge orientation is bottom right horizontal An arrow label on the pump scroll indicates the direction of the impeller rotation To set the rotation direction See Page 17 Figure 15 and Page 18 Figure 17 after com pleting Section 5 11 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL FIGURE 5 Pump Impeller Rotation Counterclockwise Rotation Bottom Right Horizontal Discharge Position Arrow showing direction of rotation located on the scroll housing Clockwise Rotation Bottom Left Horizontal Discharge Position 5 2 1 Pump Inlet Adapter for 4 10 cm Tubing Apply a bead of silicone sealant 600 F to the 6 15 cm inside of the adapter 6 x 4 15 cm x 10 cm Mount the adapter to the inlet of the pump scroll using the 3 10 self drilling screws provided See Page 12 Figure 6 IMPORTANT To prevent leakage of condensate do not install screws at the 6 o clock position Mount the pump boot to the inlet adapter using the band clamp provided See Page 12 Figure 6 5 2 2 Pump Inlet for 6 15 cm Tubing Attach 6 15 cm pump boot to the inlet See Figure 7 then See Section 5 2 3 12 of 33 FIGURE 6 Pump Inlet
26. llation Operation and Service Manual 1 7 of 33 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL Table 3 EP 303 Pump Package 4 P N 02723034 Part No Description Quantity Box 1 of 2 02730103 EP 303 Pump Assembly 90713454 Pump Inlet Assembly 455 mm dia 90713451 Pump Scroll Assembly 529 mm dia 01312105 EP 300 Scroll Inlet Fastener Package Box 2 of 2 02730104 EP 300 Accessory Package 4 02719903 4 to 6 Adapter 90430600K Pressure Switch Kit 90430600 Pressure Switch 91417409 Silicone Hose 91220201 Barbed Fitting 91104001 Locknut 94118106 Screw 8 x 3 8 96211000 Lock Washer 10 93511706 Screw 10 32 x 3 8 92311800 Locknut 10 32 91412800 Pump Boot 4 x 8 91412802 Pump Boot 6 x 8 91901300 Band Clamp 4 91913703 Band Clamp 6 01397400 Bird Screen 6 01365000 Mounting Angle 01311701 EP 300 Accessory Package T00680 Isolator Pad 93413912 Bolt 5 16 18 x 3 4 97213920 Bolt 5 16 18 x 1 1 4 95211600 Flat Washer 5 16 20 96411600 Lockwasher 5 16 10 92113900 Hex Nut 10 T0010 Screw 10 3 127202NA EP 300 Series Installation Operation and Service Manual 1 8 of 33 Table 4 EP 303 Pump Package 6 P N 02723036 SECTION 4 MAJOR COMPONENTS
27. lve 23 Figure 23 Condensate Tee Discharge Side 23 Figure 24 Condensate Neutralization Tube 25 LIST OF TABLES Table 1 EP 301 Pump Package 4 P N 02723014 6 Table 2 EP 301 Pump Package 6 P N 027230196 7 Table 3 EP 303 Pump Package 4 P N 02723034 8 Table 4 EP 303 Pump Package 6 P N 02723036 9 LIST OF TABLES Table 1 EP 301 Pump Package 4 P N 02723014 Table 2 EP 301 Pump Package 6 P N 02723016 Table 3 EP 303 Pump Package 4 P N 02723034 Table 4 EP 303 Pump Package 6 P N 02723036 SECTION 1 HEATING SYSTEM SAFETY Your Safety is Important to Us This symbol is used throughout the manual to notify you of possi ble fire electrical or burn hazards Please pay special attention when reading and following the warn ings in these sections Installation service and annual inspection of heater and pump must be done by a contractor qualified in the installation and service of gas fired heating equipment Read this manual carefully before installation opera tion or service of this equipment This heating system is designed for heating nonresi dential indoor spaces Do not install in residential spaces These instructions the layout drawing local codes and ordinances and applicable standards that apply to electrical wiring venting etc must be thor oughly understood before proceeding with
28. nals to the pump motor pump must be separate from the controller supply 208 V 230 V eig 13 o e or 460 V 3 60 Hz eo or Individual supply for pump rated for total full load current See Page 31 Section 12 5 for details 17 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL FIGURE 17 Motor Wiring for EP 303 208 V 230 V 460 3 Y Pump 208 V 230V 3 Note Interchange any two line leads to 460V 3 reverse rotation 18 of 33 SECTION 9 VENTING SECTION 9 VENTING AWARNING 9 2 Venting the Pump The exhaust connection from the pump is 6 15 cm diameter Connect the 6 15 cm pump boot provided to the 6 15 cm flue pipe using the 6 15 cm band clamp provided Venting from the pump may discharge either hori PRO Hazard zontally or vertically Horizontal discharge is Pump must be vented to the outside preferred See Page 20 Figure 18 Vertical dis Heaters must be installed according to the charge must be arranged as shown on Page 21 installation manual Figure 19 Corrosion resistant pipe is required Both horizontal and vertical venting must be sup ported by suitable hangers Vent lengths are allowed as follows Failure to follow these instructions can result in death or injury VENT LENGTH VENT SIZE AWARNING Up To 10 3 m 6 15 cm vent 1 elbow Up To 25 8 m 7 18 cm
29. oad of 750 Ibs 340 kg Failure of the supports can result in death injury or property damage FIGURE 12 Wall Bracket Assembly SECTION 7 Pump MOUNTING INSTRUCTIONS 7 1 Mounting Platform The standard method of mounting the pump is on an outside wall and venting directly through the wall The pump may be mounted by using mounting angles as shown in Figure 12 and Figure 13 The two mounting angles form a mounting platform to which the pump will be attached Fix the mounting frame to the wall using anchors Select an anchor that will give equal to or greater than 2000 lbs ultimate pull out strength Angle 000g 00000000000 Description Part Number Mounting Angle 01365000 Hex Bolt 5 16 x 3 4 93413912 Flat Washer 95211600 Lockwasher 96411600 Hex Nut 92113900 Lockwasher Flat Washer Hex Nut Flat Washer Hex Head Bolt FIGURE 13 Mounting Platform Options 15 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL SECTION 8 MOTOR WIRING A WARNING Electrical Shock Hazard Disconnect electrical and gas before servicing This appliance must be connected to a properly grounded electrical source Failure to follow these instructions can result in death or electrical shock All wiring must comply with current wiring regulations and any local regulations w
30. ons 5 Figure 3 Pump Discharge Orientation 10 Figure 4 Installation Configurations 11 Figure 5 Pump Impeller Rotation 12 Figure 6 Pump Inlet Side 4 12 Figure 7 Pump Inlet Side 6 13 Figure 8 Pump Discharge Side 13 Figure 9 Pressure Switch Mounting Hole lOCatlOr ice te etre te et en 14 Figure 10 Mounted Pressure Switch 14 Figure 11 Wiring Pump Pressure Switch ONLY 14 Figure 12 Wall Bracket Assembly 15 Figure 13 Mounting Platform Options 15 Figure 14 EP 301 Contactor Wiring Diagram 16 Figure 15 Motor Wiring for EP 301 Pump Clockwise Impeller Rotation 17 Figure 16 EP 303 208 V 230 V or 460 V 3 Y Pump Starter Wiring Diagram 17 Figure 17 Motor Wiring for EP 303 208 V 230 V 460 V 18 Figure 18 Horizontal Venting 20 Figure 19 Vertical Venting 21 Figure 20 Condensate Tee Assembly at Pump Inlet 22 Figure 21 Condensate Drain for Vertical Venting 22 Figure 22 Condensate Check Va
31. rnia Proposition 65 require ments a warning label must be placed in a highly visible location on the outside of the equipment i e near equipment s serial plate See the heaters Installation Operation and Service Manual for label placement Avoid placing label on areas with extreme heat cold corrosive chemicals or other elements To order additional labels please contact Roberts Gor don LLC or your ROBERTS GORDON independent distributor 1 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL FIGURE 1 Label Placement lt ROBERTS GORDON Quality in Any Language Rating Plate Label SNELA ROBERTS GORDON Quality in Any Language Description Part Number Logo Label Severe Injury Label 91012100 Rating Plate Label 91010401 Logo Label 91017200 2 of 33 SECTION 2 INSTALLER RESPONSIBILITY The installer is responsible for the following To install the pump and electrical supplies in accordance with applicable specifications and codes Roberts Gordon recommends the installer contact a local building inspector or fire marshal for guidance To use the information given in a layout drawing and in the manual together with the cited codes and regulations to perform the installation To install the heater in accordance with the clearances to combustibles To furnish all needed materials not furnished as standard equipment
32. te of shipment from Roberts Gordon LLC or the remaining ROBERTS GORDON EP 300 Series Pump warranty ROBERTS GORDON LLC WILL NOT PAY FOR Service trips service calls and labor charges Shipment of replacement parts Claims where the total price of the goods have not been paid Damage due to Improper installation operation or maintenance Misuse abuse neglect or modification of the ROBERTS GORDON EP 300 Series Pump in any way Use of the ROBERTS GORDON EP 300 Series Pump for other than its intended purpose Incorrect gas or electrical supply accident fire floods acts of God war terrorism or other casualty Improper service use of replacement parts accessories not specified by Roberts Gordon Failure to install or maintain the ROBERTS GORDON EP 300 Series Pump as directed in the Installation Operation and Service Manual Relocation of the ROBERTS GORDON EP 300 Series Pump after initial installation Use of the ROBERTS GORDON EP 300 Series Pump in a corrosive atmosphere containing contaminants Use of the ROBERTS GORDON EP 300 Series Pump in the vicinity of a combustible or explosive material Any defect in the ROBERTS GORDON EP 300 Series Pump arising from a drawing design or specification supplied by or on behalf of the consumer Damage incurred during shipment Claim must be filed with carrier WARRANTY IS VOID IF The ROBERTS GORDON EP 300 Series Pump is not
33. the controller supply 230 V 19 60 2 120 V 10 60 Hz Individual supply for pump rated for total full load current See Page 31 Section 12 5 for details from control panel FIGURE 15 Motor Wiring for EP 301 Pump Clockwise Impeller Rotation Wire 4 to L2 Wires 2 3 and 8 Note Interchange wires 5 and 8 for counterclockwise rotation SECTION 8 MoTor WIRING 8 3 EP 303 Wiring The EP 303 motor can be wired for 3 208 V 230 V 460 V 60 Hz operation Do not directly connect the controller relay terminals to the pump motor When controlled by a system control use Contactor Package 17A P N 10050011 See Page 17 Figure 16 See ROBERTS GORDON System Control Manual P N 10091601NA wiring details Wire the pressure switch per the appropriate wiring dia gram in the Controller Installation Manual If using ROBERTS GORDON ULTRAVAC controls the power to the EP 303 pump is not supplied by the controller Power is supplied by a separate circuit and is switched by the controller via the Variable Frequency Drive VFD 208 230 V only See the ROBERTS GORDON ULTRAVAC Installation Manual P N 10081601NA for wiring details FIGURE 16 EP 303 208 V 230 V or 460 V 3 Y Pump Starter Wiring Diagram Motor Contactors P N 10050011 P N 10050012 The power supply for each Do not directly connect the controller relay termi
34. the instal lation Protective gear is to be worn during installation oper stion and service Thin sheet metal parts such as the various venting components have sharp edges To prevent injury the use of work gloves is recom mended Do not attempt to operate the pump until all steps of the installation have been accomplished This pump must be applied and operated under the general concepts of reasonable use and installed using best building practices This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowl edge unless they have been given supervision or instruction concerning use of the appliance by a per son responsible for their safety Children should be supervised to ensure that they do no play with the appliance For additional copies of the Installation Operation and Service Manual please contact Roberts Gordon LLC 1 1 Manpower Requirements To prevent personal injury and damage to the pump two persons will be required for installation SECTION 1 HEATING SYSTEM SAFETY 1 2 Safety Labels and Their Placement Product safety signs or labels should be replaced by the product user when they are no longer legible Please contact Roberts Gordon LLC or your ROB ERTS GORDON independent distributor to obtain replacement signs or labels See Page 2 Figure 7 1 3 California Proposition 65 In accordance with Califo
35. ting holes on the pump frame If replac pressure switch and then screw the pressure switch ing an old pressure switch you may need to drill two into the 1 8 NPT hole provided on the pump inlet holes in the pump frame 7 32 dia approximately See Page 11 Figure 4 Care must be taken to make 13 16 apart certain that the application of silicone does not plug FIGURE 9 Pressure Switch Mounting Hole the orifice hole of the pressure switch Without pump Location verification the system will not operate Using screws and locknuts included mount the switch to the pump frame Thread the barbed fitting into the threaded hole at the pump inlet Cut the sili cone tube to the appropriate length to eliminate the possibility of kinks and securely attach the hose to the pressure switch and the barbed fitting FIGURE 10 Mounted Pressure Switch Pressure Switch Mounting Holes located on both sides of pump frame Ga Barbed Fitting Silicone Hose FIGURE 11 Wiring Pump Pressure Switch ONLY Connect the wire leads provided to terminals 1 and 2 labeled C Common and NO Normally Open Refer Common Terminal to the pressure switch kit installation instructions or control panel installation instructions for connection to controls Ground Screw 14 of 33 SECTION 7 PUMP MOUNTING INSTRUCTIONS AWARNING Suspension Hazard Mount pump with materials with a minimum working l
36. tion service operation and labeling of the equipment To help facilitate optimum performance and safety Roberts Gordon LLC recommends that a qualified contractor conduct at a minimum annual inspections of your ROBERTS GORDON equipment and perform service where necessary using only replacement parts sold and supplies by Roberts Gordon LLC System Tubing and Vent Pipe Venting must be intact Using a flashlight look for obstructions cracks on the pipe gaps in the sealed areas or corrosion The area must be free of dirt and dust or blockage Remove any carbon deposits or scale using a wire brush Replace pipe if there are any holes due to corrosion Seal any gaps in venting to prevent condensate leakage Pump Scroll Impeller and Motor sary Compressed air or a vacuum cleaner may be used to clean dust and dirt Check for corrosion if any parts have corroded through replace as neces Ensure all M8 nuts are tight for proper seal Suspension Points Make sure the pump is hanging securely Look for signs of wear on the mounting angles wall mounting points or ceiling mounting points Pump Boot Inspect pump boot at pump inlet and outlet for cracking or deterioration Replace if cracks are found Ensure band clamps are tight at all connection points Condensate Trap Drain Cap Check connection of tee to drain cap and between tee and condensate trap Seal connections between tee and drain cap
37. ump Boot 91412802 4 10 cm Band Clamp 91901300 Mounting Angle 01365000 6 15 cm Band Clamp 91913703 Adapter 6 x 4 15 cm x 10 cm 02719903 Pressure Switch 90430600K Bird Screen with Clamp 01397400 Pump Scroll Assembly 90713451 Pump Inlet Assembly 90713454 11 2 Accessories Description Part Number Description Part Number Contactor Package for EP 301 10050009 Aluminized Tube adapter 6 dia x 4 dia 91418200 Starter Package for EP 303 10050010 6 Tube Hangar 91240010 4 Plain Coupling 01312700 4 Drain Cap 02718851 6 Plain Coupling 01312706 6 Drain Cap 02718852 4 Lined Coupling 01312701 Condensate Valve Assembly 01327001 29 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL Description Part Number 4 Damper Coupling 6 Damper Coupling 4 Aluminized Tee 6 Aluminized Tee 4 Coated Tee 4 Aluminized Cross 01331900 E0009356 01330203 01330204 0133022D 01330903 Description 6 Aluminized Cross 4 Coated Cross 4 Aluminized 90 Elbow 6 Aluminized 90 Elbow 4 Coated 90 Elbow Part Number 01330904 0133092D 01335801 T0100320 0133580D 30 of 33 SECTION 12 SPECIFICATIONS 12 1 Material Specifications 12 1 1 Pump Frame Inlet Scroll and Impeller 3 mm welded steel construction 12 1 2 Pump Weight 170 lbs 78 kg 12 2 EP 301 Controls Specifications Motor controls and contactors are sold separately Use contactor package 12 4 General Dim
38. upply of the burner the life span of the heater components will be greatly reduced An outside air supply must be provided to the burners whenever the presence of these compounds is suspected Warranty will be invalid if the heater is exposed to halogenated hydrocarbons 2 2 National Standards and Applicable Codes All Appliances must be installed in accordance with the latest revision of the applicable standards and national codes This refers also to the electric gas and venting installation Note Additional standards for installations in Public Garages Aircraft Hangars etc may be applicable 3 of 33 EP 300 SERIES PUMP INSTALLATION OPERATION AND SERVICE MANUAL SECTION 3 UNPACKING THE PUMP 3 1 Open Shipping Cartons AWARNING Cut Pinch Hazard Wear protective gear during installation operation and service Edges are sharp Failure to follow these instructions can result in injury Open cartons and remove packing inserts Carefully remove pump components from the cartons Lift assembly by gripping metal pump frame Two people are required weight 135 lbs 61 kg This pump has been tested prior to packing The impeller was dynamically balanced before assembly and requires care in handling to avoid damage A DANGER 6 Severe Injury Hazard Install pump scroll and inlet assembly before operating high speed rotating impeller Keep hands fingers and clothing away from inlet and outlet Install and oper
39. y Y Must be connected to a drain system in accordance with local codes FIGURE 21 Condensate Drain for Vertical Venting Roof Tee 6 15 cm Flue 6 15 cm Minimum Y 1 2 5 cm P V C to drain syatem in accordance ll with local codes Drain Cap 05995590600 Pump 6 15 cm Discharge Description Part Number Tee 6 15 cm 01330204 Drain Cap 6 15 cm 02718852 22 of 33 UT 20 b 1cm for EP 300 FIGURE 22 Condensate Check Valve SECTION 9 VENTING Part Number 01327001 Description Condensate Valve Assembly 1 NPT threaded hole Use 1 x 34 reducer not supplied CPVC between pump and condensate valve in accordance with local codes 3 4 female Condensate Valve Assembly 4 100 mm Minimum Flexible Boot 36 0 9 m Minimum vertical drop between pump and condensate valve assembly Y 711 Must be connected y to a drain system in accordance with local codes 1 2 5 P V C to drain system in accordance with local codes 9 8 Condensate Trap and Condensate Tee The condensate trap assembly optional P N 01327001 should be installed on the inlet side of the pump assembly See Page 23 Figure 22 It is possible to eliminate t
40. y a service con tractor or electrician qualified in the installation and service of gas fired heating equipment Overtorquing can result in a failure of components Failure to follow these instructions can compromise pump operation and void warranty 10 1 Pre Season Maintenance and Annual Inspection To ensure your safety and years of trouble free oper 26 of 33 ation of the pump service and annual inspections must be done by a contractor qualified in the installa tion and service of gas fired heating equipment Disconnect electric and gas supplies before perform ing service or maintenance Before every heating season a contractor qualified in the installation and service of gas fired heating equipment must perform a thorough safety inspec tion of the pump For safety and best performance the electrical vent ing Suspensions and overall pump condition are some of the areas requiring inspection Please see Page 28 Section 10 3 for suggested items to inspect 10 2 To Change the Motor and or the Impeller 1 Disconnect electrical power before servicing 2 Remove the pump boots from the inlet and out let of the scroll assembly disconnecting the pump from tailpipe and vent pipe 3 To remove the motor or impeller the scroll must be opened Remove the twelve nuts on the motor side of the pump frame 4 Remove the scroll assembly and inlet assembly from the frame as one piece 5 The impeller can be removed by loos
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