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 © 2022 Carrier. All rights reserved.

A Carrier Company 

Edition Date: 03/22

Catalog No: N4H7T-01SI

Replaces:New

N4H7T: Installation Instructions

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

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Summary of Contents for N4H7T

Page 1: ...opriate for unit capacity 3 Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends 4 Leave some slack between structure and unit to absorb vibration 5 When passing refri...

Page 2: ...pace for airflow clearance wiring refrigerant piping and service Allow 24 in 609 6 mm clearance to service end of unit and 48 in 1219 2 mm above unit For proper airflow a 6 in 152 4 mm clearance on 1...

Page 3: ...ton body of the liquid service valve temporarily held in place with a plastic cap Do not remove the plastic cap until line set tubing is ready to be installed Refer to Fig 4 and follow these steps for...

Page 4: ...h a heat sinking material such as a wet cloth Braze joints using a Sil Fos or Phos copper alloy Install Liquid Line Filter Drier Indoor Refer to Fig 6 and install filter drier as follows 1 Braze 5 in...

Page 5: ...readily accessible from unit per Section 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 a...

Page 6: ...at the Y2 signal is communicated via the cool tap to the desired speed tap 2 The Y1 call for low stage cooling energizes the Fan tap on the control board The red wire from the fan tap is connected to...

Page 7: ...5 minute time guard begins counting Compressor will not come on until this delay expires In the event of a power interruption the time guard will not allow another cycle for 5 minutes Compressor Opera...

Page 8: ...or 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...

Page 9: ...nit before adding panels and covers Securely fasten all panels and covers 3 Tighten service valve stem caps to 1 12 turn past finger tight 4 Leave Owner s Manual with owner Explain system operation an...

Page 10: ...ved A Carrier Company Edition Date 03 22 Catalog No N4H7T 01SI Replaces New N4H7T Installation Instructions Manufacturer reserves the right to change at any time specifications and designs without not...

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