Friedrich VERTICAL AIR CONDITIONING SYSTEM R410A user manual

User manual for the device Friedrich VERTICAL AIR CONDITIONING SYSTEM R410A

Device: Friedrich VERTICAL AIR CONDITIONING SYSTEM R410A
Category: Air Conditioner
Manufacturer: Friedrich
Size: 2.8 MB
Added : 3/28/2014
Number of pages: 45
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Abstracts of contents
Summary of the content on the page No. 1

Service Manual – R410A Models
A Series (Electronic Controls)
Single Package Vertical Air Conditioning System
L Suffix 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)A18K25L-*
V(E, H)A24K25L-* V(E, H)A24K34L-* V(E, H)A24K50L-*
V(E, H)A24K75L-* V(E, H)A24K10L-*
VPK-ServMan-L (1-10) *Last Digit May Vary

Summary of the content on the page No. 2

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 servicin

Summary of the content on the page No. 3

Table of Contents Important Safety Information ........................................... 2-4 Capillary Tube Systems/Check Valve .......................... 24 Introduction ......................................................................... 4 Reversing Valve — Description/Operation .................. 25 Vert-I-Pak Model Number Identification Guide ................... 5 Testing Coil .................................................................. 25 Serial Number Identification Gui

Summary of the content on the page No. 4

IMPORTANT SAFETY INFORMATION The information contained in this manual is intended for use by a qualified 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 unqualified persons can result in subjecting the unqualified person making such repairs as well as the persons being served by the equipm

Summary of the content on the page No. 5

• 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 withi

Summary of the content on the page No. 6

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 dam

Summary of the content on the page No. 7

Model Identi fi cation Guide MODEL NUMBER V E A 24 K 50 RT L SERIES ENGI NEERI NG CODE V=Vertical Series E=Cooling with or without electric heat OPTIONS H=Heat Pump RT = Standa rd Rem ote Op er a tion SP = Seac oast Prot ecte d DESIGN SERIES A = 32" and 47" Cabinet 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 KW 24 = 24,000 50 = 5.0 KW 75 = 7.5 KW VOLTAGE 10 = 10 KW K = 208/230V-1Ph-60Hz VPAK

Summary of the content on the page No. 8

Chassis Specifications Model 2010 VEA09K VEA12K VEA18K VEA24K VHA09K VHA12K VHA18K VHA24K COOLING DATA COOLING BTUh 9400/9000 11500/11200 17000/16500 23000/22700 9200/9000 11500/11200 17000/16800 23000/22800 POWER (W) 959 1173 1888 2421 939 1186 1868 2527 EER 9.8/9.8 9.8/9.8 9.0/9.0 9.5/9.5 9.8/9.8 9.7/9.7 9.1/9.1 9.1/9.1 SENSIBLE HEAT RATIO 0.74 0.72 0.70 0.70 0.74 0.72 0.70 0.70 HEAT PUMP DATA HEATING BTUh N/A 8500 10800 16000 20000 COP @ 47F N/A 3.0 3.0 3.0 3.0 HEATING POWER (W) N/A 830 1055

Summary of the content on the page No. 9

Extended Cooling Performance VEA - EXTENDED COOLING PERFORMANCE OUTDOOR DRY BULB TEMP. (DEGREES F AT 40% R.H.) 75 85 95 105 110 INDOOR WET BULB TEMP. (DEGREES F AT 80 F D.B.) 72 67 62 72 67 62 72 67 62 72 67 62 72 67 62 BTUh 11054 10631 9842 10528 9926 9156 10114 9400 8319 9475 8413 7417 8954 7835 6914 WATTS 783 795 804 853 861 872 959 959 959 1037 1036 1039 1084 1083 1087 VEA09 AMPS 3.5 3.5 3.5 3.7 3.8 3.8 4.2 4.20 4.2 4.5 4.5 4.5 4.7 4.7 4.7 SHR 0.51 0.69 0.93 0.52 0.71 0.95 0.52 0.74 0.95 0.5

Summary of the content on the page No. 10

WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or instal- lation. All electrical connnections and wiring MUST be installed by a qualified electrician and conform to the National Electrical Code and all local codes which have jurisdiction. Failure to do so can result in personal injury and/or death. ELECTRICAL REQUIREMENTS Wire Size “Use ONLY time delayed fused disconnect or HACR type circuit breaker as indicated on the unit’s rating plate (see sample on this page). Pr

Summary of the content on the page No. 11

ReMOTe The RMOsTAT AND LOw VOLTAge C ONTROL CONNeCTIONs Cool Off Heat Auto On RT5 (Two speed fan) RT4 (One speed fan) Remote Thermostat Location All Friedrich Vert-I-Pak units are factory configured to be The thermostat should not be mounted where it may be controlled by using a 24V single stage remote wall mounted affected by drafts, discharge air from registers (hot or cold), thermostat. The thermostat may be auto or manual changeover or heat radiated from the sun or appliances.

Summary of the content on the page No. 12

ReMOTe The RMOsTAT AND LOw VOLTAge C ONTROL CONNeCTIONs (Continued) For desk control operation, connect one side of the switch to Thermostat Connections the D1 terminal and the other to the D2 terminal. Whenever C = Common Ground the switch closes, the unit operation will stop. W = Call for Heating Y = Call for Cooling Maximum Wire Length for Desk Control Switch R = 24V Power from Unit Wire Size Maximum Length GL = Call for Fan (Low Speed) #24 400 ft. GH = Call for Fan (High Speed) #2

Summary of the content on the page No. 13

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 specifically 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 benefit to the owner. The fan start and stop delays prevent abrupt changes in room acou

Summary of the content on the page No. 14

Electronic Control Con figuration Electronic Control Error Code The adjustable control dip switches are located at the lower Diagnostics and Test Mode left hand portion of the digital Smart Center. The inputs are only visible and accessible with the front cover removed from Error Code Diagnostics the Unit. The VPAK electronic control continuously monitors the Vert-I-Pak unit operation and will store error codes if certain conditions Factory Dip Switch Con figuration are witnessed. In some ca

Summary of the content on the page No. 15

electronic Control error Code Diagnostics Error Code Translation Action Taken By Unit Possible Cause Code EF Error Free None Unit Operating Normally Shut unit down. Flash error code. When • Inadequate power supply Extreme low voltage condition exists (<198V 02 voltage rises to adequate level normal unit • Defective breaker for 230V units and <239V for 265V units). operation is restored. • Blown fuse Return air thermistor sensor open or Leave unit running. Alternately flash error 03 • De

Summary of the content on the page No. 16

VPAk e LeCTRONIC CONTROL FeATURes Thermostat Compatibility: Note: The Compressor Time Delay feature is The VPAK Electronic Control is compatible with disabled during “Test Mode” operation. Friedrich RT4 and RT5 Thermostats. The VPAK Electronic control is also compatible Fan delay: with most standard Single Stage Heat/Cool The Electronic Control is equipped with a Thermostats. feature that will start the fan 5 seconds EARLY NOTE: Field supplied Thermostats MUST (i.e. before compresso

Summary of the content on the page No. 17

External Static Pressure External Static Pressure can best be de fi ned as the pressure 1. Set up to measure external static pressure at the difference (drop) between the Positive Pressure (discharge) supply and return air. and the Negative Pressure (intake) sides of the blower. 2. Ensure the coil and fi lter are clean, and that all the External Static Pressure is developed by the blower as a registers are open. result of resistance to air fl ow (Friction) in the air distribution system EXT

Summary of the content on the page No. 18

Correct CFM (if needed): Ductwork Preparation Chart B – Correction Multipliers If flex duct is used, be sure all the slack is pulled out of the flex duct. Flex duct ESP can increase considerably when not fully extended. DO NOT EXCEED a total of .30 ESP, as this is the MAXIMUM design limit for the VERT-I-PAK A-Series unit. IMPORTANT: FLEX DUCT CAN COLLAPSE AND CAUSE AIRFLOW RESTRICTIONS. DO NOT USE FLEX DUCT FOR: 90 DEGREE BENDS, OR UNSUPPORTED RUNS OF 5 FT. OR MORE. Explanation of c

Summary of the content on the page No. 19

COMPONeNTs TesTINg 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 conditions.

Summary of the content on the page No. 20

COMPONeNTs TesTINg (Continued) HEATER ELEMENTS AND LIMIT SWITCHES’ DRAIN PAN VALVE SPECIFICATIONS During the cooling mode of operation, condensate which All heat pumps and electric heat models are equipped collects in the drain pan is picked up by the condenser fan with a heating element and a limit switch (bimetal ther- blade and sprayed onto the condenser coil. This assists mostat). The limit is in series with the element and will in cooling the refrigerant plus evaporating the water. i


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