A.O. Smith HHPT-80 Technical Documents
Contents
1. Ducting can be connected to the inlet outlet or both the inlet and outlet requires both duct adaptors though the total length of duct must not exceed 10 feet For example when redirecting inlet and outlet air a maximum of 5 feet of inlet duct and 5 feet of outlet duct is allowed Variations such as 3 7 feet 7 3 feet are also permitted as long as the total duct length does not exceed 10 feet Installation Considerations The compressor unit on the water heater is disabled when the temperature of the air flowing to the inlet is lower than 45 F 7 2 C or higher than 109 F 42 8 C Air expelled from the outlet will be 7 F 4 C to 9 F 5 C cooler than the inlet air These operational parameters must be considered when deter mining if a location to duct air from to will be suitable IMPORTANT NOTE If the compressor unit is disabled for long periods of time due to inlet air temperature being too hot or too cold the potential energy savings a heat pump water heater is able to provide may be significantly reduced Air Inlet e Outdoor air temperatures will often be lower than 45 F 7 2 C in many regions during fall and winter months Attic temperature will often exceed 109 F 42 8 C in many regions during spring and summer months For units installed in conditioned spaces ducting outdoor air to the air inlet of the unit may place additional load on space heating and cooling equipment unless the air outlet2. Phillips screwdriver wire cutters scissors A WARNING Supplies needed 8 insulated flex duct duct clamp or strap e Before removing any access appropriate duct termination and duct tape panels or servicing the water heater make sure the electrical Important Use only factory authorized replacement parts If supply to the water heater is you lack the necessary skills to properly perform the instal turned OFF lation you should not proceed but get help from a qualified service technician e Failure to do this could result in death serious bodily injury or property damage Prior to installing the Duct Adaptor 1 Press the power button on the User Interface Module UIM to place the water heater in Standby Mode Figure 1 Note Power to the board is still present at this time User Interface Module 2 Remove all power to the unit at the breaker fuse panel prior to removing any panels Installation of the Duct Adaptor 1 If installing the Inlet Duct Adaptor remove the screws from the left louvered access panel of the unit If installing the Outlet Duct Adaptor remove the screws from the right lou Gp sii Gp vered access panel Figure 2 EFFICIENCY HYBRID ELECTRIC vacamon NOTE These Adaptors are not interchangeable 2 Using the eight 8 screws removed earlier attach the new Duct Adaptor panel to the top shroud of the unit The new 07 Duct Adaptor panel should be oriented wit
3. Ducting Kit Installation Instruction for Hybrid Electric Heat Pump Water Heaters Introduction Heat is absorbed from air entering the inlet left side of the compressor unit on top of the water heater and transferred to the water inside the storage tank Cooler dehumidified air exiting the outlet right side of the compressor unit is a normal byproduct of operation In standard installations using ambient air a minimum installed space of 750 cubic feet is required as a source of heat Duct adaptors can be used to redirect inlet and or outlet air from or to other locations to permit installation in confined spaces improve performance and maintain comfort in occupied areas of the home See the instruction manual that is shipped with the water heater for further instructions on using ducting kits for installation in confined spaces of less than 750 cubic feet Installation Limitations There are two duct adaptors one connects to the inlet side of the top shroud and one to the outlet side The two cannot be interchanged Ensure the correct adaptor s is ordered prior to installation Installation of the duct adaptors requires field supplied 8 inch flexible duct that can be obtained from a local HVAC supply store or home center Use of smaller diameter ducting is not permitted Air can be drawn from or expelled to the outdoors an attic space or to another room inside the home The maximum length of flexible duct allowed is 10 feet
4. h the louvered I portion of the panel located at the bottom of the panel to A ensure that the panel lines up with the existing holes Fig HEAT PUMP DN ure 3 Installation of the Ductwork 1 After the desired length of duct has been determined maxi on ee a milll mum 10 feet carefully cut completely around and through the duct insulation with a pair of scissors 2 Using a pair of wire cutters cut the wire inside the core duct Fold the insulation jacket back away from the core duct Figure 4 3 Slide at least 1 of the core duct over the ducting adaptor lip and seal with at least two 2 wraps of duct tape Addition ally secure the core duct with a band clamp or duct strap placed over the ducting adaptor and tape Figure 5 4 Slide insulation back over the duct core and the lip of the Power Button n Green inlet duct adaptor Use duct tape to secure the insulation to Standby Red the inlet duct assembly Figure 6 5 Add support to the duct work as necessary or as required by local codes Special attention must be given to prevent large droops in the duct work which could allow moisture to pool 6 The appropriate duct termination shall be added to the termination end of the duct This termination shall prevent any debris or rodents from entering the duct work and shall Screws 8 minimally restrict the airflow through the ducting In addi tion the termination shall be designed to preven
5. is also ducted to an alternate location Air being drawn from an alternate location inside the home may cause a negative pressure condition inside that area As aresult cold or hot air from outdoors may be drawn into the structure and place additional load on the space heat ing and cooling equipment Air Outlet e The air outlet from a unit installed in a garage or any area where solvents or other chemicals that emit potentially harmful fumes are stored or automobiles are located must never be ducted to any other space inside the building structure This would include all occupied and unoccupied spaces such as attics or basements Potentially harmful fumes and vapors from solvents and cleaners or automo bile exhaust gases could be introduced into living spaces Cold air blowing from the outlet into an alternate location inside the home may cause cooling discomfort and be objectionable Cold air blowing from the outlet into an alternate location inside the home may place additional load on space heat ing equipment during fall and winter months Ducting outlet air only to an alternate location may cause a negative air pressure in the installed space As a result cold or hot air from outdoors may be drawn into the structure and place additional load on the space heating and cooling equipment 323471 001 Kit contains 1 Assembled Inlet Duct Adaptor 323498 000 or 1 Assembled Outlet Duct Adaptor 323497 000 Tools required 2
6. t rain from entering into the duct work if terminated to the outside Restoring Operation Left 1 Restore power to the water heater at the breaker fuse Inlet Panel panel Press the power button on the UIM Figure 1 2 Follow the Operating Your Water Heater section found in the Installation Instructions and Use and Care Guide for restarting your heat pump water heater 3 Check the UIM for any errors and correct accordingly Screws 8 Page 2 q Figure 5 Ducting Adaptor Duct Core Clamp Duct Tape Core Duct Wire Cutters Duct Insulation Duct Insulation Page 3
Download Pdf Manuals
Related Search