FIGURE 64
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
106
Summary of Contents for RRNL-B
Page 39: ...39 FIGURE 31 COOLING ON DELAY PROFILES INTERFACE BOARD SWITCH 7 8 7 8 7 8 7 8...
Page 40: ...FIGURE 32 BLOWER OFF DELAY PROFILES INTERFACE BOARD SWITCH 7 8 7 8 7 8 7 8 40...
Page 77: ...FIGURE 35 WIRING DIAGRAM XV WIRING DIAGRAMS 77...
Page 78: ...FIGURE 36 WIRING DIAGRAM 78...
Page 79: ...FIGURE 37 WIRING DIAGRAM 5 TON 4 TON LOW HEAT HIGH COOL 3 TON LOW HEAT MED COOL 79...
Page 80: ...FIGURE 38 WIRING DIAGRAM 80...
Page 81: ...FIGURE 39 WIRING DIAGRAM 81...
Page 82: ...FIGURE 40 WIRING DIAGRAM 82...
Page 83: ...FIGURE 41 WIRING DIAGRAM 83...
Page 84: ...FIGURE 42 WIRING DIAGRAM 84...
Page 85: ...FIGURE 43 WIRING DIAGRAM 85...
Page 86: ...86 FIGURE 44 WIRING DIAGRAM...
Page 87: ...87 FIGURE 45 WIRING DIAGRAM...
Page 90: ...FIGURE 48 SYSTEM CHARGE CHARTS RNL RPL 3 TON COOLING SYSTEM CHARGE CHART REFRIGERANT 410A 90...
Page 92: ...FIGURE 50 SYSTEM CHARGE CHARTS RNL RPL 4 TON COOLING SYSTEM CHARGE CHART REFRIGERANT 410A 92...
Page 108: ...108 CM 0314...
