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Split System Heat Pumps

Installation Instructions

4

Rig and Mount the Unit:

REDUCED EQUIPMENT LIFE HAZARD

Failure to follow these precautions could result in

damage to the unit being installed.

Be sure unit panels are securely in place prior to rigging.

CAUTION

!

RIGGING -- See Figure 2. These units are designed for

overhead rigging. Refer to rigging label for preferred

rigging method. Spreader bars are not required if top

crating is left on unit. All panels must be in place when

rigging. As further protection for coil faces, plywood sheets

may be placed against sides of unit, behind cables. Run

cables to a central suspension point so that angle from the

horizontal is not less than 45 degrees. Raise and set unit

down carefully.

If it is necessary to roll the unit into position, mount the unit

on field--supplied rails placed lengthwise under the unit

using a minimum of 3 rollers. Apply force to the rails, not the

unit. If the unit is to be skidded into position, place it on a

large pad and drag it by the pad. Do not apply any force to

the unit.

Raise from above to lift unit from the rails or pad when unit

is in final position.

After unit in position, remove all shipping materials and top

crating.

NOTE: Before mounting unit, remove holddown brackets

and release skid. If conditions or local codes require unit to

be fastened to pad, use the mounting holes in the base

rails.

Clearances:

Locate unit so that outdoor coil (condenser) airflow is

unrestricted on all sides and above. See Figure 1 for unit

clearances, weight, and clearance data.

Unit Support:

The unit must be level, and supported above grade by

beams, platform or a pad. Platform or pad can be of open or

solid construction but should be of permanent materials

such as concrete, bricks, blocks, steel or pressure treated

timbers approved for ground contact. Refer to Unit

Clearances and weights to help determine size of supports

etc. Soil conditions should be considered so the platform or

pad does not shift or settle excessively and leave the unit

only partially supported.

REDUCED EQUIPMENT LIFE HAZARD

Failure to follow these precautions could result in

damage to the unit being installed.

Inadequate support could cause excessive vibration

and noise or binding and stress on refrigerant lines

resulting in equipment failure.

To minimize vibration or noise transmission, it is

recommended that supports not be in contact with the

building structure. However, slabs on grade construc-

tions with an extended pad are normally acceptable.

CAUTION

!

A. Ground Level Installation:

If beams or an open platform are used for support it is

recommended that the soil be treated or area be graveled

to retard the growth of grasses and weeds.

B. Roof Top Installation:

This type of installation is not recommended on wood

frame structures where low noise levels are required.
Supporting structure or platform for the unit must be level. If

installation is on a flat roof the unit should be 4 inches

(10cm.) above roof level. Four by four posts placed over a

load bearing wall make a suitable mounting platform.
If possible, place the unit over one or more load bearing

walls. If there are several units, mount them on platforms

that are self--supporting and span load bearing walls.

These suggestions are to minimize noise and vibration

transmission through the structure.

Summary of Contents for CHS180

Page 1: ...Save This Manual for Future Reference 506 01 2002 01 5 07 07 Installation Start Up and Service Instructions Models CHS180 Split System Heat Pump Three Phase 208 230 460 Volt...

Page 2: ...l after the unit is rigged into its final location REDUCED EQUIPMENT LIFE AND PERSONAL INJURY HAZARD mproper installation adjustment alteration service or maintenance can void the warranty The weight...

Page 3: ...risdictions may prevail Side compressor 3 1 2 ft 1067 mm Side opposidte compressor 3 ft 914 mm Ends 2 ft 616 mm Top 5 ft 1524 mm Support Point Unit Total Weight 1 2 3 4 CHS180 803 158 243 244 158 365...

Page 4: ...unit must be level and supported above grade by beams platform or a pad Platform or pad can be of open or solid construction but should be of permanent materials such as concrete bricks blocks steel...

Page 5: ...door unit is above the outdoor unit the riser will function as a hot gas riser If the outdoor unit is above the indoor unit the riser is a suction riser Use a reduced diameter riser design and constru...

Page 6: ...Failure to prevent collection of copper oxides may result in system component failures VAPOR LINE PIPING PROCEDURE Connect system vapor line to the vapor line stub on the outdoor unit and the vapor st...

Page 7: ...must be grounded N EXAMPLE Supply voltage is 460 3 60 AB 452 v BC 464 v AC 455 v 452 464 455 Average Voltage 3 1371 3 457 Determine maximum deviation from average voltage Maximum deviation is 7 v Dete...

Page 8: ...Split System Heat Pumps Installation Instructions 8 Fig 5 208 230 Volt Wiring Details...

Page 9: ...Split System Heat Pumps Installation Instructions 9 Fig 5 208 230 Volt Wiring Details Cont with control box CHS180H N A...

Page 10: ...Split System Heat Pumps Installation Instructions 10 Fig 6 460 Volt Wiring Details...

Page 11: ...Split System Heat Pumps Installation Instructions 11 Fig 6 460 Volt Wiring Details Cont with control box CHS180L N A...

Page 12: ...Split System Heat Pumps Installation Instructions 12 Fig 6 Auxiliary Box Diagram...

Page 13: ...START UNIT The field disconnect is closed the fan circuit breaker is closed and the space thermostat is set above ambient so that there is no demand for cooling Only the crankcase heater will be ener...

Page 14: ...compressor When TC2 closes demanding additional cooling the compressor loads to full load operation During heating compressor is always fully loaded When TH1 demands first stage heating the heat pump...

Page 15: ...es the cleaning and the maintenance of standard coils Routine cleaning of coil surfaces is essential to minimize contamination build up and remove harmful residue Inspect coils monthly and clean as re...

Page 16: ...Split System Heat Pumps Installation Instructions 16...

Page 17: ...Split System Heat Pumps Installation Instructions 17...

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