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Split System Heat Pumps

Installation Instructions

5

3’ 7”

1092mm

10’ 0”

3048mm

10’ 0”

3048mm

Spreader

Bars

Figure 2

NOTICE TO RIGGERS

All Panels Must Be In Place When

Rigging

NOTICE TO RIGGERS: Rig by inseting hooks into unit

base rails as shown. Maintain a distance of 120 inch-

es (3048mm) from top of unit to eyehook. Use corner

post or top board from packaging to protect coil of unit

from damage by rigging cable. Use bumper boards for

spreader bars.

Installing Refrigerant Lines

Complete Refrigerant Piping

Connections

Refrigerant lines must be carefully designed and

constructed to ensure equipment reliability and efficiency.

Line length, pressure drop, compressor oil return, and

vertical separation are several of the design criteria that

must be evaluated. See Table 1.

IMPORTANT: Piping must be properly sized and

installed for the system to operate efficiently.

CHECK VERTICAL SEPARATION -- If there is any vertical

separation between the indoor and outdoor units, check to

ensure that the separation is within allowable limits.

Relocate equipment if necessary. See Table 2.

SIZE REFRIGERANT LINES -- Consider the length of the

piping required between the outdoor and indoor units. The

maximum allowable line length is 100 ft (30.5 m). See Table

1. Refrigerant suction piping should be insulated.

Carefully evaluate any vapor risers at minimum load

conditions to ensure proper compressor oil return. If the

indoor 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 construct a double riser if necessary.

Table 1 - Refrigerant Piping Sizes

Unit

Linear Length of Interconnecting Piping -- Ft. (mm)

0 -- 25

(0 -- 7.5)

25 -- 60

(7.5 -- 18)

61 -- 100

(18.3 -- 30 )

Maximum

Liquid Line

Line Size (in. OD)

L

S

L

S

L

S

3/4

CHS180

5/8

1--5/8

3/4

1--5/8

3/4

1--5/8

LEGEND

L -- Liquid Line, S -- Suction Line

*Maximum length of interconnecting pipe is 100 ft (30.5 m).

NOTES:

1. Pipe sizes are based on a 2

°

F (1

°

C) loss for liquid

and suction lines.

2. Pipe sizes are based on the maximum linear length,

shown for each column, plus a 50% allowance for

fittings.

3. Charge units with R--22 in accordance with unit

installation instructions.

4. Maximum line length must not exceed 100 ft

(30.5 m).

Table 2 - Max. Vertical Separation Between Indoor & Outdoor Units

Unit

Unit Evap.

Distance ft (m)

Above Unit Evap.

CHS180

BHC180

80 (24.4)

INSTALL

FILTER

DRIER(S)

AND

MOISTURE

INDICATOR(S) -- Every unit should have a filter drier and

liquid--moisture indicator (sight glass). In some

applications, depending on space and convenience

requirements, it may be desirable to install 2 filter driers

and sight glasses. One filter drier and sight glass may be

installed at A locations in Fig. 3. Or, 2 filter driers and sight

glasses may be installed at B locations.

Select the filter drier for maximum unit capacity and

minimum pressure drop. Complete the refrigerant piping

from indoor unit to outdoor unit before opening the liquid

and suction lines at the outdoor unit.

Содержание CHS180

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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

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

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

Страница 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...

Страница 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...

Страница 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...

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

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

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