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Read This Before Installing Thermostat IMPORTANT Read the entire installation section of this Owner’s Manual thoroughly before you begin to install or operate your Hunter Thermostat. • Remove the mylar label from the display window. 1 INSTALLATION All installation is normally performed at your thermostat. 2 PROGRAMMING You can practice programming before installing your thermostat by inserting and connecting the batteries and following the instructions on page 14.
BATTERY WARNING When the batteries are low, “LOW BATT” indicator on the display will flash. When this happens, install new batteries immediately. Once the “LOW BATT” indicator appears, the thermostat will continue to operate for approximately 30 days. (Only alkaline batteries should be used in your thermostat. Rechargeable batteries have different properties which may cause the thermostat to not operate properly. Do not use old batteries.) The batteries should last one year.
Features 6-7 M T W TH F SA SU 1234 HEAT COOL AM PM 88 : 88 88 FILTER LO BAT c Display shows time, day, temperature, program number, hold, usage and low battery indicator. SET TEMP HOLD TEMP Individual pushbuttons for raising or lowering temperature settings. Reset button for resetting computer back to 12:00 A.M. and clearing all programs. Manual switch for turning on heating and cooling system. Manual switch for automatic or continuous fan operation.
For entering minute of day. For entering day of week. For entering hour of day. For revising and changing weekday or weekend programs To reset filter counter back to zero. HOUR MIN DAY PROG AUTO PROGRAM HOLD CLEAR FILTER RESET 12/24 HRS RETURN Automatically programs the thermostat for weekday and weekend program settings. Changes the clock into 12 or 24 hour (military) mode. Returns display to current time and temperature. Provides permanent temperature setting by overriding stored programs.
This thermostat comes with two #8 slotted screws and two wall anchors for mounting. To install your unit, you should have the following tools and materials. ■ Slotted screwdriver ■ Hammer ■ Electric drill and 3/16" bit ■ Two 1.5 V (AA) Size Alkaline batteries CAUTION: Do not remove any wiring from existing thermostat before reading the instructions carefully. Wires must be labeled prior to removal.
TYPICAL HOME THERMOSTATS FIGURE 1 Wall Mounting Plate Thermostat Cover Wall Mounting Plate Thermostat Cover
Installation 10-11 ■ Each wire coming from the wall to the existing thermostat is connected to a terminal point on that thermostat. Each of these terminal points is usually marked with a code letter as shown in Table A on page 11. ■ The number of wires in your system can be as few as two (for heat only systems), as many as eight, or any number in between. If you follow the labeling procedures correctly, you do not have to be concerned about how many wires there are.
Wire Labeling RH G
Installation 12-13 Wire Labeling NOTE: If your thermostat has one wire marked R or RH (4-wire system), then leave the jumper wire between the RH and RC terminals. Otherwise, if you have separate RH and RC wires (5-wire system), then remove the jumper wire between the RH and RC terminals. NOTE: Do not connect a “Common” wire (sometimes labelled “C”) to any terminal on this thermostat. Tape up the wire and do not use. This wire provides electricity to nonbattery powered thermostats.
Mount Wallplate and Thermostat Snap open the wallplate from your thermostat by pressing the release tab on the bottom of the thermostat. Position wallplate on wall and pull existing wires through large opening. Then level for appearance. Mark holes for plastic anchors provided if existing holes do not line up with Hunter Thermostat holes. Drill holes with 3/16" bit and gently tap anchors into the holes until flush with wall. Reposition wallplate to wall, pulling wires through large opening.
Installation 14-15 Selector Switches The heating system selector and the F°/C° selector switches are located on the Printed Circuit Board. ■ Heating system selector The heating system selector is a switch on the Printed Circuit Board on the inside of the thermostat. The switch is at “HG” position. Leave it in this position if you have a gas furnace or an oil burner. If you have an electric furnace, test to see whether the heat and fan come on as expected. Leave the switch in the “HG” position.
■ Be sure to tighten the terminal screws securely, otherwise a loose wire could cause operational problems with your system or thermostat. ■ Push excess wire back into hole to prevent interference with mounting of the thermostat cover. ■ Make sure the Function Switch is set at OFF, and the FAN-AUTO Switch is in AUTO. ■ Insert the bottom tab on the thermostat body into the slot at the bottom of the wallplate. Press top of the thermostat body to snap it into the wallplate.
Programming 16-17 Remove mylar label covering display window. When the heating or cooling system is actually operating, “HEAT” or “COOL” will appear on the display. 1 2 3 4 If power is interrupted the batteries will keep all programs. If “LOW BATT” indicator appears on the display replace the batteries. Setting the Time and Day of Week When you first install the two AA batteries, the thermostat automatically sets the day and time to Monday, 12:00 a.m.
HOUR MIN ■ Press and hold until current hour appears on display. ■ Note the AM/PM indicator. M T W TH F SA SU 1234 HEAT COOL ■ Press and hold until current minutes appear on display. M T W TH F SA SU 1234 HEAT COOL AM PM I 9 : 00 7 2 FILTER AM PM DAY RETURN LO BAT c SET TEMP HOLD TEMP M T W TH F SA SU 1234 HEAT COOL AM PM I9:I5 72 FILTER ■ Returns to normal time and temperature. ■ If return is not pressed it will return automatically in 10 seconds.
Programming 18-19 Typical Suggested Summer and Winter Programs for Maximum Savings Studies conducted by the Department of Energy estimate that setting your thermostat back 10°F for two 8-hour periods during winter can reduce your fuel bill by as much as 30%. By setting your thermostat up 5° for two 8-hour periods during summer you can reduce your fuel bill up to 25%. Your thermostat is capable of holding up to 4 separate programs for heat or cool for weekdays and 4 seperate programs for each weekend day.
NOTE: The thermostat program will NOT take effect immediately after programming of your thermostat but at the next programmed time/temperature change. The thermostat is pre-set to 68°F (20°C) for heat and 78°F (25°C) for air conditioning. So if you want a temperature other than 68°F or 78°F (20°C or 25°C) right away, use the temporary manual override feature (described on page 26) to enter your desired temperature setting.
Programming 20-21 Personal Program Schedule Before programming or changing the program, use this Personal Program Schedule to determine which times and temperature settings will best satisfy both your comfort and energy saving requirements. Use a pencil so you can revise your records each time you change your temperature settings. FOR WINTER FOR SUMMER PROGRAM WAKE NUMBER 1 LEAVE 2 RETURN SLEEP 3 4 PROGRAM WAKE NUMBER 1 LEAVE 2 RETURN SLEEP 3 4 MON. thru FRI.
Programming Your Thermostat Your thermostat can be programmed in two different ways. 1. Autoprogram method 2. Manual method Before programming, position the Heat/Off/Cool selector to the mode to be programmed. Autoprogram method In autoprogram method, you can program your thermostat instantly for the entire week by simply pressing “Auto Prog.” key once. When this key is pressed, standard program gets activated and your thermostat is programmed automatically. The standard program is shown in table 3.
Programming 22-23 Programming Your Thermostat (Continued) NOTE: 1) The program time is set in increments of 15 minutes. 2) The program temperature is set in increments of 1°F.
Press Display Reads Step 3 M T W TH F SA SU 1234 HEAT COOL AM PM 86 : 00 69 FILTER Use HOUR Continue for Weekend Programs LO BAT c SET TEMP HOLD TEMP to insert or change time and temperatures of other programs. MIN M T W TH F SA SU 1234 HEAT COOL PROG ■ Press on once to change temperature to 69°F. ■ Weekday program 1 is complete.
Programming 24-25 Reviewing Programs You may want to review the programs to see that the settings are compatible with your lifestyle. M T W TH F SA SU 1234 HEAT COOL Weekday Program AM PM 89:15 72 FILTER LO BAT c SET TEMP HOLD TEMP M T W TH F SA SU 1234 HEAT COOL PROG AM PM 86 : 00 68 FILTER Continue pressing PROG LO BAT ■ Normal display of current time, temperature, and day of week. c SET TEMP HOLD TEMP ■ 1st weekday program is displayed. ■ Program indicator (1) appears.
To Review The Current Temperature Setting: M T W TH F SA SU 1234 HEAT COOL AM PM 89 : 15 68 FILTER Press for 2 seconds or less: LO BAT c SET TEMP HOLD TEMP M T W TH F SA SU 1234 HEAT COOL AM PM or 86 : 70 68 FILTER LO BAT ■ Current time and temperature c SET TEMP HOLD TEMP ■ 70 indicates the current setting of the thermostat is 70°F. 68 shows the present room temperature as 68°F.
Programming 26-27 Temporary Manual Override In the following example, the present room temperature is 60°F and we want to raise the temperature to 70°F temporarily until the next program. M T W TH F SA SU 1234 HEAT COOL AM PM 89 : 68 60 FILTER LO BAT c SET TEMP HOLD TEMP M T W TH F SA SU 1234 HEAT COOL AM PM 89 : 70 60 FILTER LO BAT ■ Press arrow to display current set and room temperatures.
Programming Your Thermostat (Continued) Permanent Manual Override M T W TH F SA SU 1234 HEAT COOL HOLD CLEAR AM PM 89 : 55 72 FILTER LO BAT c SET TEMP HOLD TEMP In the event you wish to hold your manual override for vacation or an extended period of time, follow the temporary manual override instructions on HOLD page 26, then immediately CLEAR press HOLD/CLEAR. This will maintain override setting indefinitely. “HOLD” will appear on the display.
Operations Filter Monitor . . . I 0 2 7 7 7 28-29 The CTC Programmable Thermostat measures and stores the amount of time the heating or air conditioning system operated. After 500 hours of usage, the word “FILTER” will appear and flash on the display, reminding you to check or replace your system filter.
Other Features Temperature Span Your thermostat is preprogrammed at the factory to cycle when the temperature rises 1° above or 1° below the temperature setting to provide maximum comfort. It cannot be changed.
Troubleshooting 30-31 Problem Solution SCRAMBLED OR DOUBLE DISPLAY (numbers over numbers) 1. Remove clear mylar sticker. NO DISPLAY 1. Check battery connections and batteries. 2. Press reset button once with a small pin and hold in for two seconds. ENTIRE DISPLAY DIMS 1. Replace batteries. PROGRAM DOES NOT CHANGE AT YOUR DESIRED SETTING 1. Check that time is set properly to “AM” or “PM.” 2. Check that thermostat is not in "HOLD" mode. 3. Check for correct day setting.
Problem (Continued) Solution (Continued) HEATING OR COOLING DOES NOT GO ON OR OFF 1. Check that function switch is in correct position (“HEAT” or “COOL”). 2. There may be as much as 20 seconds delay in the thermostat turning the system on - wait and check. 3. Check your circuit breakers and switches to ensure there is power to the system. 4. Replace batteries. 5. Make sure your furnace blower door is closed properly. 6.
Wiring Diagrams 32 4-wire Heat/Cool System THERMOSTAT Jumper RC RH G Heat/Cool Transformer Fan Relay 5-wire Heat/Cool System W Heat Relay or Valve Y Cool Contactor THERMOSTAT RC RH G Cool Heat Fan Transformer Transformer Relay W Heat Relay or Valve Y Cool Contactor
2-wire Heat Only THERMOSTAT RC RH G Heat Transformer 3-wire Heat Only W Y Heat Relay or Valve THERMOSTAT RC RH Heat Transformer 3-wire Cool Only G Fan Relay W Y Heat Relay or Valve THERMOSTAT RC Cool Transformer RH G Fan Relay W Y Cool Contactor
