Port-a-cool PAC2K163SHD User Manual download pdf (Page 16)

2007 PORT-A-COOL® Unit Electric Models

FAN MOTOR REPLACEMENT

Belt Drive Models (PAC2K361S, PAC2K363S, PAC2K482S)

1) DISCONNECT POWER and remove the pads as shown on page 15.

2) Motor is located in center of unit. Switchbox is located in upper left.

(Figure 1) Locate motor harness wire secured to fan bracket assembly using

plastic ties. Cut and remove plastic wire ties. DO NOT CUT ELECTRICAL

HARNESS WIRES.

3.) Remove switch box cover. (Figure 2) Unplug motor wire harness con-

nector. Push rubber grommet on motor wire harness through switch box

opening and remove motor harness from switch box.

4) Loosen four (4) bolts that secure the motor mounting plate. This will

allow the motor plate to move up or down. Loosen and remove the belt

from the motor pulley. (Figure 3)

5) On front of motor mount, remove belt pulley by loosening set-

screw. Remove four (4) lock nuts securing motor to mount. Remove

motor by sliding straight back out of mounting holes.

6) Install new motor by reversing steps above. (A.) Install new motor

into motor mount and install four (4) lock nuts to secure motor to mount,

but do not tighten. (B) Install motor pulley on motor shaft and align with

fan blade hub pulley. Install fan belt on fan blade pulley by sliding motor

plate away from the fan hub. Visually align the motor pulley and fan pul-

ley by using the belt as a reference. (C) Adjust the motor pulley in or out

to align. Tighten the motor pulley setscrew. (D) Apply pressure on the

motor to further tighten the belt being careful not to over tighten. (About

15 pounds of pressure is sufficient). Complete tightening of the four (4)

motor plate bolts. (E) Thread terminal end of motor wire through switch

box opening and plug connector into switch connector. PROPERLY

RESEAT RUBBER GROMMET SEAL ON HARNESS AT OPENING IN SWITCH

BOX TO KEEP WATER OUT OF CONTROL BOX. FAILURE TO DO SO

COULD CAUSE ELECTRICAL SHOCK. (E) Replace switch box cover. (F)

Secure motor wire harness to fan bracket assembly using new wire ties.

(G) Replace pads by installing from outside in toward center replacing

center pad first.

7) Reconnect the unit power and test motor.

FAN MOTOR REPLACEMENT

Direct Drive Models (PAC2K36HPVS, PAC2K24HPVS, PAC2K163S, PAC2K163SHD, PAC2K163SFC,

PAC2K16HPVS, PAC2K16HPVSFC)

1) DISCONNECT POWER and remove pads as shown on page 15.

2) Motor is located in center of unit. Switch box is located in upper left. Locate motor harness wire

(Figure 1) secured to fan bracket assembly using five plastic wire ties. Cut and remove plastic wire ties.

DO NOT CUT ELECTRICAL WIRES.

3) Remove switch box cover. Unplug motor harness wire connector. Push rubber grommet on motor wire

harness through switch box opening and remove motor harness wire from switch box. Disconnect motor har-

ness at the quick release connector. (Figure 2 NEXT PAGE)

4) Remove the screen from the front of the unit to access the fan side of the

unit.

5) Loosen the nut from the threaded motor shaft and take the fan blade off.

(Figure 3 NEXT PAGE)

6) Locate the 8 bolts (2 on each arm) holding the motor in place.

(NOTE: the position of the motor on the mounting arms. Make sure to mount

it in the correct railings of the motor housing and at the correct distance from

front or back on all four arms to ensure stability and alignment) (Figure 4

NEXT PAGE)

Figure 2

Figure 3

Figure 1

Port-A-Cool® unit

TEMPERATURE OUTPUT CHARACTERISTICS

70% TO 75% RELATIVE HUMIDITY

APPENDIX A

WET BULB TEMPERATURE

DRY BULB TEMPERATURE

TEMPERATURE DIFFERENCE

TEMPERATURE DROP

OUTPUT TEMPERATURE

Wet Bulb Temperature @ Current Humidity Level

Current Ambient Air Temperature

Dry Bulb Temp Minus Wet Bulb Temp

Temperature Difference Multiplied by 72%

Dry Bulb Temperature Minus Temperature Drop

DRY BULB

Temp. °C Temp. °F

21.1 70

23.9 75

26.7 80

29.4 85

32.2 90

35.0 95

TEMP. °F

Difference Drop

10 7.2

11 7.9

12 8.6

OUTPUT TEMP.

°C

°F

17.2 63

20.0 68

22.2 72

25.0 77

27.2

30.0 86

70% RH

DRY BULB

Temp. °C Temp. °F

18.3 65

21.1 70

23.9 75

26.7 80

29.4 85

32.2 90

TEMP. °F

Difference Drop

8 5.8

9 6.5

OUTPUT TEMP.

°C

°F

15.0 59

17.8 64

20.6 69

23.3 74

26.1

28.9 84

75% RH

A-4

1 2 ... 11 12 13 14 15 16 17 18 19 20

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Port-a-cool PAC2K163SHD User Manual Page 16

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