White Rodgers 70 Series dimensions Universal Multi-Stage Heat Pump, 1F73-174, Comfort-Set

Universal

Multi-Stage/

Heat Pump

Digital

Non-Programmable

Hardwired

Programming/Set-up

Choice of Multi-Stage or ￿

Heat Pump operation

Display

Large LCD with improved contrast for easier reading

Comfort & Convenience

Automatic changeover

Soft-touch keypad

Maintains room temperature differential ￿ within 1 degree

Display temperature recalibration (+/- 3°)

Comfort-Set®

70 Series™

E C O N O M Y

Performance

Multi-Stage (2-stage heat, 2-stage cool) Heat Pump (2-stage heat, 1-stage cool)

Fast (FA) or slow (SL) heating cycle anticipation B or O terminal (selectable)

Compressor lockout protection (optional)

Replaces most mechanical 2-stage heat/2-stage cool ￿ or 2-stage heat/1-stage cool heat pump thermostats

Mechanical Thermostat Upgrade Cross-Reference

Terminal Designations

		R	C	W	W2	G	Y	Y2	O/B
24V Hot	24V		Heat		Heat	Blower/Fan		Cool		Cool	Reversing
			Relay*		Relay			Relay		Relay**
	Common										Valve***
			(Stg. 1)		(Stg. 2)			(Stg. 1)		(Stg. 2)

*E terminal in Heat Pump Mode **Multi-Stage Mode

***Heat Pump Mode

Brand	Model	Subbase
General Electric	3AAT8XXX
Honeywell	T874A,B,C,D,N,R	Q674A,B,C,E,J,L*
	Y594G,H,R
	T841A
White-Rodgers	1C70*
	1C72*
	1C73*
	1C74*
	1F58

*1F73-174 is hardwired and requires 24V "hot" and "common"

Dimensions￿

5.1"W x 3.7"H x 1.1"D

Electrical Specifications￿

Rating￿

20 to 30 VAC, 50/60 Hz or DC

0.05 to 1.0 Amp (load per terminal)

1.5Amps maximum load (all terminals combined)

Standard Systems

Multi-Stage ￿

(2-stage heat, 2-stage cool)

Thermal Specifications￿

Setpoint Temperature Range: 45° to 90°F ￿ (7° to 32°C)

Rated Differential: 0.6° to 1.6°F with adjustable anticipation

Operating Ambient Temperature: 32° to 105°F (0° to 40°C)

Operating Humidity Range: 90%￿ non-condensing max

Shipping Temperature Range: -4° to 150°F ￿ (-20° to 65°C)

Accessories￿

Wall Plate F61-2510 (6.5"W x 4.5"H)

Thermostat Guard F29-0231￿

(For additional guard options refer to White-Rodgers catalog.)

For Additional Information ￿

Visit www.white-rodgers.com

1F73-174

Heat Pump ￿	Multi-Stage/Heat Pump
(2-stage heat, 1-stage cool)	Non-Programmable
	Pro-Spec #70dØw

Pro-Spec Legend

Series System Programs Power Source

90 - Premium

80 - Standard

70 - Economy

s - Single Stage

m- Multi-Stage

h- Heat Pump

d- Dual (heat pump/multi-stage)

7 - 7 day

3 - 5/1/1 day

2 - 5/2 day

Ø- Non-programmable

p - Power stealing w/battery back-up￿wb - Hardwired/battery￿

b - Battery￿ w- Hardwired

Controlling Indoor Comfort Worldwide￿

Since 1937

St. Louis, Missouri	Markham, Ontario
314-577-1300	905-201-4701

www.white-rodgers.com

WR-7384

The Emerson logo is a trademark and￿ a service mark of Emerson Electric Co.