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# 48369K005

Page 9

Cooling System Performance

For maximum performance of the cooling system, operat-
ing temperatures and pressure should be checked.
Subcooling should be determined at Standard ARI test
conditions of 82°F outdoor and 80°F indoor dry bulb/67°F
wet bulb. If subcooling measured deviates from values
found in Table 4, refrigerant charge should be adjusted
accordingly for maximum performance.

Liquid Subcooling

Table 4

e

z

i

S

g

n

i

l

o

o

c

b

u

S

d

i

u

q

i

L

s

n

o

i

t

i

d

n

o

C

I

R

A

@

B

W

D

I

°

7

6

/

B

D

D

I

°

0

8

-

D

O

°

2

8

2

2

R

A

0

1

4

4

2

°

0

1

°

9

0

3

°

8

°

1

1

6

3

°

0

1

°

1

1

8

4

,

2

4

°

5

°

7

0

6

°

0

1

°

0

1

Summary of Contents for (2/4)SH13

Page 1: ...ion of this appliance must conform to the requirements of the National Fire Protection Association the National Electrical Code ANSI NFPA No 70 latest edition in the United States the Canadian Electri...

Page 2: ...es must also be observed The unit must not be installed with any ductwork in the outdoor air stream The outdoor fan is not designed to operate against any additional static pressure Location The unit...

Page 3: ...h a 3 4 FPT cou pling for condensate line connection Plumbing must conform to local codes Use a sealing compound on male pipe threads The condensate drain line must be properly trapped and routed to a...

Page 4: ...free from duct flange 3 Slide duct cover out the side duct opening Filters Air filters are to be used with this heating cooling unit Filters are not factory supplied in the unit However a filter frame...

Page 5: ...T OUTDOOR UNIT GROUND SCREW POWER WIRING 200 230 3 60 460 575 3 60 90 C MIN WIRE 24V CONTROL WIRING NEC CLASS 2 POWER WIRING TYPICAL WIRING CONNECTION 3 PHASE W1 W2 CAN BE USED TO STAGE ELECTRIC HEAT...

Page 6: ...test should be conducted with each appliance while the other appliances connected to the common venting system are not in operation 1 Seal any unused openings in the common venting system 2 Visually i...

Page 7: ...F or cooler the thermostat contacts close and send a signal to the defrost control board to start the defrost timing It also terminates defrost when the liquid line warms up to 70 F Defrost Control Th...

Page 8: ...optional can be connected to the HI PS terminals see Figure 8 on page 7 During a single demand cycle the defrost control will lock out the unit after the fifth time that the circuit is interrupted by...

Page 9: ...t conditions of 82 F outdoor and 80 F indoor dry bulb 67 F wet bulb If subcooling measured deviates from values found in Table 4 refrigerant charge should be adjusted accordingly for maximum performan...

Page 10: ...and outdoor fan and vent motors are permanently lubricated and require no maintenance Outdoor Coil Dirt and debris should not be allowed to accumulate on the outdoor coil surface or other parts in the...

Page 11: ...e Because the pressure switches are monitored only when Y1 Input is active the code for pressure switch open will not be seen when Y1 is off Instead the Normal Operation or Anti Short Cycle Lockout co...

Page 12: ...f and excludes all other warranties express or implied The warrantor does not authorize any person to provide any other warranty or to assume for it any further obligation in connection with the warra...

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