107
FIGURE 62
106
FIGURE 61
Status LED
Status LED Description
Status LED Troubleshooting Information
Green “POWER”
Module has power
Supply voltage is present at module terminals
Red “TRIP”
Thermostat demand signal
1. Compressor internal overload is open
Y1 is present, but the
2. Broken wire or connector is not making contact
compressor is not
3. Low pressure switch open, if present
running
4.
4.
4.
Compressor contactor has failed open
Yellow “ALERT”
Long Run Time
1. Low refrigerant charge
Flash Code 1
Compressor is
2. Evaporator blower is not running
running extremely
3. Evaporator coil is frozen
long run cycles
4. Faulty TXV
5. Condenser coil is dirty
6. Liquid line restriction (filter drier blocked if present in system)
7. Thermostat is malfunctioning
Yellow “ALERT”
System Pressure Trip
1.
Flash Code 2
Discharge or suction
2.
Condenser coil poor air circulation (dirty, blocked, damaged)
pressure out of limits or
3.
Condenser fan is not running
compressor overloaded
Return
If low pressure switch is present, check flash code (1)
information
air duct has substantial leakage
Yellow “ALERT”
Short Cycling
1.
Thermostat demand signal is intermittent
Hot gas sensor defective, if present
Flash Code 3
Compressor is running
2.
Time delay relay defective, if present
only briefly
3.
Yellow “ALERT”
Locked Rotor
1. Run capacitor has failed
Flash Code 4
2. Low line voltage (contact utility if voltage at disconnect is low)
3. Excessive liquid refrigerant in compressor
4. Compressor bearings are seized
Yellow “ALERT”
Open Circuit
1. Compressor contactor has failed open
Flash Code 5
2. High pressure switch is open, If present
3. Open circuit in compressor supply wiring or connections
4. Unusually long compressor protector reset time due to
extreme ambient temperature
5. Compressor windings are damaged
Yellow “ALERT”
Open Start Circuit
1. Run capacitor has failed
Flash Code 6
Current only in run circuit
2. Open circuit in compressor start wiring or connections
3. Compressor start winding is damaged
Yellow “ALERT”
Open Run Circuit
1. Open circuit in compressor run wiring or connections
Flash Code 7
Current only in start circuit
2. Compressor run winding is damaged
Yellow “ALERT”
Welded Contactor
1. Compressor contactor has failed closed
Flash Code 8
Compressor always runs
2. Thermostat demand signal not connected to module
Yellow “ALERT”
Low Voltage
1. Control circuit transformer is overloaded
Flash Code 9
Control circuit < 17VAC
2. Low line voltage (contact utility if voltage at disconnect is low)
• Flash Code number corresponds to a number of LED flashes, followed by a pause and then repeated.
TRIP and ALERT LEDs flashing at same time means control circuit voltage is too low for operation.
Reset ALERT Flash code by removing 24VAC power from module.
Last ALERT Flash code is displayed for 1 minute after module is powered on.
92-101534-03-00
High head pressure
XVIII. COMFORT ALERT DIAGNOSTIC CHART
SINGLE PHASE UNIT
XVIII. COMFORT ALERT DIAGNOSTIC CHART
SINGLE PHASE UNIT
Summary of Contents for RRNL
Page 39: ...39 FIGURE 31 COOLING ON DELAY PROFILES INTERFACE BOARD SWITCH 7 8 7 8 7 8 7 8...
Page 40: ...40 FIGURE 32 BLOWER OFF DELAY PROFILES INTERFACE BOARD SWITCH 7 8 7 8 7 8 7 8...
Page 80: ...80 FIGURE 35 WIRING DIAGRAM XV WIRING DIAGRAMS...
Page 81: ...81 FIGURE 36 WIRING DIAGRAM...
Page 82: ...82 FIGURE 37 WIRING DIAGRAM 5 TON 4 TON LOW HEAT HIGH COOL 3 TON LOW HEAT MED COOL...
Page 83: ...83 FIGURE 38 WIRING DIAGRAM...
Page 84: ...84 FIGURE 39 WIRING DIAGRAM...
Page 85: ...85 FIGURE 40 WIRING DIAGRAM...
Page 86: ...86 FIGURE 41 WIRING DIAGRAM...
Page 87: ...87 FIGURE 42 WIRING DIAGRAM...
Page 88: ...88 FIGURE 43 WIRING DIAGRAM...
Page 91: ...91 FIGURE 46 SYSTEM CHARGE CHARTS RNL RPL 3 TON COOLING SYSTEM CHARGE CHART REFRIGERANT 410A...
Page 93: ...93 FIGURE 48 SYSTEM CHARGE CHARTS RNL RPL 4 TON COOLING SYSTEM CHARGE CHART REFRIGERANT 410A...
Page 106: ...106 15 SECOND PREPURGE FIGURE 61...
