THIS DRAWING CONTAINS PROPRIERTARY AND CONFIDENTIAL INFORMATION BELONG TO ITR AND MUST NOT
BE WHOLLY OR PARTIALLY REPRODUCED WITHOUT PRIOR WRITTEN PERMISSION OF ITR
2003
ELECTRICAL SCHEMATIC
2 FUSE BLOWN
1 OVERHEAT
DIAGNOSTIC CODES
3 FUEL PUMP / SOLENOID
0 VOLTAGE (HIGH OR LOW)
7 FLAME OUT
6 CIRCULATING PUMP
5 COMBUSTION FAN
HEATER CYCLING
THERMOSTAT OFF
8 COMPRESSOR
BYPASS MODE
REMOTE SWITCH OFF
SERVICE SWITCH (OFF)
4 IGNITOR
10 VOLTAGE FAULT (0 VDC IF OK)
8 CYCLING AQUASTAT (0.0 VDC IF NOT CYCLING)
7 POWER TO FLAME SENSOR (10.0 VDC TO 15.0 VDC
6 POWER TO CONTROL BOARD (10.0 VDC TO 15.0 VDC)
3 COMBUSTION FAN CURRENT (0.7 VDC TO 5.0 VDC IF OK)
2 OPEN COMBUSTION FAN (5.0 VDC IF OK)
1 FLAME SENSOR (0.0 VDC TO 3.0 VDC WHILE RUNNING)
14 BLOWN FUSE (0 VDC IF OK)
13 THERMOSTATS OR (W-W) (0 VDC IF ON)
12 RESET (5.0 VDC IF NOT PRESSED)
11 REMOTE SWITCH (5.0 VDC IF TURNED ON)
WHILE RUNNING)
9 OVERHEAT (5.0 VDC IF OK)
5 8.0 VDC POWER SUPPLY
4 5.0 VDC POWER SUPPLY
TEST POINTS
Figure 3-1
Wiring Diagram V2001
Summary of Contents for CO105D
Page 14: ...Figure 2 1 Component Parts CO Model See Chapter 8 for complete Parts Listing...
Page 15: ...Figure 2 2 Typical Installation...
Page 51: ...FIGURE 8 1 HEATER ASSEMBLY...
Page 52: ...FIGURE 8 2 COMPONENT BOX ASSEMBLY...
Page 53: ...FIGURE 8 3 WATER JACKET AND BURNER BOX ASSEMBLY...