Friedrich R410A manual Table of Contents

Table of Contents

Important Safety Information	2-4	Reversing Valve Description/Operation	28
Introduction	4	Testing Coil	28
Vert-I-Pak Model Number Identifi cation Guide	5	Checking Reversing Valves	28
Serial Number Identifi cation Guide	5	Reversing Valve
Electrical Requirements	6	Touch Testing Heating/Cooling Cycle	29
Chassis Specifi cations	7	Procedure For Changing Reversing Valve	29-30
Cooling Performance Data	8	Compressor Checks	30
Extended Cooling Performance	8	Locked Rotor Voltage Test	30
Electronic Control Features	9	Single Phase Connections	30
Electronic Control Sequence of Operation	10-11	Determine Locked Rotor Voltage	30
Low Voltage Interface Connections	12	Locked Rotor Amperage Test	30
Service	13	Single Phase Running & Locked Rotor Amperage	30
VPAK 9-18 BTU Units Components Identifi cation	14	Checking the Overload	30
VPAK 9-18 BTU Units Components Identifi cation	15	External Overload	31
Error Codes and Alarm Status	16	Compressor Single Phase Resistance Test	31
Components Testing	17	Compressor Replacement	32-33
Electronic Control Board Components Identifi cation	18	Routine Maintenance	33
Components Testing (Continued)	19-22	Unit Performance Test Data Sheet	34
Refrigerant Sequence of Operation	23	Thermistor Resistance Values	35
Sealed Refrigeration System Repairs	24	Troubleshooting Charts	36-39
Refrigerant Charging	24	Remote Wall Thermostat Wiring Diagrams	40
Method Of Charging	22-23	Electrical and Thermostat Wiring Diagrams	41-46
Undercharged Refrigerant Systems	25	Accessories	47
Overcharged Refrigerant Systems	26	Warranty	48
Restricted Refrigerant Systems	26	VPAK 9-18K Parts	50-53
Capillary Tube Systems/Check Valve	27	VPAK 24K Parts	54-58
		Technical Support/Contact Info	59

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