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3
INSPECT UNIT — To prepare the unit for installation, com-
plete the procedures listed below:
1. Compare the electrical data on the unit nameplate with
ordering and shipping information to verify that the
correct unit has been shipped.
2. Do not remove the packaging until the unit is ready for
installation.
3. Verify that the unit’s refrigerant tubing is free of kinks or
dents, and that it does not touch other unit components.
4. Inspect all electrical connections. Be sure connections are
clean and tight at their terminations.
5. Loosen compressor bolts until the compressor rides freely
on springs. Remove shipping restraints.
6. Remove the shipping bolts from compressor support
plate to maximize vibration and sound alternation.
7. Remove any blower support cardboard from inlet of the
blower.
8. Locate and verify any accessory kit located in compressor
and/or blower section.
9. Remove any access panel screws that may be difficult to
remove once unit is installed.
Table 1 — Physical Data — 50PTH, PTV024-070 Units
LEGEND
CAUTION
Failure to remove shipping brackets from spring-mounted
compressors will cause excessive noise and could cause
component failure due to added vibration.
UNIT 50PTH, PTV
024
036
048
060
070
COMPRESSOR (1 each)
Scroll
REFRIGERANT CHARGE VERTICAL (oz)
58
98
88
110
114
REFRIGERATION CHARGE HORIZONTAL ONLY (oz)
64
85
77
100
114
MAXIMUM WATER WORKING PRESSURE (psig/kPa)
450/3,100
450/3,100
450/3,100
450/3,100
450/3,100
CONSTANT TORQUE - FAN MOTOR/BLOWER
Fan Motor Type/Speeds
Constant Torque / 5 speed
Fan Motor (Hp)
0.33
0.75
0.75
1.00
1.00
Blower Wheel Size (Dia x W) (in.)
10 x 8
11 x 9
11 x 9
11 x 11
11 x 11
ECM CONSTANT AIRFLOW - FAN MOTOR/BLOWER
Fan Motor Type/Speeds
ECM Constant airflow / 3 speed
Fan Motor (Hp)
0.33
0.75
0.75
1.00
1.00
Blower Wheel Size (Dia x W) (in.)
10 x 8
11 x 9
11 x 9
11 x 11
11 x 11
WATER CONNECTION SIZE
FPT (in.)
3
/
4
1
1
1
1
Coaxial Coil Volume (gal)
0.33
1.18
0.62
1.07
1.12
VERTICAL CABINET
Air Coil
Dimensions (H x W) (in.)
24 x 20
32 x 26
32 x 26
38 x 26
38 x 26
Nominal Size (in.) Standard Filter - 2-in. MERV11
(L x H) (qty)
24 x 24 (1)
16 x 30 (2)
16 x 30 (2)
20 x 30 (2)
20 x 30 (2)
Weight (lb)
Operating
250
360
340
410
440
Shipping
350
475
450
530
560
HORIZONTAL CABINET
Air Coil
Dimensions (H x W) (in.)
18 x 31.5
20 x 42
20 x 42
20 x 49
20 x 49
Nominal Size (in.) Standard Filter - 2-in. MERV11
(L x H) (qty)
18 x 18 (2)
20 x 24 (2)
20 x 24 (2)
18 x 20 (3)
18 x 20 (3)
Weight (lb)
Operating
260
375
355
430
460
Shipping
360
495
470
550
580
ECM —
Electronically Commutated Motor