900590-UIM-B-0613
2
INSPECTION
As soon as a coil is received, it should be inspected for possible dam-
age during transit. If damage is evident, the extent of the damage
should be noted on the carrier’s delivery receipt. A separate request for
inspection by the carrier’s agent should be made in writing. See Local
Distributor for more information. Check drain pan for cracks or break-
age.
CLEARANCES
During Installation
Clearance must be provided for:
1. Refrigerant piping and connections
2. Maintenance and servicing access - including cleaning the coil
3. Condensate drain line
4. Filter removal / change
5. Removal of coil assembly
LIMITATIONS
These coils should be installed in accordance with all national and local
safety codes. Check Tables 2, 3, and 4 for operating limitations.
SECTION III: COIL METERING DEVICES
The coil will require a TXV to be installed in the field. Refer to installa-
tion manual with TXV kit. It is recommended to install the TXV kit prior
to installation of coil and brazing line sets.
TXV METERING DEVICE
Please refer to Tables 1 and 2 to verify proper and recommended line
set sizes and that this is a valid system match for the AC or HP unit
installed.
The temperature sensing bulb should be attached to the suction line
set. Refer to Figure 3.
FIGURE 2: Coil - HD
1-3/4
D
5-5/8
A
B
C
3-3/4
2-5/8
1-3/8
OPENING
FOR
VAPOR
CONN.
OPENING
FOR
LIQUID
CONN.
OPENING
FOR
3/4 NPT
SECONDARY
DRAIN CONN.
OPENING
FOR
3/4 NPT
PRIMARY
DRAIN CONN.
7/8
1-7/8
4-1/8
1-3/8
OUTLET SAME
SIZE AS INLET
(3/4” FLANGE)
TABLE 1:
Dimensions
Models
Dimensions
1
Refrigerant Connections
2
Height Width Opening Widths Line Size
ABCDLiquidVapor
HD24S 24 28-3/4 21-5/8 23-3/4
3/8
3/4
HD36S 28 28-3/4 25-5/8 23-3/4
7/8HD48S 28 34-3/4 25-5/8 29-3/4
HD60S 30 34-3/4 27-5/8 29-3/4
1. All dimensions are in inches.
2. Refrigerant line sizes may require larger lines for extended line lengths. See Application Data part number 247077.
TABLE 2:
Coil Air Flow Limits
Coil
Size
Outdoor Unit
Tons
CFM Limits
Minimum Maximum
24
1 350 450
1-1/2 525 675
2 700 900
36
2 700 900
2-1/2 875 1125
3 1050 1250
48
3 1050 1250
3-1/2 1225 1575
4 1400 1750
60
4 1400 1750
5 1750 2200
For models that have factory installed TXV’s, take caution not to apply
high temperatures to the TXV assembly or equalizer line while braz-
ing.
To Next Page
Loading...
Need help?
General
