Service and Parts Manual (2016, 2017, 2018, 2014, 2015, 2013, 2012)
Table Of Contents
- INTRODUCTION
- IMPORTANT SAFETY INFORMATION
- PERSONAL INJURY OR DEATH HAZARDS
- Operation of Equipment in During Construction
- Equipment Identification
- Model and Serial Number Location
- Model and Serial Number information is found on the Manufacturer’s DATA TAG, located on the front or top.
- Model Number Reference Guide
- SERIAL NUMBER REFERENCE GUIDE
- Chassis Specifications
- Small Chassis Dimensions
- Large Chassis Dimensions
- Electrical Data
- Electrical Requirements
- Electrical Ratings Table
- Supply Air Flow and Data
- ELECTRONIC CONTROL BOARD FEATURES
- Electronic Sequence of Operation
- Interface Connector Definitions
- Remote Wall Thermostat
- Remote Wall Thermostat Location
- Desk Control
- Auxiliary Fan Control
- Unit Heat Control Operation - Heat Pump With Electric Heat
- Refrigeration Sequence Of Operation
- Remove The Chassis
- Servicing / Chassis Quick Changeouts
- To Remove the Chassis from the Closet:
- Refrigerant Charging
- Undercharged Refrigerant Systems
- Overcharged Refrigerant Systems
- Restricted Refrigerant System
- Sealed System Method of Charging/ Repairs
- Checking External Static Pressure
- Explanation of charts
- Indoor Airflow Data
- Ductwork Preparation
- Fresh Air Door
- Checking Approximate Airflow
- Electric Heat Strips
- COMPONENT TESTING
- Hermetic Components Check
- Reversing Valve Description And Operation
- Testing The Reversing Valve Solenoid Coil
- Checking The Reversing Valve
- Touch Test Chart : To Service Reversing Valves
- Compressor Checks
- Compressor Replacement -Special Procedure in Case of Compressor Burnout
- Fan Motor
- Capacitors
- Heating Element and Limit Switch
- Drain Pan Valve
- Thermistor Resistence Values (This Table Applies to All Thermistors)
- Testing the Diagnostic Service Module
- Testing the Electronic Control Board
- ELECTRONIC CONTROL BOARD COMPONENTS IDENTIFICATION AND TESTING
- Error Codes and Alarm Status
- Electrical Troubleshooting Chart - Cooling
- 9K Btu, 12K Btu, & 18K Btu
- 24K Btu
- Electrical Troubleshooting Chart - Heat Pump
- Troubleshooting Chart - Cooling
- 9-18K VEA 208/230V
- 9-18K VHA 208/230V
- 9-18K VHA 265V
- 24K VEA 208/230V 2.5/3.4/5.0
- 24K VEA 208/230V 7.5/10.0
- 24K VHA 208/230V 2.5/3.4/5.0
- 24K VHA 208/230V 7.5/10
- 24K VHA 265V 2.5/3.4/5.0
- 24K VHA 265V 7.5/10.0
- VEA9K, VHA9K, VEA12K, VHA12K, VEA18K Figure 901
- AVAILABLE ACCESSORIES
- Thermostat - Rt6
- Thermostat - Rt6p
- Thermostat - WRT1
- Drain Pan
63 PB
WIRING DIAGRAMS
24K VEA 208/230V 2.5/3.4/5.0
Figure 804 (80127302)
WHITE
WHITE
W
HITE
BLUE
RED
W
HITE
WHITE
GREEN
BROW
N
BROWN
BROWN
C
GREEN
H
E
R
M
F
A
N
BLACK
C
ELECTRONIC CONTROL
HE
RM
" F"
R
S
C
F
A
N
TERMINAL DETAIL
BLACK
BLUE
BLUE
BLUE
HEATER
2.5 KW & 3.5 KW
5.0 KW
RED
PRESSURE
SWITCH
COMPRESSOR
CONTACTOR
QUICK
DISCONNECT
TO MOTOR
MOUNT
OUTDOOR
FAN MOTOR
CAPACITOR
INDOOR BLOWER
MOTOR
TO MOTOR
MOUNT
W
HITE
(
TO L2)
CAPACITOR
COMPRESSOR
4770A (REF)
GASKET
TEMINAL COVER
NUT
SLR TAPE BUTYL
HARNESS COMPRESSOR
RED
BLACK
HOLDER
FUSE
PROVISIONING
MSTR TABLE
1
TERM STUD
INSULATOR
FUSE
BLACK
BLACK
(TO L1)
BLACK
INDOOR COIL SENSOR
4770D SEQ 104
OUTDOOR COIL SENSOR
4770D SEQ 105
TO DISPLAY
AMBIENT
AIR SENSOR
(POU 4770D SEQ 103)
L2 or ACN
L1
VOLTAGE SELECTION SWITCH
SET VOLTAGE TO 230V
RV
RELAY
FAN 4
RELAY
FAN 3
RELAY
FAN 2
RELAY
FAN 1
RELAY
HEAT
RELAY
HEAT
RELAY
COMP
RELAY
*
*
*
*
*
*
* *
*
*
*
*
LABEL
WARNING
COMP
SEALER
FLAG COVER
(PLACE COVER ON TERMINAL
IN CONTACT WITH WIRE)
- DETAIL A -
SEALER
(SEALER MUST BE A HALF OF A BAR UNDER THE CAP SURROUND
THE COMPR HARNESS AND A HALF ON THE TOP COVERING THE COMPR NUT)
DISPLAY SERVICE
-SEE DETAIL A-