Main
G61MP
Service Literature G61MP SERIES UNITS
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SPECIFICATIONS
OPTIONAL ACCESSORIES MUST BE ORDERED EXTRA
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SPECIFICATIONS
OPTIONAL ACCESSORIES MUST BE ORDERED EXTRA
G61MP36B045 PERFORMANCE (Less Filter)
G61MP36B070 PERFORMANCE (Less Filter)
G61MP48C090 PERFORMANCE (Less Filter)
G61MP48C110 PERFORMANCE (Less Filter)
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G61MP PARTS ARRANGEMENT
FIGURE 1
IUNIT COMPONENTS
AControl Box 1. Control Transformer (T1)
2. Door Interlock Switch (S51)
3. Circuit Breaker (CB8)
4. Integrated Control Board (A92)
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DIAGNOSTIC CODES
BBlower Compartment 1. Blower Motor (B3) and Capacitor (C4)
2. Secondary Limit Controls (S21)
CHeating Components 3. Flame Sensor
4. Ignitor
5. Burners (Figure 7)
6. Clamshell Heat Exchanger
7. Flame Rollout Switches (S47)
8. Primary Limit Control (S10)
9. Backup Secondary Limit Control (S113) (G61MP090, 110, 135 only)
10. Gas Valve (GV1)
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12. Combustion Air Inducer (B6)
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IIPLACEMENT AND INSTALLATION
TABLE 11 OUTDOOR TERMINATION KITS AND CORRESPONDING EQUIVALENCIES
AVent Piping Guidelines
BPVC Joint Cementing Procedure
C Venting Practices
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UPFLOW OR DOWNFLOW DIRECT VENT APPLICATIONS (Right-Hand Exit in Upflow Application Shown)
FIGURE 16
FIGURE 15
HORIZONTAL DIRECT VENT APPLICATIONS (Horizontal Right-Hand Air Discharge Application Shown)
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FIGURE 19
VENT TERMINATION CLEARANCES FOR INSTALLATIONS IN THE USA AND CANADA*
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FIGURE 22
FIGURE 26
FIGURE 25
FIGURE 24
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FIGURE 27
FIGURE 30
FIGURE 29
FIGURE 28
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IIISTART-UP APreliminary and Seasonal Checks
BHeating Start-Up
CSafety or Emergency Shutdown
DExtended Period Shutdown
IVHEATING SYSTEM SERVICE CHECKS AC.S.A. Certification
CAUTION
CTesting Gas Piping
DTesting Gas Supply Pressure
ECheck Manifold Pressure
F Proper Gas Flow (Approximate)
G Proper Combustion
H High Altitude
I Condensate pH Range
JFlame Signal
VTYPICAL OPERATING CHARACTERISTICS ABlower Operation and Adjustment
BTemperature Rise
CExternal Static Pressure
DBlower Speed Taps
VIMAINTENANCE
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Sequence of Operation
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NORMAL AND ABNORMAL HEATING MODE
A
B
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C
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COOLING SEQUENCE OF OPERATION
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CONTINUOUS LOW SPEED FAN SEQUENCE OF OPERATION
NOTE Continuous low speed fan and cooling low speed are equal to the low heat fan speed.
VIII Field Wiring Applications and Jumper Settings
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IXSURELIGHT CONTROL TROUBLESHOOTING CHART
PROBLEM: 1 UNIT FAILS TO OPERATE IN THE COOLING, HEATING, OR CONTINUOUS FAN MODE
PROBLEM 1: UNIT FAILS TO OPERATE IN THE COOLING, HEATING, OR CONTINUOUS FAN MODE
PROBLEM 2: UNIT FAILS TO FIRE IN THE HEATING MODE, COMBUSTION AIR BLOWER DOES NOT ENERGIZE
PROBLEM 2: UNIT FAILS TO FIRE IN THE HEATING MODE, COMBUSTION AIR INDUCER DOES NOT ENERGIZE (CONT.).
PROBLEM 5: BURNERS LIGHT WITH A HEATING DEMAND BUT UNIT SHUTS DOWN PREMATURELY
PROBLEM 5: BURNERS LIGHT WITH HEATING DEMAND BUT UNIT SHUTS DOWN PREMATURELY (CONT.)
PROBLEM 6: CONTROL SIGNALS LOW FLAME SENSE DURING HEATING MODE
PROBLEM 7: INDOOR BLOWER FAILS TO OPERATE IN COOLING, HEATING, OR CONTINUOUS FAN MODE
PROBLEM 8: RF STATIC DURING TIME FOR IGNITION