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Allied Air Enterprises 4HP16LT - page 1
Save these instructions for future reference 506468-01 Page 1 Risk of electrical shock. Disconnect all remote power supplies before installing or servicing any portion of the system. Failure to disconnect power supplies can result in property damage, personal injury , or death. W ARNING Installation and servicing of air conditioning equipment can b ...
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Allied Air Enterprises 4HP16LT - page 2
Page 2 Issue 1004 506 468- 01 INST ALLA TION on the carrier ’s freight bill. T ake special care to examine the unit inside the carton if the carton is damaged. Any concealed damage discovered should be reported to the last carrier immediately , preferably in writing, and should include a request for inspection by the carrier’s agent. If any dam ...
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Allied Air Enterprises 4HP16LT - page 3
506 468 -01 Issue 1004 Page 3 NOTE: Elevation of the unit may be accomplished by constructing a frame using suitable materials. If a support frame is constructed, it must not block drain holes in unit base. • When installed in areas where low ambient tempera- tures exist, locate unit so winter prevailing winds do not blow directly into outdoor co ...
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Allied Air Enterprises 4HP16LT - page 4
506 468 -01 Page 4 Issue 1004 this sesction as well as the section that follows entitled Flushing Existing Line Set and Indoor Coil. If this unit is being matched with an approved line set or indoor coil which was previously charged with R-22 refrigerand, the line set and coil must be flushed prior to installation. If the unit is being used with an ...
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Allied Air Enterprises 4HP16LT - page 5
506 468 -01 Issue 1004 Page 5 Out side Unit Placement and Inst allation Figure 4 Polyol ester (POE) oils used with R410A refrigerant absorb moisture very quickly . It is very important that the refrigerant system be kept closed as much as possible. DO NOT remove line set caps or service valve stub caps until ready to make connections. W ARNING Inst ...
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Allied Air Enterprises 4HP16LT - page 6
Page 6 Issue 1 0 04 506 468 -01 Figure 6 Refrigerant Line Set s: T ransition from V ertical to Horizont al Anchored Heavy Nylon Wire Tie W all Stud Metal Slee v e V apor Line Wrapped in Armaflex – Liquid Line W all Stud A utomotiv e Muffler-T ype Hanger Strap Liquid Line to V apor Line Metal Slee v e V apor Line Wrapped in Armaflex – Liquid Lin ...
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Allied Air Enterprises 4HP16LT - page 7
506 468 -01 Issue 1 0 04 Page 7 Figure 7 Refrigerant Line Set s: Installing V ertical Runs (new construction shown) Outside W all W ood Block Between Studs IMPOR T ANT: Refrigerant lines must not contact wall. V apor Line Liquid Line Wire Tie Inside W all Strap Slee v e Wire Tie Wire Tie Strap W ood Block Slee v e V apor Line Wr apped with Armaflex ...
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Allied Air Enterprises 4HP16LT - page 8
Page 8 Issue 1 0 04 506 468 -01 If the existing outdoor unit is equipped with manual shutoff valves AND new R22 refrigerant will be used to flush the system: S tart the existing R22 refrigerant system in cooling mode and close the liquid line valve. Pump all the existing R22 refrigerant back into the outdoor unit. (It may be necessary to bypass the ...
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Allied Air Enterprises 4HP16LT - page 9
removed during the first flush. After each system flush, allow the recovery machine to pull a vacuum on the system at the end of the procedure. 9. Close the valve on the inverted R22 cylinder and the gauge set valves. Pump the remaining refrigeraant out of the recovery machine and turn the machine off. 10. Use nitrogen to break the vacuum on the re ...
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Allied Air Enterprises 4HP16LT - page 10
Page 10 Issue 1 0 04 506 468 -01 The ball valve is equipped with a service port with a factory-installed Schrader valve. A service port cap protects the Schrader valve from cont amination and serves as the primary seal. Leak T esting After the line set has been connected to the indoor and outdoor unit s, the line set connections and indoor unit mus ...
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Allied Air Enterprises 4HP16LT - page 11
506 468 -01 Issue 1 0 04 P age 11 to protect the manifold gauge set from damage caused by high pressure.) 2. With both manifold valves closed, connect the cylin- der of R410A refrigerant. Open the valve on the R410A cylinder (vapor only). 3. Open the high pressure side of the manifold to allow R410A into the line set and indoor unit. Weigh in a tra ...
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Allied Air Enterprises 4HP16LT - page 12
ST ART -UP 1. Rotate fan to check for frozen bearings or binding. 2. Inspect all factory and field-installed wiring for loose connections. 3. After evacuation is complete, open liquid line and suction line service valves to release refrigerant charge (contained in outdoor unit) into system. 4. Replace the stem caps and secure finger tight, then tig ...
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Allied Air Enterprises 4HP16LT - page 13
506 468 -01 Issue 1 0 04 Pag e 13 Cooling Cycle Use gauge ports on suction line valve and liquid line valve for evacuating refrigerant lines and indoor coil. Use suction gauge port to measure suction pressure during charging. Figure 12 OUTDOOR COIL DEFROST THERMOST A T EXP ANSION/CHECK V AL VE BIFLOW FIL TER / DRIER TO R410A DR UM LOW PRESSURE HIGH ...
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Allied Air Enterprises 4HP16LT - page 14
5. Compare the subcooling value with those shown in T able 6. If subcooling is greater than shown, recover some refrigerant. If subcooling is less than shown, add some refrigerant. 506468-01 Page 14 T able 5 R410A T emperature/Pressure Chart Temp. E F Pressure Psig Temp. E F Pressure Psig Tem p. E F Pressure Psi g 32 100.8 74 214.0 116 396.0 33 102 ...
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Allied Air Enterprises 4HP16LT - page 15
506468-01 Page 15 Issue 1004 T able 7 due to differences in inst allations. Significant differences could mean that the system is not properly charged or that a problem exist s with some component in the system. Pressures higher than those listed indicate that the system is overcharged. Pressures lower than those listed indicate that the system is ...
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Allied Air Enterprises 4HP16LT - page 16
5. Subtract the outdoor ambient temperature from the liquid line temperture to determine the approach temperature. 506468-01 Page 16 Check Charge Using Normal Operating Pressures Use T able 7 to perform maintenance checks. T able 7 is not a procedure for charging the system. Minor variations in these pressures may be due to differences in inst alla ...
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Allied Air Enterprises 4HP16LT - page 17
OPERA TION Outdoor unit and indoor blower cycle on demand from the room thermostat. When the thermostat blower switch is moved to the ON position, the indoor blower operates continuously . Filter Drier The unit is equipped with a large capacity bi-flow filter which keeps the system clean and dry . If replacement is necessary , replace with one of s ...
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Allied Air Enterprises 4HP16LT - page 18
DEFROST BOARD PRESSURE SWITCH CONNECTIONS The unit’s automatic reset pressure switches (LO PS - S87 and HI PS - S4) are factory-wired into the defrost board on the LO-PS and HI-PS terminals, respectively . (OPTIONAL) Low Pressure Switch (LO-PS) — When the low pressure switch trips, the defrost board will cycle off the compressor , and the strik ...
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Allied Air Enterprises 4HP16LT - page 19
Defrost T emperature T ermination Shunt (Jumper) Pins —The defrost board selections are: 50, 70, 90, and 100°F (10, 21, 32 and 38°C). The shunt termination pin is factory set at 50°F (10°C). If the temperature shunt is not installed, the default termination temperature is 90°F (32°C). DELA Y MODE The defrost board has a field-selectable fun ...
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Allied Air Enterprises 4HP16LT - page 20
506468-01 Page 20 Issue 1004 ...
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Allied Air Enterprises 4HP16LT - page 21
506468-01 Page 21 Issue 1004 Defrost Control Board Diagnostic LEDs ...
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Allied Air Enterprises 4HP16LT - page 22
5 06 468 -01 Issue 1 0 04 P age 22 System Diagnostic Module 4HP16L T units cont ain a diagnostic module for trouble- shooting heat pump system failures. By monitoring and analyzing data from the compressor and thermostat demand, the module can accurately detect the cause of electrical and system related failure without any sensors. If a system prob ...
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Allied Air Enterprises 4HP16LT - page 23
Page 2 3 Issue 1 0 04 506 468 -01 Flash Codes (cont.) D E L s u t a t S n o i t p i r c s e D t l u a F n o i t a m r o f n I g n i t o o h s e l b u o r T T R E L A ) w o l l e Y ( h s a l F 3 e d o C g n i l c y C t r o h S s i r o s s e r p m o C g n i n n u r y l f e i r b y l n o t n e t t i m r e t n i s i l a n g i s d n a m e d t a t s o m ...
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Allied Air Enterprises 4HP16LT - page 24
5 06 468 -01 Issue 1 0 04 Page 2 4 T able 12 Miswired Module T roubleshooting Thermostat Demand Wiring The diagnostic module requires a thermostat demand signal to operate properly . The thermostat demand signal input, labeled Y on the module, should always be con- nected to the compressor contactor coil so that when the coil is energized, the dema ...
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Allied Air Enterprises 4HP16LT - page 25
Page 2 5 Issue 1 0 04 506 468 -01 MAINTENANCE Before performing maintenance operations on system, turn the electric power to unit OFF at disconnect switch(es). Unit may have multiple power supplies. Electrical shock could cause personal injury or death. W ARNING Before the start of each heating and cooling season, the following service checks shoul ...
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Allied Air Enterprises 4HP16LT - page 26
5 06 468 -01 Issue 1 0 04 Page 2 6 HOMEOWNER INFORMA TION In order to ensure peak performance, your system must be properly maintained. Clogged filters and blocked airflow prevent your unit from operating at its most ef ficient level. T urn all electric power to unit OFF at discon- nect switch(es) before performing any mainte- nance operations on s ...
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Allied Air Enterprises 4HP16LT - page 27
Page 2 7 Issue 1 0 04 506 468 -01 adjustment; turning the unit off and back on before pressures equalize puts stress on unit compressor . Fan Switch In AUT O or INT (intermittent) mode, the blower operates only when the thermostat calls for heating or cooling. This mode is generally preferred when humidity control is a priority . The ON or CONT mod ...
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Allied Air Enterprises 4HP16LT - page 28
5 06 468 -01 Issue 1 0 04 Page 2 8 St art-Up and Performance Checklist Job Name _______________________________ Job No. ________________ Date ______________ Job Location _____________________________ City ___________________ S tate ______________ Installer _________________________________ City ___________________ S tate ______________ Unit Model N ...
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Allied Air Enterprises 4HP16LT - page 29
506468-01 Page 29 Issue 1004 Single St age Wire Diagram ...
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Allied Air Enterprises 4HP16LT - page 30
506468-01 Page 30 Issue 1004 T wo St age Wire Diagram ...
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