Canon 3 Camera Accessories User Manual
Contents
1. National Electrical Code U S A Wire size must be no 16 AWG American Wire Gage 1 5 mm minimum See Fig 4 for field wiring 30HX UNITS Remove the screws holding the right side access panel to the unit control box Remove the right side access panel and store in a safe area Route wires through field supplied conduit and attach the conduit to the unit control box using a suitable conduit fit ting and one of the available in knockout openings At tach the other end of the conduit to the solenoid valve using a suitable fitting Repeat for the other circuit 30GX UNITS Install the accessory junction box included with this kit in the position shown on the 30GX chiller in Fig 3 Route the waterproof conduit included with this kit between the accessory junction box and the factory installed junction box See Fig 3 and 4 Route field supplied conduits from the solenoid valves to the accessory junction box ALL UNITS Using good wiring practice connect a white wire from the solenoid valve on circuit A to a white wire from the solenoid valve on circuit B Connect both wires to the white wire in the factory installed junction box 30GX or unit wiring harness labelled MLC A amp B 30HXA HXC Connect a pink wire from the solenoid valve on circuit A to the pink wire in the factory installed junction box 30GX or unit wiring harness labelled MLC A 30HXA HXC Connect a gray wire from the solenoid valve on cir2. bodies during brazing to prevent dam age to the valves from heat IMPORTANT When installing solenoid valve make sure that flow direction arrow on valve body points towards the cooler The minimum load control will not function correctly if this valve is installed backwards CONNECT PIPING Check the ends of the tubes where they will be inserted into the Swagelok fittings To avoid leaks tube ends must be round and free of burrs nicks and grooves Insert tube ends into fittings as far as they will go When tube bottoms out tighten the compression nut finger tight while holding the fitting body Use backup wrench to hold fitting body and tighten compression nut another 1 4 turns INSTALL SWAGELOK FITTING HERE IMPORTANT Do NOT overtighten the fittings Over tightening the fittings can deform the tube ends and cause leaks 30GX UNITS ONLY Using good brazing practice braze the in minimum load tubing to the copper nipple on the discharge line minimum load port between the condenser coil and oil separator See Fig 1 and 3 Step 3 Dehydrate and Recharge Circuit When piping has been completed leak test the assem bly If one of the Swagelok fittings leaks slowly tighten the compression nut until the leak stops If this does not fix the leak the connection must be reinstalled using a new ferrule and backup ring in the fitting Contact your Carrier repre sentative for assistance in locating these
3. equipment When working on air conditioning equipment observe pre cautions in the literature and on tags stickers and labels at tached to the equipment IMPORTANT When removing refrigerant use an approved refrigerant recovery device Do not vent re frigerant into the atmosphere INTRODUCTION The minimum load control accessory allows 30HX and 30GX chillers to have their capacities decreased below the standard fully unloaded condition The accessory provides more precise control of leaving fluid temperature during light load conditions The 30GX and 30HX chillers have a dual circuit design Each minimum load control accessory package contains the items required for both circuits Because of an automatic lead lag feature on the chillers the accessory should be installed on both circuits INSTALLATION Step 1 Examine Package Contents Pack age includes solenoid valves ball valves Swagelok con nectors and instructions The kit for 30GX units also con tains a junction box junction box cover and conduit Examine each item If any part is damaged or missing file a claim immediately with the shipper See Table for accessory pack age contents and field supplied material Table 1 Accessory Package Contents and Field Supplied Material ACCESSORY PACKAGE COMPONENTS Solenoid Valve Ball Valve Swagelok Connector Junction Box Junction Box Cover Watertight Conduit ACCESSORY PART NUMBER a A E as
4. 30GX080 176 30HX076 271 Minimum Load Control Accessory 50 60 Hz Installation Instructions Part Nos 30HX 900 008 30GX 900 004 wa 60 Hz 115 v Control Part Nos 30HX 900 009 30GX 900 005 50 or 60 Hz 230 v Control CONTENTS Follow all safety codes Wear safety glasses and work gloves Page Use care in handling equipment SAFETY CONSIDERATIONS 1 A WARNING INTRODUCTION 2222222 22 1 Be sure power to equipment is shut off before perform INSTALLATION 0 eee ee eee 1 6 ing maintenance or service Step 1 Examine Package Contents 1 Step 2 Install Piping 2 REMOVE MINIMUM LOAD PORT PLUGS AND INSTALL FITTINGS INSTALL PIPING INSTALL BALL AND SOLENOID VALVES CONNECT PIPING Step 3 Dehydrate and Recharge Circuit 3 Step 4 Install Control Wiring 4 30HX UNITS 30GX UNITS ALL UNITS Step 5 Configure Unit for Minimum Load Control oo o oo 6 Step 6 Test Minimum Load Relay Oulpuls 2 oe th voto ade 6 Step 7 Adjust Setting of Minimum Load Ball Valve 0 0 0 ccc cee ee 6 SAFETY CONSIDERATIONS Installing starting up and servicing air conditioning equip ment can be hazardous due to system pressures electrical components and equipment location Only trained qualified installers and service technicians should install start up and service this
5. ER PASSWORD 5 Press Pb IE fre 6 The HSIO 2 again displays the following MIN LOAD VALVE SELECT DISABLE 7 Press pe The display changes to MIN LOAD VALVE SELECT ENABLE The chiller is now configured for minimum load valve control Step 6 Test Minimum Load Relay Outputs After the accessory components are installed and the unit is recharged and reconfigured test the operation of the relay and solenoid valve using the Quick Test software function Test Circuit A as follows the LOCAL OFF switch must be in the OFF position 1 Press Jf on the HSIO 2 keypad 2 Press the down arrow until the display reads MIN LOAD VALVE A RELAY IS OFF 3 Press foe 4 The display may read as follows If not skip to Step 7 PASSWORD PROTECTED FUNCTION ENTER PASSWORD 5 Press DIBIBlb En 6 The HSIO 2 again displays the following MIN LOAD VALVE A RELAY IS OFF 7 Press to energize the relay The display reads MIN LOAD VALVE A RELAY IS ON An audible click will be heard Verify that the solenoid valve for Circuit A is energized 8 Press o to turn off the minimum load valve relay for Circuit A To check the operation of the solenoid valve on Circuit B follow the same procedure as the preceding but enter enter 2 in Step 1 instead of Fes The display screens will be for Circuit B instead of A After testing is complete recheck all electrical connec tions for pro
6. HX38ZZ001 30GX 900 005 2 EF23JX231 2 EP71BA201 2 DC09CA307 HX30FZ001 HX30FZ001 HX38ZZ001 99CD2121AC028 99CD2121AC028 FIELD SUPPLIED MATERIAL REQUIRED PARTS Ordered Separately s in OD Copper Tubing Wiring Conduit Thread Sealant Electrical Supplies Field Supplied Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 563 056 Book 2 PC 903 Tab 5c Printed in U S A Form 30GX HX 2SI Pg 1 1 97 Replaces New Step 2 Install Piping A WARNING Shut off all power to the unit then lock out and safety tag all disconnects before proceeding with installation A WARNING Remove refrigerant charge from circuits using an ap proved refrigerant recovery device before proceeding with installation NOTE The units have 2 circuits Perform all of the follow ing piping installation procedures on both A and B circuits REMOVE MINIMUM LOAD PORT PLUGS AND IN STALL FITTINGS Plugs must be removed from these ports and replaced with Swagelok fittings Note that plugs were factory installed with Loctite refrigerant compatible sealant Fittings should be installed with similar sealant on threads 30GX Cut plug end off of minimum load port braze nipple on discharge line located between oil separator and con denser Remove plug from minimum load port on cooler shell See Fig 1 Using t
7. cuit B to the gray wire in the factory installed junction box 30GX or unit wiring harness labelled MLC B 30HXA HXC Figure 4 shows the correct wiring for the minimum load control and the location of the wiring connection points on the chiller CONDUIT SUPPLIED WITH ACCESSORY KIT JUNCTION BOX SUPPLIED WITH ACCESSORY KIT FACTORY INSTALLED JUNCTION BOX FIELD SUPPLIED FIELD SUPPLIED CONDUIT B CONDUIT A WIRE NUT 30GX080 176 FIELD SUPPLIED CONDUIT B GRA ION FIELD SUPPLIED 182 CONDUITA WHT GRA TO RELAY BOARD NO 2 T3 D TO RELAY BOARD a TO TB4 2 NO 2 T1 WIRE NUT WIRES SUPPLIED IN HARNESS 30HX076 271 LEGEND MLC Minimum Load Control TB Terminal Block NOTE See Fig 3 for locations of junction boxes on unit Fig 4 Minimum Load Control Wiring Step 5 Configure Unit for Minimum Load Con trol Once the piping installation and wiring installation are complete the chiller must be configured for minimum load control operation This may be done using the unit key pad HSIO 2 Set the LOCAL OFF switch in the OFF position Press 2 Jer on the keypad 2 Press the down arrow until the display reads MIN LOAD VALVE SELECT DISABLE 3 To enable the minimum load valve feature press 4 The display may read as follows If not skip to Step 7 PASSWORD PROTECTED FUNCTION ENT
8. een cooler entering and leaving fluid temperatures when the minimum load control is ener gized must be at least half of the temperature difference when the minimum load control is deenergized For ex ample if the difference between the cooler entering and leaving water temperature is 3 F with the valve deen ergized then the difference between cooler entering and leaving water temperature must be at least 1 5 F with the valve energized Once the outputs have been tested and the ball valve ad justed the installation is complete Copyright 1997 Carrier Corporation Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 2 PC 903 Catalog No 563 056 Printed in U S A Form 30GX HX 2SI Pg 8 1 97 Replaces New Tab 5c
9. hread sealant install Swagelok fitting in minimum load port on cooler Port on nipple in discharge line is reserved for a brazed connection 30HX Remove plugs from minimum load ports on the cooler shell and the condenser shell 30HXC or oil sepa rator GOHXA See Fig 2 Using thread sealant install Swagelok fittings in minimum load ports INSTALL PIPING On 30GX units install field supplied Ys in OD copper tubing between the Swagelok fitting on the cooler shell and the brazed nipple on the discharge line On 30HX units install field supplied in OD copper tub ing between the fittings on the cooler shell and condenser 30HXC or oil separator 30HXA Do not tighten fittings or braze tubing yet N Lf REMOVE PLUG AND TI INSTALL SWAGELOK FITTING HERE CIRCUITA T REMOVE PLUG AND INSTALL SWAGELOK FITTING HERE CIRCUIT B FIELD INSTALLED PIPING CUT PLUG END OFF OF BRAZE NIPPLE TOP VIEW Fig 1 Installing Fittings 30GX Typical INSTALL BALLAND SOLENOID VALVES Using good piping practice braze ball valve and solenoid valve into s in minimum load piping Fig 2 shows a typical 30HX installation and Fig 3 shows a typical 30GX installation in cluding valve locations and orientation Ensure that ball valve is fully open and that both the ball and solenoid valve are protected from excess heat during brazing process Wrap wet cloths around valve
10. parts After leak testing evacuate dehydrate and recharge the circuit using an approved refrigerant recovery device Cor rect type and amount of refrigerant are listed on unit name plate and in base unit documentation INSTALL SWAGELOK BALL VALVE B FITTING HERE SOLENOID VALVE B BALL VALVE A SOLENOID VALVE A SIBI um FO WIDE AF THF hl e NH j ES SWAGELOK FITTING SHOWN INSTALLED a Ei cba acm in F Bee l recs ex 4L SWAGELOK FITTING SHOWN INSTALLED Fig 2 Installing Fittings and Valves 30HX Typical MINIMUM LOAD CONTROL PORT ACCESSORY WATERTIGHT f CONDUIT i u CIRCUITA 080 136 NL J CIRCUIT B ee 150 176 PR L FACTORY INSTALLED JUNCTION BOX n A E MINIMUM LOAD WY a NEN SWAGELOK CONTROL PORT AUT a 11 1 iura 5 El RCHIT B gt CIRCUIT A SS HL g ae TS Lp NH FA Tem Hu H SD SAMEN E ATAN AA NA O SOLENOID VALVE A 36 80 1 k SOLENOID VALVE B SOLENOID VALVE B 080 136 150 176 SOLENOID VALVE A 150 176 CZ ACCESSORY JUNCTION BOX BALL VALVE Fig 3 Installing Valves 30GX Step 4 Install Control Wiring A WARNING Be sure all power to the unit is off before proceeding Lock out and safety tag all disconnects Wires between field installed components and unit control box must be enclosed in field supplied conduit Follow all local codes and NEC
11. per location and tightness For 30HX units re place and secure the access panels for the unit control box For 30GX units secure the junction box covers to the junc tion boxes Step 7 Adjust Setting of Minimum Load Ball Valve Before the installation is complete the mini mum load ball valve must be adjusted to suit the application Calibrate one circuit at a time as follows 1 Adjust the ball valve so that it is approximately half open 2 Operate the chiller in Manual Control mode with one cir cuit operating and all compressor loaders deenergized NOTE Operation of the chiller in Manual Control mode is described in the Controls Start Up Operation and Trouble shooting Guide that is included with the 30GX HX Ecologic chillers 3 Record the cooler AT the difference between cooler en tering fluid temperature and cooler leaving fluid tempera ture at this fully unloaded condition 4 Use the Manual Control feature to enable the minimum load valve for the circuit that is operating 5 Observe and record the cooler AT with the minimum load valve energized 6 Adjust the minimum load ball valve until the cooler tem perature difference reading from Step 5 is equal to half of the temperature difference reading from Step 3 7 Open the ball valve to decrease the temperature differ ence or close the ball valve to increase the temperature difference AT When the valve is adjusted correctly the difference betw
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