428 03 9702 00 2/3/2015Specifications subject to change without notice.

WIRING DIAGRAM MANUALSplit System Heat Pump

NH4H4

DANGER, WARNING, CAUTION, andNOTEThe signal words DANGER, WARNING, CAU-TION, and NOTE are used to identify levels of haz-ard seriousness. The signal word DANGER is onlyused on product labels to signify an immediate haz-ard. The signal words WARNING, CAUTION, andNOTE will be used on product labels and through-out this manual and other manuals that may applyto the product.

DANGER − Immediate hazards which will result insevere personal injury or death.

WARNING − Hazards or unsafe practices whichcould result in severe personal injury or death.

CAUTION − Hazards or unsafe practices whichmay result in minor personal injury or product orproperty damage.

NOTE − Used to highlight suggestions which willresult in enhanced installation, reliability, or opera-tion.

Signal Words in Manuals

The signal word WARNING is used throughout thismanual in the following manner:

The signal word CAUTION is used throughout thismanual in the following manner:

Signal Words on Product Labeling

Signal words are used in combination with colorsand/or pictures on product labels.

WARNING

Safety Labeling and Signal Words

!

! CAUTION

WARNING

TABLE OF CONTENTS340291−101 Wiring Diagram (1−phase) 2. . . . . . . . . . . . . . . . . .

341423−101 Wiring Diagram (208/230−3−60) 3. . . . . . . . . . . . .

341424−101 Wiring Diagram (460−3−60) 4. . . . . . . . . . . . . . . .

MODELS

1− PhaseWire Diagram

3− PhaseWire Diagram

340291−101 341423−101208/230−1−60 208/230−3−60NH4H418AKA NH4H436AHANH4H424AKA NH4H448AHANH4H430AKA NH4H460AHANH4H436AKA 341424−101NH4H448AKA 460−3−60NH4H460AKA NH4H436ALA

NH4H448ALA

NH4H460ALA

WARNING!DEATH, PERSONAL INJURY, AND/OR PROPERTYDAMAGE HAZARD

Failure to carefully read and follow this warningcould result in equipment malfunction, propertydamage, personal injury and/or death.

Installation or repairs made by unqualified per-sons could result in equipment malfunction, prop-erty damage, personal injury and/or death.

The information contained in this manual is in-tended for use by a qualified service technician fa-miliar with safety procedures and equipped withthe proper tools and test instruments.

Installation must conform with local buildingcodes and with the National Electrical CodeNFPA70 current edition or Canadian ElectricalCode Part 1 CSA C.22.1.

WIRING DIAGRAM MANUAL Split System Horizontal Heat Pump

2 428 03 9702 00Specifications subject to change without notice.

1−Phase 340291−101

WIRING DIAGRAM MANUAL Split System Horizontal Heat Pump

428 03 9702 00 3Specifications subject to change without notice.

3−Phase 341423−101 (H)

WIRING DIAGRAM MANUAL Split System Horizontal Heat Pump

4 428 03 9702 00Specifications subject to change without notice.

3−Phase 341424−101 (L)

Copyright 2015 International Comfort ProductsLewisburg, Tennessee 37091 USA