Friedrich WS10B30A-C - Manuals

5 FRIEDRICH ROOM MODEL NUMBER CODE W S 08 B 1 0 B 1st DIGIT - FUNCTION W = Thru-The-Wall, WallMaster Series 2nd DIGIT - TYPE S = Straight Cool E = Electric Heat Y = Heat Pump 3rd & 4th DIGITS - APPROXIMATE BTU/HR (Cooling) Heating BTU/HR capacity listed in Specifi cations/Performance Data Sectio...

6 * Rating Conditions: 80 degrees F, room air temp. & 50% relative humidity, with 95 degree F, outside air temp & 40% relative humidity PERFORMANCE DATA Calculate the heat loss of the space to be heated. As long as the heat loss does not exceed the resistance heating capacity rating of the u...

7 Wire Size Use ONLY wiring size recommended for single outlet branch circuit. Fuse/Circuit Use ONLY type and size fuse or HACR Breaker circuit breaker indicated on unit’s rating plate. Proper current protection to the unit is the responsibility of the owner. Grounding Unit MUST be grounded from bra...

8 FUNCTIONAL COMPONENTS A. Mechanical components Bellows condensate valveTemperature-sensitive valve that opens up to drain off condensate water when the outside temperature falls below 40°F and closes when the outside temperature reaches 58°F. Plenum assemblyDiffuser with directional louvers used t...

9 SYSTEM CONTROL PANEL (“WS” Models) CHECKING ROOM TEMPERATURE 1. Check the room temperature at the electronic control pad by pressing at the same time the “FAN SPEED” button and the temperature “UP” button on XQ & WS models . 2. The indoor temperature will display for 10 seconds. Indoor tempera...

10 SYSTEM CONTROL SWITCH - TEST Disconnect leads from control switch. Turn control to posi-tion being tested (see Figure 8). There must be continuity as follows: 1. “Off” Position-no continuity between terminals. 2. “Lo Cool” Position-between terminals “C” and “3”, “C2” and “2”, “LO” and “M/S”, “AR”...

11 IMPORTANT ANY SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. ALSO, ANY SEALED SYSTEM REPAIRS TO HEAT PUMP MODELS REQUIRE THE INSTALLATION OF A SUCTION LINE DRIER. the evaporator coil. As it enters the evaporator coil, the larger area and lower pressure ...

13 10. Evacuate system to maximum absolute holding pres-sure of 200 microns or less. NOTE: This process can be speeded up by use of heat lamps, or by breaking the vacuum with refrigerant or dry nitrogen at 5,000 microns. Pressure system to 5 PSIG and leave in system a minimum of 10 minutes. Release ...

14 NORMAL FUNCTION OF VALVE VALVE OPERATING CONDITION DISCH A R G E TU BE fro m Co m p re sso r S U CT IO N T U B E t o Co m p re ss o r Tu b e t o I N S ID E COI L Tu b e t o O U T S ID E COI L LEF T Pilot Ca pi lla ry T u be RIG H T P ilo t Ca pi lla ry T u be NOTES: * TEMPERATURE OF VALVE BODY **...

15 COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Problem Possible Cause Action Compressor does not run Low voltage Check voltage at compressor. 115V & 230V units will operate at 10% voltage variance T-stat not set cold enough or inoperative Set t-stat to coldest position. Test t-stat ...

19 HEAT / COOL ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Problem Possible Cause Action Room temperature uneven (Heating cycle) Heat anticipator (resistor) shorted (on applicable models) Disconnect power to unit. Remove resistor from t-stat bulb block. Plus in unit & allow to operate. Feel resi...