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Single Package Vertical Air Conditioning System
9-18K 24K
A Series (Electronic Controls)
L-B Suffi x, R410A Models
V(E, H)A09K25L-* V(E, H)A09K34L-* V(E, H)A09K50L-*
V(E, H)A12K25L-* V(E, H)A12K34L-* V(E, H)A12K50L-*
V(E, H)A18K25L-* V(E, H)A18K34L-* V(E, H)A18K50L-*
V(E, H)A24K25L-* V(E, H)A24K34L-* V(E, H)A24K50L-*
V(E, H)A24K75L-* V(E, H)A24K10L-*
VPK-ServMan-L (4-11) *Last Character May Vary
2011-2012 Service/Parts Manual
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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 catio
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IMPORTANT SAFETY INFORMATION The information contained in this manual is intended for use by a qualifi ed service technician who is familiar with the safety procedures required for installation and repair, and who is equipped with the proper tools and test instruments required to service this product. Installation or repairs made by unqualifi ed persons can result in subjecting the unqualifi ed person making such repairs as well as the persons being served by the equipm
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• Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel, and sleeve on the room side of the air conditioning unit while cleaning. • Electrical component malfunction caused by water could result in electric shock or other electrically unsafe conditions when the power is restored and the unit is turned on, even after the exterior is dry. • Never operate the A/C unit with wet hands. • Use air conditioner on a single dedicated circuit within th
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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 specifi ed amperage rating. • Connect to a properly grounded electrical circuit only. • Do not use extension cords with the unit. • Failure to follow these instructions can result in fi re and minor to serious property damage. WATER DAMAGE HAZARDS: • Improper installation maintenance, or servicing of
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Model Identifi cation Guide MODEL NUMBER V E A 18 K 50 RT L-B L; MARKETING SUFFIX SERIES Indicates Modification (subject to change) V=Vertical Series B; ENGINEERING SUFFIX E=Cooling with or without electric heat Indicates Modification (subject to change) H=Heat Pump DESIGN SERIES RT = Standard Wired Remote A = 32" and 47" Cabinet T-stat Operation NOMINAL CAPACITY ELECTRIC HEATER SIZE A-Series (Btu/h) A-Series 09 = 9,000 00 = No electric heat 12 = 12,000 25 = 2.5 KW 18 = 18,000 34 = 3.4 K
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ELECTRICAL REQUIREMENTS WARNING NOTICE ELECTRIC SHOCK HAZARD Turn off electric power before service or instal- Not following the previous WARNING could result lation. All electrical connnections and wiring in fire or electrically unsafe conditions which could MUST be installed by a qualified electrician and cause moderate or serious property damage. conform to the National Electrical Code and all Read, understand and follow the previous warning. local codes which have jurisdiction. Failur
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For VPAK Cool with Electric Heat 24K For VPAK Heat Pumps 24K Electrical Data VEA24K VHA24K Heater Watts 2500/2050 3400/2780 5000/4090 7500/6135 10000/8180 2500/2050 3400/2780 5000/4090 7500/6135 10000/8180 Voltage 230/208 230/208 Heating BTU/h 8500/7000 11600/9500 17000/13900 25598/20939 34130/27918 8500/7000 11600/9500 17000/13900 25598/20939 34130/27918 Heating Current (Amps) 10.9/9.9 14.8/13.4 21.7/19.7 32.6/29.5 43.5/39.3 10.9/9.9 14.8/13.4 21.7/19.7 32.6/29.5 43.5/39.3 Minimum Circuit Ampac
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TECHNICAL SERVICE DATA Cooling Performance Data INDOOR COIL ELECTRICAL OPERATING Refrigerant TEMPERATURE OUTDOOR COIL Discharge Line Suction Line RATINGS PRESSURES Charge SERVICE DATA º F TEMPERATURE Temperature Temperature Super Heat Sub-Cooling Cooling¹ Temperature º F º F º F Voltage Amps Supply Air Suction Discharge R-410A - Oz. Drop VEA09K**RTL 230/208 4.2 58 22 118 156 66 9 24 151 389 33.5 VEA12K**RTL 230/208 5.2 57 23 116 158 59 12 17 141 396 32.0 VEA18K**RTL 230/208
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ELECTRONIC CONTROL BOARD FEATURES The new Friedrich Vert-I-Pak has state of the art features to improve guest comfort and conserve energy. Through the use of specifi cally designed control software, Friedrich has accomplished what other Manufacturer’s have only attempted – a quiet, dependable, affordable and easy to use Vert-I-Pak. Below is a list of standard features on every Friedrich VPAK and their benefi t to the owner. The fan start and stop delays prevent abrupt changes in room acousti
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Note: Unit is operated by a wired remote wall t-stat which is connected to an electronic control board at the VPAK unit. (Compressor Heat) Heat / Cool Units set point of the t-stat if The Heat Mode in Cool with Electric Heat Units When the t-stat is in the Heat Mode, if the indoor ambient temperature is below the heat set point, the fan turns on 5 seconds prior then the electric heat will turn on. When the t-stat is satisfied, the electric heat will turn off. The fan turns off 15 seconds later
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Compressor Lock Out Time The lockout feature ensures that the compressor is de-energized for a period of time. The timer varies randomly from 180 to 240 seconds The compressor lockout is initiated every time the compressor is “off” due to: (1) Satisfying the T-stat temperature set point (2) Changing mode to fan only or heat (3) Turning the unit off (4) Power is restored after failure (5) Line power is restored from a brown out condition Cooling Fan Delay This is only for t-stat Fan
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Low Voltage Interface Connections Thermostat Selection Friedrich recommends the use of the Friedrich RT4 and RT6. These All Vert-I-Pak units have a low voltage interface connector through thermostats are single stage heat/cool, manual changeover. The RT4 is a which a Remote Wall Thermostat, Desk Control and Auxiliary Fan’s digital display thermostat with single speed fan control. The RT6 features Relay can be connected. The interface connector is located on the a digital display, two fan s
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SERVICE Remote Wall Thermostat Location The thermostat should not be mounted where it may be affected by drafts, discharge air from registers (hot or cold), or heat radiated from the sun WARNING appliances, windows etc.. The thermostat should be located about 5 Ft. ELECTRIC SHOCK HAZARD above the floor in an area of average temperature, with good air circulation. Turn off electric power before service or Mercury bulb type thermostats MUST be level to control temperature installation. accu
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VPAK 9-18K BTU UNITS COMPONENTS IDENTIFICATION Blower Wheel and Heater in here Nameplate Air Discharge 10” Duct Collar Condenser Heater Diagnostic Touch Pad Pullout Disconnect Ground Compressor Blower/Fan Motor Capacitor Fresh Air Vent Evaporator Coil Condenser Air Intake Coil Thermistor Compressor Evaporator Front Side Left and Front Sides Coil Thermistor Evaporator Coil Fresh Air Vent Door Heater Blower Wheel Condenser Air Intake Condenser Blower/Fan Motor Condenser Fan Shroud Condenser Air
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VPAK 24K BTU UNITS COMPONENTS IDENTIFICATION Electric Control Panel 10” Duct Collar Air Discharge Blower Wheel Return Air Filter Electronic Air Intake Control Board Nameplate Fresh Air Door Lever Pull Out Diagnostic Compressor Disconnect Touch Pad Contactor Front Side Blower Wheel Compartment Evaporator Coil Thermistor Evaporator Coil Heater Capillary Tube Compressor Capacitor Blower/ Condenser Fan Motor Condenser Capacitor Air Discharge Compressor Condenser Condenser Shroud Fresh Air Door Conde
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Error Codes and Alarm Status Unit Control Panel The display shown below has four digits. The left two digits indicate the error code # ( 1 to 24 ), The On/Off icons above these two digits indicate the currents state of the error code. The right two digits show the history count (up to 99) of the associated error code. The display contains a maintenance icon (wrench) that will illuminate to indicate when the unit needs service. This wrench indicates an error code # is on (active). To find out w
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COMPONENTS TESTING Testing the Diagnostic Service Module Testing the Electronic Control Board WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. If the Diagnostic Service Module does not turn on: 1. Make sure there is 208/230 VAC to the unit and that it is turned on. 2. Disconnect the diagnostic service module
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ELECTRONIC CONTROL BOARD COMPONENTS IDENTIFICATION AND TESTING (Continued) (See wiring diagrams pages 41-46) VPAK 24K Front Back High Pressure Switch Not Used Reversing Valve (Blue) Not Used (Green) Not Used Not Used High Speed Not Used Low Speed Transformer 115/230 Volts Diagnostic Service Module Not Used T-stat Terminals Transformer voltage FP F2 F1 D2 D1 C GH GL B Y W R Fuse 10 Amps Selector Switch 250 VaC 115/230 Volts Low Voltage Interface Connection Ensure it is set at 230VAC Sample boar
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COMPONENTS TESTING (Continued) BLOWER / FAN MOTOR Many motor capacitors are internally fused. Shorting the A single phase permanent split capacitor motor is used to drive terminals will blow the fuse, ruining the capacitor. A 20,000 the evaporator blower and condenser fan. A self-resetting ohm 2 watt resistor can be used to discharge capacitors overload is located inside the motor to protect against high safely. Remove wires from capacitor and place resistor temperature and high amperage
