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Service Facts
Air Handler - Convertible
Model: *AM7A0C36H31SA
IMPORTANT --- This document contains a wiring diagram and ser-
vice information. This is customer property and is to remain with
this unit. Please return to service information pack upon completion
of work.
For use with BAYEV series heaters ONLY
WARNING:
PROdUCT SPECIFICATIONS
MOdEL
RATEd VOLTS/PH/Hz.
RATINGS 1
INdOOR COIL — Type
Rows — F.P.I.
Face Area (sq. ft.)
Tube Size (in.)
Refrigerant Control
Drain Conn. Size (in.) 2
dUCT CONNECTIONS
INdOOR FAN — Type
Diameter-Width (In.)
No. Used
Drive - No. Speeds
CFM vs. in. w.g.
No. Motors — H.P.
Motor Speed RPM
Volts/Ph/Hz
F.L. Amps
FILTER
Filter Furnished?
Type Recommended
No.-Size-Thickness
REFRIGERANT
Ref. Line Connections
Coupling or Conn. Size — in. Gas
Coupling or Conn. Size — in. Liq.
dIMENSIONS
Crated (In.)
Uncrated
WEIGHT
Shipping (Lbs.) / Net (Lbs.)
* May be "A" or "T"
1 These Air Handlers are AHRI. certified with various Split System Air Conditioners
and Heat Pumps (AHRI STANDARD 210/240). Refer to the Split System Outdoor
Unit Product Data Guides for performance data.
2 3/4" Male Plastic Pipe (Ref.: ASTM 1785-76)
NOTICE: Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice.
© 2011 Trane
HAzARdOUS VOLTAGE - dISCONNECT POWER BEFORE SERVICING
*AM7A0C36H31SA
208-230/1/60
See O.D. Specifications
Plate Fin
3 - 14
5.50
3/8
EEV
3/4 NPT
See Outline Drawing
Centrifugal
11 X 10
1
Direct - Variable
See Fan Performance Table
1 - 1/2
Variable ECM
208-230/1/60
3.0
No
Throwaway
1 - 22 X 20 - 1 in.
R-410A
Brazed
7/8
3/8
H x D x W
57.25 x 23.5 x 25.25
56.9 x 21.75 x 23.5
157/146
AM7A0C36H31-SF-1A
!
SAFETY HAzARd!
This information is intended for use
by individuals possessing adequate backgrounds of electrical and
mechanical experience. Any attempt to repair a central air condition-
ing product may result in personal injury and/or property damage.
The manufacture or seller cannot be responsible for the interpreta-
tion of this information, nor can it assume any liability in connection
with its use.
!
LIVE ELECTRICAL COMPONENTS!
lation, testing, servicing, and troubleshooting of this product, it may
be necessary to work with live electrical components. Failure to fol-
low all electrical safety precautions when exposed to live electrical
components could result in death or serious injury.
!
PRESSURIzEd REFRIGERANT!
OIL AND REFRIGERANT UNDER HIGH PRESSURE. RECOVER
REFRIGERANT TO RELIEVE PRESSURE BEFORE OPENING THE
SYSTEM.
DO NOT USE NON-APPROVED REFRIGERANTS OR REFRIGERANT
SUBSTITUTES OR REFRIGERANT ADDITIVES.
Note: This unit is certified to UL 1995.
The interior cabinet wall meets the following:
- UL94-5VA Flame Class Listed
- UL723 Steiner Tunnel Listed for 25/50 Flame/
Smoke
- UL746C Listed for Exposure to Ultraviolet Light,
Water Exposure and Immersion
WARNING
WARNING
During instal-
WARNING
SYSTEM CONTAINS

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Summary of Contents for Trane AM7A0C36H31SA

  • Page 1 Service Facts AM7A0C36H31-SF-1A Air Handler - Convertible Model: *AM7A0C36H31SA IMPORTANT --- This document contains a wiring diagram and ser- vice information. This is customer property and is to remain with this unit. Please return to service information pack upon completion of work.
  • Page 2 AM7A0C36H31-SF-1A...
  • Page 3 SEQUENCE OF OPERATION FOR *AM7A0C36H31SA A7 Sequence of Operation R-G contacts close on comfort control sending 24VAC to the G terminal of the AFC. Abbreviations The AFC micro-processor sends a command to the • AFC – Airflow Control serial communicating blower motor to run at 1st stage •...
  • Page 4: Electric Heat

    The EVC will receive input from the two temperature sen- The AFC micro-processor sends a command to the serial sors and start to control 1st stage superheat. communicating blower motor to run and close the blower interlock relay. The blower motor will now run at the W1 R-Y2 contacts close on the comfort control sending electric heat cfm.
  • Page 5: Fault Reporting

    Unit Test Button Unit Test Mode will exit if any demand is given to the unit. To enter Unit Test Mode: TRANE U.S. INC. PART NO. LABEL 1. Shut System Switch on comfort control to Off 2. Power cycle unit power, wait 5 seconds...
  • Page 6: Control Layout

    Control Layout TRANE U.S. INC. S1 dip Switch S2 dip Switch BAR CODE Airflow Control (AFC) OUTDOOR TRANE U.S. INC. PART NO. LABEL Wire Ties Capacity (Tons) AC (System) 2 (Stages) 2 (Compressor) INDOOR R NET 1 BAR CODE CFM/Ton...
  • Page 7 Set the S1-1 and S1-2 dip switches for the OD multiplier (tonnage) per the chart. OUTDOOR OUTDOOR INDOOR MODEL S1‐1 S1‐2 OD MULTIPLIER Capacity (Tons) AC (System) *AM7A0C36H31SA 2 (Stages) 2 (Compressor) INDOOR * May be "A" or "T" R NET 1 NOTE: The OD multiplier in conjuction with the CFM/TON can  R NET 2 CFM/Ton be used to adjust total airflow for your application.  Example: ...
  • Page 8 HEATING  AC (System) CFM/TON CFM/TON INDOOR MODEL S2‐1 S2‐2 2 (Stages) 2 (Compressor) INDOOR *AM7A0C36H31SA R NET 1 R NET 2 CFM/Ton * May be "A" or "T" Cool Off Delay Torque +12V • Set the S2-3 and S2-4 dip switches for the Cool Airflow Control (AFC) Off Delay.
  • Page 9 AIRFLOW PERFORMANCE *AM7A0C36 WITH WET COIL, NO FILTER OUTDOOR COOLING HEATING EXTERNAL STATIC PRESSURE EXTERNAL STATIC PRESSURE Airflow Airflow MULTIPLIER AIRFLOW AIRFLOW Power Power (TONS) SETTING SETTING CFM/ton Watts CFM/ton Watts CFM/ton Watts CFM/ton Watts 2 tons CFM/ton Watts CFM/ton Watts CFM/ton Watts...
  • Page 10: Blower Housing

    Heater Attribute Data *AM7A0C36H31SA 240 Volt 208 Volt No. of Capacity Heater Minimum Maximum Capacity Heater Minimum Maximum Heater Model No. Circuits Amps per Circuit Overload Amps per Circuit Overload Circuit Ampacity Protection Circuit Ampacity Protection BTUH BTUH No Heater 3.0**...
  • Page 11 Air Handler Control Panel 1 2 3 1 2 3 AM7A0C36H31-SF-1A...
  • Page 12 AFC STATUS LEdS TRANE U.S. INC. AFC STATUS LED Power up and during last 4  fault history sequence ON SOLID BAR CODE Stand‐by or idle 1 Flash CFM demand ‐ 1 flash per 100  Multiple Flash STATUS UNIT Yo Jumper DH Jumper STATUS STATUS UNIT UNIT R101 FAULT FAULT FAULT R100 AFC FAULT COdES Fault LED Description No Fault Solid On Internal control failure...
  • Page 13 EVC STATUS COdES FAULT FAULT R100 EVC STATUS LED (Non Heat Pump Systems) Flash Cool mode / No active call STATUS Active call for 1st stage cooling Active call for 2nd stage cooling UNIT NOTE: Single stage OD systems will report 2nd stage flash codes STATUS EVC STATUS LED (Heat Pump Systems) FAULT...
  • Page 14 EHC STATUS LEdS EHC STATUS LED Flash 1 heater relay energized 2 heater relays energized 3 heater relays energized 4 heater relays energized 5 heater relays energized NOTE: Standby mode STATUS LED will flash 1 time per second NOTE: On a call for heat, STATUS LED will flash per the table above every 4 seconds EHC FAULT COdES EHC Fault...
  • Page 15 EEV TEST PROCEdURES Vapor Line Sensor (EVAP GAS) Saturation Sensor (EVAP SAT) Electronic Expansion Valve Test Note: Close Valve and Open Valve Tests are active in any mode of operation Test Pins: OPEN, CLOSE, TEST (See J4 on EVC Board) Close Valve Test - Touch CLOSE pin to TEST pin.
  • Page 16 THERMAL RESISTANCE ANd VOLTAGE TABLE THERMISTOR Volts DC at plug J3 Volts DC at plug J3 TEMP TEMP TEMP RESISTANCE THERMISTOR TEMP F EVAP SAT - Brown to Brown EVAP SAT - Brown to Brown RESISTANCE (OHMS) EVAP GAS - Black to Black EVAP GAS - Black to Black (OHMS) -6.7...
  • Page 17 Sensor Check Verify connections for sensors are plugged in and connected properly Start Here Turn system switch on comfort control Measure VDC at J3 connector on EVC. Wait 10 minutes Measure return air temperature to OFF and fan to ON position (See EVC table for J3 location) Verify resistance per Does voltage(s) measured correspond...
  • Page 18 HIGH SUPERHEAT Superheat above 30F at OD unit Start Here Verify that OD Verify line set is Is subcooling at the Perform condenser coils properly sized for outdoor unit temperature are clean application between 8-12F? sensor check Add refrigerant until subcooling Is liquid line temperature Verify line set size reaches ~10F...
  • Page 19 LOW SUPERHEAT Superheat below 3F at OD unit Start Here Verify field wiring Is filter, coil, Is indoor blower is correct. See Clean or replace and blower running? CTM motor trouble as needed wheel clean? shooting Perform sensor check Perform “CLOSE VALVE”...
  • Page 20 01/11 Trane 6200 Troup Highway Tyler, TX 75707 www.trane.com The manufacturer has a policy of continuous product and product data improvement, and it reserves the right For more information contact to change design and specifications without notice. your local dealer (distributor)

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