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Carrier COMFORT SERIES 25HCB3, Installation Instructions Manual

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Carrier COMFORT SERIES 25HCB3 Installation Instructions Manual Download Page 8

8

Copyright 2010 Carrier Corp.

S

7310 W. Morris St.

S

Indianapolis, IN 46231

Printed in U.S.A.

Edition Date: 01/10

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Catalog No: 25HCB---C---3SI

Replaces: 25HCB3--- 5--- 2SI

25H

C

B

3

/25H

C

C

5

Summary of Contents for COMFORT SERIES 25HCB3

Page 1: ...isconnect switch must be in the OFF position There may be more than 1 disconnect switch Lock out and tag switch with a suitable warning label CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing and gloves when handling parts CAUTION INSTALLATION RECOMMENDATIONS NOTE In some cases n...

Page 2: ...LOCATIONS in mm A B C 26 X 26 660 X 660 9 1 8 231 8 4 7 16 112 7 21 1 4 539 8 31 1 2 X 31 1 2 800 X 800 9 1 8 231 8 6 9 16 166 7 24 11 16 627 1 35 X 35 889 X 889 9 1 8 231 8 6 9 16 166 7 28 7 16 722 3 A05177 Fig 2 Tiedown Knockout Locations Operating Ambient The minimum outdoor operating ambient in cooling mode without accessory is 55 F 12 78 C and the maximum outdoor operating ambient in cooling ...

Page 3: ...e leaving the piston and piston retainer inside the valve Connect sweat flare adapter provided to valve See Fig 4 Connect refrigerant tubing to fittings on outdoor unit vapor and liquid service valves Service valves are closed from factory and ready for brazing After wrapping service valve with a wet cloth tubing set can be brazed to service valve using either silver bearing or non silver bearing ...

Page 4: ...tion 440 14 of NEC Route Ground and Power Wires Remove access panel to gain access to unit wiring Extend wires from disconnect through power wiring hole provided and into unit control box Connect Ground and Power Wires Connect ground wire to ground connection in control box for safety Connect power wiring to contactor as shown in Fig 7 WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning...

Page 5: ...WIRING 24 V FIELD WIRING FIELD SPLICE CONNECTION OUTDOOR THERMOSTAT EMERGENCY HEAT RELAY SUPPLEMENTAL HEAT RELAY SHR EHR ODT A02325 A97413 Fig 8 Generic Wiring Diagrams See Thermostat Installation Instructions for specific unit combinations Sequence of Operation NOTE Defrost control board is equipped with 5 minute lockout timer that is initiated upon any interruption of power Turn on power to indo...

Page 6: ... charge conditions must be favorable for subcooling charging Favorable conditions exist when the outdoor temperature is between 70_F and 100_F 21 11_C and 37 78_C and the indoor temperature is between 70_F and 80_F 21 11_C and 26 67_C Follow the procedure below Unit is factory charged for 15ft 4 57 m of lineset Adjust charge by adding or removing 0 6 oz ft 018 kg m of 3 8 liquid line above or belo...

Page 7: ...ers with rated working pressures less than 600 psig S Do not leave Puron suction line filter driers in line longer than 72 hours S Do not install a suction line filter drier in liquid line S POE oils absorb moisture rapidly Do not expose oil to atmosphere S POE oils may cause damage to certain plastics and roofing materials S Wrap all filter driers and service valves with wet cloth when brazing S ...

Page 8: ...is St S Indianapolis IN 46231 Printed in U S A Edition Date 01 10 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No 25HCB C 3SI Replaces 25HCB3 5 2SI 25HCB3 25HCC5 ...

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