Heat Controller BG-81G - Manual

 Control panel for cooling and heating models: B Panel Note : The control panels above are representative of many available models. Your model may be slightly different. On/Off (On and Off): Press this button once to start the unit, press again to stop. FAN : Press this button to select appropriate...

3. UNIT DIMENSION 3.1 Unit dimension: 4. OPERATION LIMITS 4.1 Cooling operation Outdoor unit air temp DB Indoor air temp DB Service Manual Room Air Conditioner with R-410A Heat Controller, Inc. 6

Note: The chart is the result from the continuous operation under constant air temperature conditions. However, the initial pull-down stage is not included. 4.2 Electric heating operation Indoor air temp DB Outdoor air temp DB Note: The chart is the result from the continuous operation under constan...

5. PROTECTION FUNCTION 5.1 Symbol & Meaning TA: Indoor ambient temperature; TE: Indoor evaporator temperature; TS: Setting temperature through the remote controller. 5.2 Protection Function  3 minute compressor time delay The compressor will wait for 3 minutes before restarting, so as to preven...

compressor (HERM) terminal. A satisfactory capacitor will cause a deflection on the pointer, then gradually move back to infinity. 4. Reverse the leads of the probe and momentarily touch the capacitor terminals. The deflection of the pointer should be two times that of the first check if the capacit...

6.6 VALVE, DRAIN PAN (see Figure 7) During the cooling mode of operation, condensate which collects in the drain pan is picked up by the condenser fan blade and sprayed onto the condenser coil. This assists in cooling the refrigerant plus evaporating the water. During the heating mode of operation, ...

No No The "filter check" lamp is on. Press "filter check" button several times and check whether the problem stops. Replace the main control board. No Button of remote controller doesn’t work. No Check the power supply. Check whether the voltage of battery is lower than 2.2V. No Chec...

Compressor doesn’t work. Check the power supply. Check whether the voltage is too high or too low. No Check the wiring. Check whether the compressor is in overload protection mode. Check whether t he relay of compressor in PCB works normally (Start the uni t, wait 3 m inutes for the compressor to tu...

The air conditioner doesn’t work. Check the power supply. Check the wiring. Check whether the transformer has failed. Measure the output voltage of transformer and check whether it is the range from +5V to 12V. If not, replace the transformer. Replace the PCB. The compressor doesn’t stop, after the ...

Water drips from the unit. Check whether the ambient humidity is too high. Check whether the indoor outlet airflow foam is wet if water is dripping from the louvers. Check whether the unit is correctly installed. Check whether the air outlet foam is installed normally. Check whether the foam of evap...

8.2 General Troubleshooting PROBLEM P OSSIBLE CAUSE REMARK No power Check voltage at electrical outlet. Correct if none. Power supply cord Check voltage at the power cord terminal. Replace the power cord if none. Wire disconnected or connection loose Connect wire. Refer to wiring diagram for termina...

8.3 Troubleshooting Cooling PROBLEM POSSIBLE CAUSE TO CORRECT Low voltage. Check for voltage at compressor. 115 volt and 230 volt units will operate at 10% voltage variance Thermostat not set cold enough or inoperative. Set thermostat to coldest position. Test thermostat and replace if inoperative. ...

PROBLEM POSSIBLE CAUSE TO CORRECT Check operation of unit. Replace overload if Overload inoperative. Opens too soon. system operation is satisfactory. Compressor attempts to start, or runs for short periods only. Compressor attempts to start before system pressures are equalized. Allow a minimum of ...

9. INSTALLATION ACCESSORY LIST ▌ Part list for CD Series: No. Part No. Part Name Quantity 1 202921890000 Grille(Aluminum) 1 2 201121890009 Grille(plastic) 1 3 201121890006 Stuffer seal 1 4 201121890007 Trim Frame(side legs) 2 5 201121890008 Trim Frame(top & bottom legs) 2 10. CHARACTERISTIC OF T...