RVP 6535*335 Series, Краткое руководство пользователя

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PRINTED CIRCUIT BOARD FREEZE SENSOR SECTION
INDOOR COIL SENSOR
1. The Indoor Coil Sensor, T14 and T15 terminals are connected to a thermister located in the evaporator (Indoor) coil.
2. This sensor is an active part of the circuit only in the cooling mode.
3. This sensor is ignored if “W” (Electric Heat) is energized.
4. This sensor opens if the TEMPERATURE of the INDOOR COIL (not ambient air temperature) reaches 28 degrees F. The
sensor closes at 55 degrees F.
5. If this sensor opens, the p.c. board will not output 12 volts DC to either Comp 1 (T2 and T3B) terminals or the Comp 2 (T3A
and T10) terminals on the board.
OUTDOOR COIL SENSOR
1. The Outdoor Coil Sensor, T16 and T17 terminals are connected to a thermister located in the condenser (Outdoor) coil.
2. This sensor is an active part of the circuit only in the heating mode.
3. This sensor is ignored whenever “W” (Electric Heat) is NOT energized.
4. This sensor opens if the TEMPERATURE of the OUTDOOR COIL (not ambient air temperature) reaches 18 degrees F. The
sensor closes at 38 degrees F.
5. If this sensor opens, the p.c. board will shut down all Heat Pump functions.
GREEN L.E.D. LIGHT OPERATION (FREEZE SENSOR)
1. If the GREEN light is on solid, everything is OK.
2. If the GREEN light is blinking slowly, the unit is in a 3-minute time delay mode.
3. If the GREEN light is blinking fast, there is either no line voltage to Circuit #1 or one of the thermisters are open.
4. If there is no GREEN light on, 12 VDC to the p.c. board has been lost.