Table of Contents
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INSTALLATION
INSTRUCTIONS
CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
GROUND INSTALLATION . . . . . . . . . . . . . . . . . . . . . 3
ROOF INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 3
UNIT PLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
VERIFY INDOOR REFRIGERANT ORIFICE . . . . . . . 4
INSTALLATIONS REQUIRING TXV . . . . . . . . . . . . . 4
PIPING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PRECAUTIONS DURING LINE INSTALLATION . . . . 5
PRECAUTIONS DURING BRAZING OF LINES. . . . . 6
GENERAL INFORMATION & GROUNDING . . . . . . . . . . 8
FIELD CONNECTIONS POWER WIRING . . . . . . . . . . . . 8
FIELD CONNECTIONS CONTROL WIRING . . . . . . . . . . 8
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MEASUREMENT METHOD . . . . . . . . . . . . . . . . . . . . 9
SUPERHEAT CHARGING METHOD . . . . . . . . . . . . 9
SYSTEM START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ENERGIZE CRANKCASE HEATER . . . . . . . . . . . . . 9
SYSTEM CONTROLLER - HDB076 ONLY . . . . . . . 13
INSTRUCTING THE OWNER. . . . . . . . . . . . . . . . . . 13
INDICATIONS OF PROPER OPERATION . . . . . . . 13
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
CAUTION: READ ALL SAFETY GUIDES BEFORE
YOU BEGIN TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
STELLAR
AIR CONDITIONING UNIT
SPLIT-SYSTEM COOLING
MODELS:
10 SEER
11 SEER
12 SEER
50 Hz
035-14562-000 REV A (999)
H*DB012 - 76
H*DE024 - 60
H*DH018 - 60
H*DA018-076
Form 550.38-N1Y (999)
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Table of Contents
Related Manuals for York H*DB012 - 76
Summary of Contents for York H*DB012 - 76
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Page 1: Table Of Contents
INDICATIONS OF PROPER OPERATION ..13 MODELS: 10 SEER H*DB012 - 76 MAINTENANCE ......13 11 SEER... -
Page 2: General
550.38-N1Y GENERAL Installer should pay particular attention to the words: NOTE, CAUTION and WARNING. This instruction covers the installation of the following Stellar NOTES are intended to clarify or make the installation easier. air conditioning units. CAUTIONS are given to prevent equipment damage. NOMENCLATURE WARNINGS are given to alert the installer that personal H 4 DB 030 S 06... -
Page 3: Location
550.38-N1Y WEATHERPROOF THERMOSTAT BLOWER DISCONNECT 48” OVERHEAD MOTOR SWITCH CLEARANCE TO POWER 12” REAR RELAY REQUIRED SUPPLY AND SIDES CLEARANCE NEC CLASS 1 REQUIRED WIRING Sit unit on rubber NEC CLASS 2 elevator WIRING grommets to reduce COIL noise and allow for proper drainage. -
Page 4: Verify Indoor Refrigerant Orifice
550.38-N1Y Coil is under 30 PSIG helium pressure. Relieve pres- sure from schrader valve on liquid line side. This fitting is a right-hand thread, turn counter-clock- wise to remove. First, relieve the holding charge by depressing the Schrader valve located in the end of the liquid line. Remove the liquid line fitting using 3/4"... -
Page 5: Piping Connections
550.38-N1Y Ensure the bulb is making maximum contact. Refer to TXV installation instruction for view of bulb location. The evaporator coil is under 30 psig pressure. After holding charge is completely discharged, loosen and remove the liquid line fitting from the orifice distributor In all cases, mount the TXV bulb after vapor line is assembly. -
Page 6: Precautions During Brazing Of Lines
550.38-N1Y The vapor line must be insulated with a minimum of 1/2" foam rubber insulation (Arm-A-Flex or equivalent). Liquid lines that will be exposed to direct sunlight and/or high temperatures must also be insulated. Dry nitrogen should always be supplied through the Tape and suspend the refrigerant lines as shown. - Page 7 550.38-N1Y Replace the schrader cores in the liquid and vapor valves. Evacuate the vapor line, evaporator and the liquid line, to 500 microns or less. Leak test all refrigerant piping connections including the service port flare caps to be sure they are leak tight. DO NOT OVERTIGHTEN (between 40 and 60 inch - lbs.
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Page 8: General Information & Grounding
550.38-N1Y ate the system down to at least 500 microns to eliminate POWER CONTROL contamination and moisture in the system. WIRING WIRING LOW VOLTAGE JUNCTION BOX GROUND Never attempt to repair any brazed connections while the system is under pressure. Personal injury could result. -
Page 9: Measurement Method
550.38-N1Y The “TOTAL SYSTEM CHARGE” must be permanently Operate system until temperatures and pressures stabi- stamped on the unit data plate. lize (minimum of 10 minutes). Measure and record indoor wet bulb (WB) temperature Total system charge is determined as follows: using a sling psychrometer and the outdoor dry bulb (DB) temperature using a thermometer. - Page 10 550.38-N1Y GROUND. FIGURE 8 : TYPICAL SINGLE PHASE FIELD WIRING FIGURE 9 : TYPICAL THREE PHASE FIELD WIRING Unitary Products Group...
- Page 11 550.38-N1Y FIGURE 10 : TYPICAL FIELD WIRING - AIR HANDLER (H*DB076 & H*DA076 ONLY) ALL FIELD WIRING TO BE IN ACCORDANCE WITH NATIONAL ELECTRICAL CODE (NEC) AND/OR LOCAL CODES POWER WIRING POWER 208/230-3-60 460-3-60 CONTROL FACTORY 380/415-3-50 575-3-60 FURNACE TERMINAL BLOCK 24 VOLT CONTROL WIRING...
- Page 12 550.38-N1Y Table 1: SUPERHEAT VALUE OUTDOOR DB°F INDOOR WB °F Evaporator Entering Air °F Table 2: TEMPERATURE AND PRESSURE SUCTION SUCTION SERVICE VALVE SUPERHEAT °F PRESSURE PSIG ERVICE 61.5 64.2 67.1 70.0 73.0 76.0 79.2 82.4 Saturation Temperature Table 3: R-22 SATURATION PROPERTIES PRESSURE PRESSURE PRESSURE...
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Page 13: System Controller - Hdb076 Only
550.38-N1Y SYSTEM CONTROLLER - HDB076 ONLY INDICATIONS OF PROPER OPERATION Controls operation as follows: Cooling operation is the same as any conventional air condi- tioning unit. RANDOM START - Upon initial application of power and a 2.5 second time delay, the compressor contactor will The following checks may be made to determine if the sys- be energized. - Page 14 550.38-N1Y NOTES: Unitary Products Group...
- Page 15 550.38-N1Y NOTES: Unitary Products Group...
- Page 16 550.38-N1Y NOTES: Heating and Air Conditioning Unitary Products Group 5005 York Drive, Norman, Oklahoma 73069 Subject to change without notice. Printed in U.S.A. Copyright © by Unitary Products Group 1999. All rights reserved. Supersedes: 550.38-N1Y (899) 550.38-N1Y (999)