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
68 PB
WIRING DIAGRAMS
24K VHA 265V 7.5/10.0
Figure 809 (80126402)
C OMP R E S S OR
C ONT AC TO R
B LAC K
E LE CTR ONIC C ONTR OL
4
7
7
0
D
B LAC K
BR OW N
TO MO TO R
MOU NT
R E D
B LAC K
G R E E N
R E D
R E D
B LUE
H
E
A
T
E
R
R
E
L
A
Y
X
2
B LAC K
W
HIT E
F
A
N
HE
R M
B R OW
N
C
C AP ACIT OR
QUIC K DIS C ONNE C T
C OMP R E S S OR
4770A (R E F )
C AP AC IT OR
F
A
N
WHITE
C
TE R MINAL DE TAIL
H
E
R
M
B R OW N
WHITE
WHITE
P R OVIS IONING
MS TR T AB LE
1
TO MO TO R
MOU NT
OUT DOOR
F AN MOT OR
R E D
BLAC K
B LUE
P R E S S UR E
WITC H
B LUE
B LUE
C OIL S OLE NO ID
G R E E N
HE AT E R
7.5 K W & 10.0 K W
INDOO R
B LOW E R
MO TO R
WHIT E
B LAC K
B LAC K
W
HIT E
B LAC K
WHITE
TR AN S F O R ME R
IN= 265V
OUT= 230V
(4770D 183)
W
HIT E
NUT
S LR T AP E B UT Y L
TE R M S TUD
INS ULAT OR
TE MINAL C OV E R
G AS KE T
C
S
" F "
R
HAR NE S S C OMP R E S S OR
R E D
507
W
HIT E
F US E
HOLDE R
(4770D
BLACK
BLAC K
BLAC K
B R OWN
B LAC K
B LUE
B LAC K
BLAC K
WHITE
VO L T AG E S E L E CT ION S WIT C H
S E T VO L TA G E T O 230V
S E ALE R
600
(S E E PIC TU R E )
FU S E
FU S E
*
*
S E ALE R DE TAIL
LAB E L
WAR NING
C OMP
F LAG C OV E R
(P LAC E ON TE R MINAL
IN C ONT AC T W IT H WIR E )
WIR ING DIAG R AM
C OOL, HE AT P UMP, E H, 265V
2.5, 3.4, 5.0 K W
LAR GE C HAS S IS
C OMP
R E LAY
HE AT
R E LAY
HE AT
R E LAY
F AN 1
R E LAY
FAN 2
R E LAY
FAN 3
R E LAY
F AN 4
R E LAY
R V
R E LAY
*
*
*
*
*
*
*
*
*
*
*
*
S E R VIC E DIS P LAY
P OU 4770D S E Q 102
AMB IE NT
AIR
S E NS OR
P OU 4770D
S E Q 103
INDOOR C OIL S E NS OR
P OU 4770D S E Q 104
OUT DOOR C OIL S E NS OR
4770D S E Q 105
*
*