2 thermostat and connections, Table 26- motor amps – Reznor CAUA Unit Installation Manual User Manual

Page 35

Form I-CAUA, P/N 164771 R8, Page 35

TABLE 26- Motor Amps

Full Load Amps (per motor) - Blower Motors

1/3

1/2

3/4

1-1/2

Direct Drive Motors

208/230V 1 PH

6.3

Optional Belt Drive OPEN Motor

208V 1PH

3.0

5.1

5.5

7.5

7.8

12.3

13.7

28.0

230V 1PH

3.0

4.4

5.4

6.5

7.5

12.3

12.4

26.0

208V 3PH

1.9

2.5

2.9

3.4

5.6

7.0

9.0

13.4

230V 3PH

1.6

3.0

2.6

3.7

5.0

6.6

8.6

13.2

480V 3PH

0.8

1.5

1.3

2.0

2.8

3.5

4.3

6.6

575V 3PH

0.9

1.0

1.4

2.0

2.6

3.6

5.4

Optional Belt Drive TEFC Motor

208V 1PH

2.3

3.5

5.4

6.2

9.5

230V 1PH

2.4

3.6

5.5

6.0

8.2

8.3

15.0

20.2

208V 3PH

1.2

2.3

2.0

3.3

4.8

6.1

7.7

12.6

230V 3PH

1.2

2.0

2.2

3.1

4.6

5.6

7.0

11.4

480V 3PH

0.6

1.0

1.1

1.6

2.3

2.8

3.5

5.7

575V 3PH

0.7

0.8

1.4

1.7

2.2

2.9

4.7

CAUTION: An

external duct

system static

pressure not within

the limits shown

on the rating plate,

or improper motor

pulley or belt

adjustment, may

overload the motor

or cause the limit

control to activate.

See Hazard Levels,

page 2.

The electrical supply and control wiring enter at the top of the heater (See

FIGURE 1,

page 5) and connect to the supply voltage terminal strip located above the contactor(s)

or starter(s) (See

FIGURE 28).

Consult the wiring diagram supplied with your heater.

CAUTION: If any of the original wire as supplied with the appliance must be replaced,

it must be replaced with wiring material having a temperature rating of at least 105°C,

except for sensor lead wires which must be 150°C. See Hazard Levels, page 2.

The amps listed in

TABLE 26 can be used for sizing line wiring but should not be inter-

preted as the exact motor amps. See the motor rating plate for exact motor specifica-

tions. At final adjustment, amperes should not exceed motor nameplate amp rating.

The installation must be adjusted to obtain a temperature rise within the range speci-

fied on the heater rating plate.

7.2 Thermostat and

Connections

A thermostat is not standard equipment but is an installation requirement. Use either

an optional thermostat available with the heater or a field-supplied 24-volt thermostat.

Install according to the thermostat manufacturer's instructions. Control wiring enters

on the right side of the heater and connects to the terminal strip in the control compart-

ment; see

FIGURE 30, page 38.

Make sure that the heat anticipator setting on the thermostat is in accordance with the

amperage value noted on the wiring diagram of your heater.

For cooling unit connections, refer to the wiring diagram or the cased cooling coil instal-

lation instructions, Form I-CAUA-CC. Follow the thermostat manufacturer's instruc-

tions.

TWO ST

AGE HEA

T/COOL

THERMOST

AT W/F

AN SWITCH

AUX

TERMINAL

STRIP

TERMINAL

STRIP

TERMINAL

STRIP

CL33

CL52

CL22

SINGLE ST

AGE THERMOST

TERMINAL STRIP

CL1

SINGLE ST

AGE PROGRAMMABLE THERMOST

TWO ST

AGE PROGRAMMABLE THERMOST

FIGURE 29A -

Wiring Connections

for Option CL1, CL22,

CL52, and CL33

Thermostats