White Rodgers 1F85-277 Instrukcja Naprawy Pobierz pdf (Strona 94)

16E09-101 OPTION SWITCH

SETTING AND WIRINGTECH HELP INDEX

Wiring Instruction Notes

Switch Settings

COOL

HEAT

SW1

COOL

HEAT

SW1

Circuit Board

Inside Cover

Switch SW1 must be set for system mode as shown:

SW1

Refrigeration Cool

Heating Heat

Switch SW2 must be set for applications as shown:

SW2

Line Voltage (Power Stealing) PS

Line Voltage (Non Power Stealing) Non PS

24 VAC (Non Power Stealing) Non PS

Power Stealing

Power Stealing is an electronic design within the control that

can eliminate the need to connect a neutral line to power the

control. The control receives power from the unit it is control-

ling. Power Stealing saves time and money by often eliminat-

ing the labor to run a neutral wire to the control for power.

See compatibility chart below for certain limitations.

Power Stealing Compatibility Chart

Application

Power

Stealing

Non-Power

Stealing

Line Voltage, replacing existing control that

has a common wire

Yes Yes

Line Voltage, with load greater than 2.5

amps, without Defrost timer or other power

interruption circuit, with or without alarm

Yes Yes

Line Voltage, with load greater than 2.5

amps, with Defrost timer of other power

interruption circuit, no alarm

See

Note 1

Yes

Line Voltage with load greater than 2.5

amps, with Defrost timer or other power

Interruption circuit, with alarm

No Yes

Line Voltage with load less than 2.5 amps No Yes

24 VAC Application No Yes

NOTE 1: During defrost or time when load circuit is broke,

display will be blank because power has been

interrupted to the control. All menu settings and

setpoint will be restored when power is returned.

* NTC – Negative Temperature Coefﬁcient

PTC – Positive Temperature Coefﬁcient

NOTE: Only one sensor (PTC or NTC) may be connected.

Sensor must meet speciﬁc temperature vs. resistance

speciﬁcations.

Fig. 4 Line Voltage Application

(Non-Power Stealing)

SW2

 

 

 

S





2  

 

Binary Input

(Gold Plated

Contacts)

NTC*

Temperature

Sensor

PTC*

Temperature

Sensor

2  

 





2

22

 

 



 

S

Alarm Output

For optional connection

to customer alarm equipment

24 VAC (Block not used)

TH - Thermostat Hot

TR - Thermostat Return

Fig. 5 24 VAC Applications

(Non-Power Stealing)

SW2

 

 

 

S

Binary Input

(Gold Plated

Contacts)

Note: Do not use Output

Relay to control Line Voltage

when using 24 VAC Power

NTC*

Temperature

Sensor

PTC*

Temperature

Sensor





2  

 

 

S

Alarm Output

For optional connection

to customer alarm equipment

24 VAC

TH - Thermostat Hot

TR - Thermostat Return

NC contact

operates opposite

of load contact

PTC

BIN

GND

ALARM

NTC



P

N N

P

NT

LIN

LAD

 A C

T TR

Alarm Output

For optional connection

to customer alarm equipment

Binary Input

(Gold Plated

Contacts)

24 VAC (Block not used)

TH - Thermostat Hot

TR - Thermostat Return

NTC*

Temperature

Sensor

PTC*

Temperature

Sensor

Fig. 3 Line Voltage Application

(Power Stealing)

 A C

 

N

L



A C

 I

Load

(See "Special Note"

in "Operation Section"

for Alarm)

Model (s) Description Page(s)

16E09-101 ............................................................................................ Wiring and Operation ..................................................... 212– 221

COOLING / REFRIGERATION

TECHNICAL HELP

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