Friedrich 000 BTU'S, 9 service manual Introduction, Property Damage Hazards

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PROPERTY DAMAGE HAZARDS

FIRE DAMAGE HAZARDS:

•Read the Installation/Operation Manual for this air conditioning unit prior to operating.

•Use air conditioner on a single dedicated circuit within the specified amperage rating.

•Connect to a properly grounded outlet only.

•Do not remove ground prong of plug.

•Do not cut or modify the power supply cord.

•Do not use extension cords with the unit.

•Failure to follow these instructions can result in fire and minor to serious property damage.

WATER DAMAGE HAZARDS:

•Improper installation maintenance, or servicing of the air conditioner unit, or not following the above Safety Warnings can result in water damage to personal items or property.

•Insure that the unit has a sufficient pitch to the outside to allow water to drain from the unit.

•Do not drill holes in the bottom of the drain pan or the underside of the unit.

•Failure to follow these instructions can result in result in damage to the unit and/or minor to serious property damage.

INTRODUCTION

This service manual is designed to be used in conjunction with the installation manuals provided with each unit.

This service manual was written to assist the professional HVAC service technician to quickly and accurately diagnose and repair any malfunctions of this product.

This manual, therefore, will deal with all subjects in a general nature. (i.e. All text will pertain to all models).

IMPORTANT: It will be necessary for you to accurately identify the unit you are servicing, so you can be certain of a proper diagnosis and repair. (See Unit Identification.)

58"

	Power
	Disconnect
29"
VPRG4 Access Panel &	installed drain pan
Return Air Filter Grille	(refer to local codes)
	Optional Platform
	3" Clearance on all three
	sides minimum for
	service and installation

Rigid Ductwork

Exterior Wall

Flexible Ductwork

VPAWP1-8/1-14 Wall Plenum

Plenum Divider

	VPDP1 drain pan beneath
Chassis is	unit is required on all
shipped with	VEA/VHA24 units. Drain pan
vibration	must be installed prior to
isolators	chassis installation
installed

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Contents Single Package Vertical Air Conditioning System Technical Support Contact Information Table of Contents Important Safety Information Your safety and the safety of others are very importantRefrigeration System Hazards Introduction Property Damage HazardsSerial Number Identiﬁcation Guide Chassis Specifications Electric Heat DataExtended Cooling Performance VEA Extended Cooling PerformanceVEA/VHA09-24 VEA Extended Cooling Performance Electrical Requirements Electric Shock HazardRemote Thermostat and Low Voltage Control Connections RT5 Two speed fan RT4 One speed fanThermostat Connections Electronic Control Board Features Quiet Start/StopElectronic Control Conﬁguration Electronic control error codes diagnostics and test mode DiagnosticsTest Mode Power On and Off Features on the Electronic Control Cool mode control features for cool with electric heat units Compressor operation depends on t-stat settings Component description / A-Series specifications VERT-I-PAK Single Packaged Vertical AIR ConditionersExternal Static Pressure Indoor Airflow Data Capacitor Check with Capacitor Analyzer Components TestingCapacitors Capacitor ConnectionsComponents Testing Heater Elements and Limit SWITCHES’ SpecificationsDrain PAN Valve Refrigeration Assembly Refrigeration Sequence of OperationService CUT/SEVER HazardEquipment Must be Capable Sealed Refrigeration System RepairsEquipment Required Risk of Electric ShockMethod Of Charging / Repairs Burn HazardFreeze Hazard Undercharged Refrigerant Systems Overcharged Refrigerant SystemsRestricted Refrigerant System Check Valve Hermetic Components CheckMetering Device Capillary Tube SystemsReversing Valve DESCRIPTION/OPERATION Testing the Coil Checking the Reversing ValveFire Hazard Procedure For Changing Reversing ValveTouch Test in Heating/Cooling Cycle Explosion HazardCompressor Checks Single Phase Resistance Test Ground TestChecking Compressor Efficiency Compressor Replacement Recommended procedure for compressor replacementHigh Temperatures Rotary Compressor Special Troubleshooting and Service Blower Wheel / Housing / Condenser FAN / Shroud Routine MaintenanceCoils and Base PAN Excessive Weight Hazard AIR FilterFront Cover Routine MaintenanceSleeve / Drain Condensate Disposal SystemElectrical Troubleshooting Chart Cooling 9K BTU, 12K BTU, & 18K BTUElectrical Troubleshooting Chart Cooling 24K BTU Circuit Breakers areElectrical Troubleshooting Chart Heat Pump Heat Pump ModeTroubleshooting Chart Cooling Troubleshooting Chart HeatingVEA 09/12/18 with 2.5 KW, 3.4 KW or 5KW Electric HeatVHA 09/12/18 with 2.5 KW, 3.4 KW or 5KW Cool with Electric Heat Heat Pump with Electric Heat Cool with Electric Heat Heat Pump with Electric Heat Outdoor Coil Return Air Indoor Coil Accessories Wall PlenumDrain PAN Friedrich Air Conditioning Company Technical Support Contact Information Friedrich AIR Conditioning CO