Thermo-pride Air Handlers ECM Blower 13/14 SEER (AH2) User Manual

MAC-202 ECN 5320-MA 130307 13 & 14 SEER AIR HANDLER INSTALLATION & SERVICE MANUAL MODELS: AH2436AE1, AH4260AE1, AH2436BE1, AH4260BE1

8 INSTALLATION OF THE HOT WATER COIL: 1. Remove top door of air handler. 2. Slide hot water coil's side hanger brackets into coil channel

9 Figure G NOTE: Drain lines must be pitched no less than 1/4" per foot away from the air handler. BLOWER AIR ADJUSTMENT The ECM blower

10 BLOWER COOLING SPEEDS Refer Table C1 for setting switches 4, 5 & 6 for the A/C sizing. BLOWER HEATING SPEEDS WITH HYDRONIC C

11 HYDRONIC COIL MODEL HC1-B AH2436*E1 Temperature & Heat Values at 140, 160 & 1800F and 3,

12 HYDRONIC COIL MODEL HC2-A AH4260*E1 Temperature & Heat Values at 140, 160 & 180°F an

13 BLOWER TIME DELAY In cases where the yellow wires are used to start and stop the hydronic pump, SW2 may be used to delay when the blower is cycl

14 DUCT SIZES FOR HOMES Velocity Approximately 800 Feet Per Minute THE INDOOR EVAPORATOR COIL 1. EVAPORATOR COIL is a finned coil through which a

15 2. LIQUID LINE is a single small tube connecting the outlet of the A/C condenser to the expansion valve inlet on the A/C evaporator coil. TUBIN

16 TUBING INSTALLATION The compressor oil is constantly pumped through the refrigerant lines in normal operation of an air conditioning system. To

17 NOTE: Multiple suction line traps are recommended for longer or multiple suction lines. See Figure J. An inverted trap should be installed on the

TABLE OF CONTENTS SECTION BEGINNING PAGE SAFETY SECTION 1 KNOCKDOWN OF AIR HANDLER

18 HOW TO MEASURE LIQUID SUB-COOLING (NOTE: A good electronic thermometer and accurate liquid pressure gauge with a check valve in the Schraeder fi

19 A liquid sub-cooling of about 10oF leaving the condenser is good over a wide range of operating conditions for a system with a TXV in the evapor

20 Max fuse size for AH2436BE1 w\ EH104A 30A EH108A 45A Max fuse size for AH4260BE1 w\ EH208A 50A EH212A 70A EH216A 85A The foll

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22 UA ADAPTER CABINET The UA adapter cabinet is designed to be used in conjunction with the AH AIR HANDLER to allow a free standing (vertical disc

23 ECM TROUBLE SHOOTING DIAGNOSTC FEATURES The control board is equipped with 4 green Input Status LEDs and 1 red Board Status LED. These are inte

24 • Stays at high CFM • “R” missing/not connected at motor • Is fan in delay mode? – wait until delay time complete • Perform motor/control rep

25 Comfort Check • Check proper airflow settings • Low static pressure for lowest noise • Set low continuous-fan CFM • T’stat in bad location?

26 TROUBLESHOOTING CHARTS CONFIRM IF EITHER BLOWER WHEEL IS RUBBING AGAINST HOUSING OR MOTOR SHAFT IS SPINNING FREELY, REPAIR OR REPLACE AS NECESS

27 BLOWER Off-Delay Active? Sequence of Operation BURNER On 1. A/C Off 2. COOL mode Off 3.BLOWER Off-Delay Started 4. Status LED Off BLOWER = LOW B

1 SAFETY SECTION This page contains various warnings and cautions found throughout this Service and Installation Manual. Please read and comply wi

28 Sequence of Operation Glossary Inputs: W- Switched 24vac indicating a Heat call from the thermostat. Y - Switched 24vac indicating a Cool cal

29 REPLACEMENT PARTS

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2 AIR HANDLER Each air handler is shipped with an evaporator coil preinstalled. The AH2436A(B)E1 is shipped with a 13U2436AB14 evaporator coil for

3 9. Remove screws that secure the blower pan to the side & rear casings. 10. Push the front edges of the side casings slightly apart and remov

4 REASSEMBLY OF AH4260 To reassemble the air handler, reverse steps above starting with number 7. SETTING UP THE A-COIL FOR AIR CONDITIONING T

5 Figure C 11. Make appropriate liquid and suction line connections to coil and braze connections. NOTE: A wet rag makes an excellent he

6 For counterflow orientations: Figure D To convert AH2436 to counterflow: 1. Remove front A-coil access panel 2. Remove front a-coil drain p

7 Figure E To convert AH4260 to counterflow: 1. Remove the blower access door and front a-coil access panel. 2. Remove front tie panel (four s