ICP CHS180, Installation, Start-Up And Service Instructions Manual

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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.