Emerson 1F85U-22PR Instruction Manual

Emerson 1F85U-22PR (Programmable) Installation and Operating Instructions

80 SeriesTM Universal Thermostat Battery Powered or Hardwired with Common

Emerson 1F85U-22PR SPECIFICATIONS

Electrical Rating:
Battery Power................................... mV to 30 VAC, NEC Class II, 50/60 Hz
Input-Hardwire................................... 20 to 30 VAC, NEC Class II, 50/60 Hz
Terminal Load................................... 1.5 A per terminal, 2.5A maximum all terminals combined
Setpoint Range................................. 45° to 99° F (7° to 37° C)
Rated Differentials (@ 6°F/ Hr): Fast Med Slow
Heat (Conventional Gas / Oil / Elect)... 0.5°F 0.75°F 1.9°F
Cool (Central Air)............................... 0.9°F 1.2°F 1.7°F
Heat Pump (Heat and Cool) ............... 0.9°F 1.2°F 1.7°F
Heat Pump Aux................................. 0.5°F 0.75°F 1.9°F
Operating Ambient............................. 32°F to +105°F (0° to +41°C)
Display Temperature Range................ 32°F to +99°F (0 to 37°C)
Operating Humidity............................ 90% non-condensing maximum
Shipping Temperature Range............. -20°F to + 150°F (-29° to +65°C)
Thermostat Dimensions..................... 3-3/4” H x 6” W x 1-1/8” D

Emerson 1F85U-22PR THERMOSTAT OVERVIEW

Before you begin using your thermostat, you should be familiar with its features, display and the location/operation of the thermostat buttons and switches.

THERMOSTAT BUTTONS AND SWITCHES	THE DISPLAY
1.) Fan Button	8.) Next (Menu button) is used to navigate within a menu
2.) Hold a permanent temperature or press again to cancel hold (return to programmed schedule)	9.) Set the correct time, access the schedule and customize thermostat settings
3.) System Button	10.) Back (Fan button) is used to navigate within a menu
4.) Backlight Button (located on the top of the thermostat)	11.) Exit (Hold/Run button) returns to the home screen
5.) Raises Temperature Setting	12.) Thermostat is protecting the equipment from short cycling (5-minute delay)
6.) Access Menu Options	13.) Indicates that the system is running in Cool, Heat or Auxiliary mode. (Heat Pump Only -The auxiliary will run in Heat mode when the heat pump cannot maintain the set temperature.)
7.) Lowers Temperature Setting	14.) SEE TROUBLESHOOTING
	15.) Battery status indicator
	16.) Replace battery indicator
	17.) Day of the week used when programming a schedule
	18.) Permanent hold (bypassing the schedule)
	19.) Temperature setpoint
	20.) Appears when the keypad is locked (to prevent unwanted changes)

Emerson 1F85U-22PR THERMOSTAT WIRING INSTALLATION

Refer to equipment manufacturer’s instructions for specific system wiring information. After wiring, see INSTALLER MENU for proper thermostat configuration. Wiring table shown are for typical systems and describe the thermostat terminal functions. Wiring will change when dedicated emergency heat is on (See Installer Menu #15).

Terminal Designations	Terminal Function
RC	Power (24V) - Cooling
RH	Power (24V) - Heating
O/B 6 (not shown) - 3 wire zone valve	Reversing Valve or output for 3 wire zone valves Configurable as “O” or “B” Reversing Valve or 3 wire zone heat (power close)
Y	1st Stage Compressor (conventional or heat pump)
G	Fan Relay
W/E	1st Stage Heat (conventional); 1st Stage Auxiliary Heat (heat pump) Can operate as Emergency Heat only (See Installer Menu #15)
C	Common wire for 24V (optional with batteries)
L	Heat Pump Malfunction / Diagnostic terminal (input signal requires common)
Y2	2nd Stage compressor (conventional only)
W2	2nd Stage Heat (Conventional) Can operate as 1st Stage Auxiliary Heat (See Installer Menu #15)

Precautions

Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes and ordinances.
This control is a precision instrument, and should be handled carefully. Rough handling or distorting components could cause the control to malfunction.

Emerson 1F85U-22PR THERMOSTAT INSTALLER MENU

To prevent changes that may affect system performance, this thermostat has an INSTALLER MENU and a USER MENU. The INSTALLER MENU provides access to every option, while the USER MENU provides access to items that will not affect system performance. To access the INSTALLER MENU press the Menu button for 8 seconds. The display will show item 05 in the table below. Use Next and Back to navigate through menu items. Press or to change a menu setting.

Installer Menu # (Hold Menu 8 Seconds)	Description	Default Setting (flashing icons)	Settings (Press UP or DOWN)
05	Outdoor Equipment: selects air conditioner (AC) or heat pump (HP) equipment as well as the number of stage	AC2	AC0 AC1 AC2 HP1
10	Indoor Equipment: selects whether the equipment is a gas furnace, elec- tric furnace or fan only	EL2	FAN GA1 GA2 (conventional only) EL1 EL2 (conventional only)
15	Dedicated Emergency: W/E only operates in Emergency Aux mode. W2 becomes 1st stage Aux. Heat	OFF	On OFF
20	O,B or 3 Wire Zone Valve Selection	O	O B 3
30	Heat Cycle Rate: how often the heat will turn on	MEd	SLO – slow MEd – medium FAS – fast
32	Aux Cycle Rate: how often the auxiliary heat will turn on	MEd	SLO – slow MEd – medium FAS – fast
35	Cool Cycle Rate: how often the cooling will turn on	MEd	SLO – slow MEd – medium FAS – fast
50	Compressor Lockout: protects the compressor from short cycling	OFF	On – 5 minute delay OFF – no delay
65	Max Heat Limit: maximum set point for heat mode	99	47 to 99
66	Minimum Cool Limit: minimum set point for cool mode	45	45 to 97

INSTALLER MENU (C0ntinued)

Installer’s Menu # (Hold Menu 8 Seconds)	Description	Default Setting (flashing icons)	Settings (Press UP or DOWN)
74	Schedule Type: set as either 7-Day, 5-1-1 Day or Non-Programmable	5	7 – 7 Day 5 – 5-1-1 Day 0 – Non Programmable
75	Defines periods per day	4	2 -leave, return 4 -wake, leave, return, sleep
76	Early Start: starts heating or cooling early so your programmed temperature is reached by the programmed time	OFF	On – start early OFF – start at program period time
79	Fahrenheit or Celsius	°F	°F – Fahrenheit °C – Celsius
81	Temperature Display Adjustment: adjust the displayed “Room Temperature”	0	-5 to +5
83	Continuous Display Light: keep the backlight always on – “C” wire required	OFF	On – always on OFF – momentarily
86	Change Air Filter: set up a monthly reminder	OFF	1 to 12 – reminder time (months) OFF – no filter reminder
88	Auto Changeover: thermostat automatically switches between heat and cool	OFF	On – enable auto OFF – disable auto
99	Keypad Lock: prevent unwanted changes to the thermostat	OFF	On – disable buttons OFF – all buttons are active

Emerson 1F85U-22PR TEST EQUIPMENT Turn on power to the system.

Fan Operation
If your system does not have a G terminal connection, skip to Heating System.

Title	: Emerson 1F85U-22PR Instruction Manual PDF
Format	: PDF
Pages	: 267 Pages
Language	: English
File Size	: 2 MB