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OUTDOOR SPLIT-SYSTEM

AIR CONDITIONER 

MODELS:  3 PH, 10 AND 12 SEER

3 TO 7.5 TONS

035-15806-004 Rev. A (1000)

INSTALLATION 
INSTRUCTION

TABLE OF CONTENTS

GENERAL INFORMATION   . . . . . . . . . . . . . . . . . . .  2

INSPECTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2

REFERENCE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2

LIMITATIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2

INSTALLATION  . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

OUTDOOR UNIT  . . . . . . . . . . . . . . . . . . . . . . . . . . .  4

INDOOR UNITS  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4

REFRIGERANT LINE . . . . . . . . . . . . . . . . . . . . . . . .  4

INSULATION OF VAPOR LINE  . . . . . . . . . . . . . . . .  4

RE-ASSEMBLING, BRAZING AND 
CLEANING OF JOINT CONNECTIONS   . . . . . . . . .  5

REFRIGERANT LINE SUPPORT   . . . . . . . . . . . . . .  5

CHARGING AND LEAK TESTING . . . . . . . . . . . . . .  5

TOTAL LINE LENGTH  . . . . . . . . . . . . . . . . . . . . . . .  5

ORIFICE SELECTION  . . . . . . . . . . . . . . . . . . . . . . .  5

REFRIGERANT VALVE OPERATION  . . . . . . . . . . .  6

OIL TRAPPING   . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

SYSTEM CHARGE   . . . . . . . . . . . . . . . . . . . . . . . . .  9

CHECKOUT PROCEDURE  . . . . . . . . . . . . . . . . . . .  9

SYSTEM OPERATION CHECK-OUT   . . . . . . . . . . .  9

INSTALLER   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9

CAUTION: READ ALL SAFETY GUIDES 

BEFORE YOU START TO INSTALL 
YOUR FURNACE.

SAVE THIS MANUAL

Summary of Contents for 3 PH

Page 1: ...NIT 4 INDOOR UNITS 4 REFRIGERANT LINE 4 INSULATION OF VAPOR LINE 4 RE ASSEMBLING BRAZING AND CLEANING OF JOINT CONNECTIONS 5 REFRIGERANT LINE SUPPORT 5 CHARGING AND LEAK TESTING 5 TOTAL LINE LENGTH 5...

Page 2: ...any additional external static pressure The maximum and minimum conditions for operation must be observed to assure a system that will give maximum perfor mance with minimum service Check Electrical...

Page 3: ...ences standing off from the coil can reduce capacity loss due to wind chill effect Provide ample clearance from shrubs to allow adequate air to pass across the outdoor coil without leaves or branches...

Page 4: ...istance and fewest number of bends Determine the path that the refrigerant lines will follow Starting at either the indoor coil or the outdoor unit refrigerant line connections carefully measure cut d...

Page 5: ...tamination Contaminated refrigerant must be recovered and returned to the local refrigeration supply house for proper disposition TOTAL LINE LENGTH Units should be installed only with approved system...

Page 6: ...t include a disconnect switch located within sight of the outdoor unit 2 Use the correct size fuse or circuit breaker as listed on the unit rating plate and data sheet See Tabular Data Sheet for minim...

Page 7: ...3 or 4 2 Using wire nuts connect the low voltage wiring as shown in Figure 5 6 or 7 3 A minimum of 18 AWG wire gauge for total lengths not exceeding 130 feet must be used in connecting the low voltage...

Page 8: ...TACTOR 1 TERMINALS GND LUG R B Y O W R Y G AIR HANDLER TERMINAL BLOCK 4TB TYPICAL THERMOSTAT ALL OUTDOOR WIRING MUST BE WEATHERPROOF USE COPPER CONDUCTORS ONLY X 53 G 60 66 JUNCTION BOX RED BRN YEL OR...

Page 9: ...see that nothing was over looked Have all braze joints on refrigerant lines been leaked checked Have base valves been opened Have all refrigerant lines been secured and iso lated properly Is the indo...

Page 10: ...035 15806 004 Rev A 1000 10 Unitary Products Group NOTES...

Page 11: ...035 15806 004 Rev A 1000 Unitary Products Group 11...

Page 12: ...without notice Printed in U S A 035 15806 004 Rev A 1000 Copyright by York International Corp 2000 All rights reserved Supersedes 035 15806 403 REV A 550 46 N2Y 499 Unitary 5005 Norman Product York OK...

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