York H*DB012 - 76 Installation Instructions Manual Download Page 14 | Manualshive

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550.38-N1Y

14

Unitary Products Group

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Summary of Contents for H*DB012 - 76

Page 1: ...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 H...

Page 2: ...ler or furnace and other accessories Read all instructions before installing the unit Installer should pay particular attention to the words NOTE CAUTION and WARNING NOTES are intended to clarify or m...

Page 3: ...t is placed directly under windows of certain rooms bed rooms study etc ROOF INSTALLATION When installing units on a roof the structure must be capable of supporting the total weight of the unit inclu...

Page 4: ...ates from entering the coil If the orifice cannot be replaced and the coil resealed within 2 minutes then it should be temporarily closed to air using masking tape short term delay or plugging cap pin...

Page 5: ...rtical bulb installations the bulb should be positioned with the bulb tail at the top so that the bulb acts as a reservoir c Bulb should be insulated using thermal insulation provided to protect it fr...

Page 6: ...be taken to prevent heat damage to angle valve by wrapping a wet rag around it as shown in Fig ure 6 Also protect all painted surfaces and insulation during brazing After brazing cool joint with wet...

Page 7: ...unger cap and with an allen wrench back out counter clockwise until valve stem just touches retaining ring Release the refrigerant charge into the system See PRECAUTIONS DURING BRAZING ANGLE VALVE on...

Page 8: ...cal box cover 3 All field wiring to be in accordance with national electrical codes NEC and or local city codes NOTE A Start Assist Kit is available and recommended for long line set applications or i...

Page 9: ...er and the outdoor dry bulb DB temperature using a thermometer 3 Measure and record the suction pressure at the suction service valve port 4 Using Table 1 on page 12 note the superheat value cor respo...

Page 10: ...S T B E W E A T H E R P R O O F 2 4 V O L T C O N T R O L W I R I N G M i n i m u m 1 8 G A W i r e N E C C l a s s 2 GROUND LUG C Y R G W W G R Y C O N T A C T O R T E R M I N A L S F U R N A C E O...

Page 11: ...6 0 R E D G R O U N D S C R E W A L L F I E L D W I R I N G T O B E I N A C C O R D A N C E W I T H N A T I O N A L E L E C T R I C A L C O D E N E C A N D O R L O C A L C O D E S L 1 L 2 L 3 A L L O...

Page 12: ...1 63 63 67 69 71 73 75 77 76 0 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 79 2 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 82 4 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81...

Page 13: ...t the migration of refrigerant to the compressor during the OFF cycle The heater is energized only when the unit is not running If the main switch is disconnected for long periods of shut down do not...

Page 14: ...550 38 N1Y 14 Unitary Products Group NOTES...

Page 15: ...550 38 N1Y Unitary Products Group 15 NOTES...

Page 16: ...nditioning 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...

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