Owners Manual HTC621W 7-Day Programmable Thermostat 3600W HTC625W 7-Day Programmable Thermostat 4000W HTC627-347W 7213110100R06 7-Day Programmable Thermostat 5200W
Congratulations on your purchase of this Dimplex line-voltage thermostat. Your new thermostat is preprogrammed by the installer and ready to use. Please take the time to read and understand this manual so you can begin to enjoy the convenience this product offers.
This product is for use with high voltage system (HTC621W & HTC625W 120V~240V, HTC627-347W - 240V~347V) with a minimum load of 300W; it is not designed for use with low voltage (24V) central heating & air conditioning systems or wall mounted furnaces. In order to avoid fire, shock or death, shut off power supply at the circuit breaker or fuse and test that the power is off before wiring.
Table of Contents Step-by-step Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 LCD Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Location of Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Option Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation Step-by-step Installation 1. Remove the old thermostat carefully and identify the two wires from the wall box. 2. Gently remove the faceplate from the right side of the new thermostat. Note: Do not remove the screws from the back of the unit as these screws hold the thermostat together. Remove Faceplate To remove the faceplate, genly pull the right side of the thermostat. The faceplate should come off easily. 3.
Installation Step-by-step Installation . . . continued *120V ~ 240V AC Lines 4. Mount the new thermostat onto the wall box using the two screws provided through the mounting holes, and then replace the faceplate. (Place 2 screws in either the 2 right holes or the 2 left holes). If mounting on a single gang box, use the two mounting holes on the left side, in order to avoid fire or shock. 5. Reconnect power supply.
LCD Display 7
Location of Buttons 8
Option Settings This thermostat has 4 OPTION settings that you can change. The OPTION data will appear on the lower pane of the screen. Option 1: Choosing 12- or 24-hour Format • Press and hold SET for 3 seconds to enter the Option Setting mode. will flash on screen. (Note: The 12-hour format is the default setting.) • Press or to toggle between the 12- and 24-hour format.
Operation Option 2: Selecting the Heat Cycle Rate . . . continued Cr 0 is a fixed span (no cycling), with a variance of +/- 0.3°C (+/- 0.6°F). The heating unit will operate at full power and the power bar will appear full. This function is for users who do not want their electric heating devices turning on and off frequently. This is the recommended setting for fan-assisted electric heating devices. Cr 1 (Default) is a 20 second cycle rate with proportional heating.
Operation Option 3: Enabling the Pre-Comfort Recovery Feature This thermostat is equipped with a Pre-comfort Recovery feature which activates the heating system in advance of the actual set program time so that the room will be at the desired temperature at the start of the program time. It is normal for the system to be activated earlier than the actual set program time (up to an hour). The Pre-comfort Recovery feature can be disabled, if desired.
Operation Option 4: Selecting the Temperature Unit (°C or °F) Celsius (°C) is the default temperature unit; no action is required if this is the desired temperature display. 1. Press SET again to advance to the final option. The current temperature will appear on screen. 2. Press or to toggle between the °C or °F IMPORTANT: If you wish to use Fahrenheit (°F), it is important to choose this temperature unit before you begin programming the thermostat.
Operation Program Periods For maximum energy savings, this thermostat is equipped with 7-day programming – you can program 4 settings per day for each day of the week. This thermostat is preprogrammed for your convenience, or you can set your own programs as desired. The program periods (P1, P2, P3 and P4) allow you to set the temperature settings and start times throughout the day. P1: Morning During the morning, when you may prefer to wake up to a warmer temperature.
Operation Samples of Temperature Settings Default Setting The factory default setting will activate automatically; convenient for people who are away from home during the day and who wish to maximize energy savings. Period Time Heat Set Point Morning 6:00 AM 69.0°F (20.5°C) Day 8:00 AM 63.5°F (17.5°C) Evening 5:00 PM 70.0°F (21.0°C) Night 10:00 PM 62.5°F (17.
Operation Setting Program Schedules First, select the day you wish to program; then select the start times and temperature settings for all four programs periods. Scroll through the daily Program Periods in this order: P1, P2, P3, P4. You may select any weekday to begin. Program Periods Temperature Se ng Clock Symbol Weekdays Start Time 1. Press PROG to enter the program setting mode. 2. Press DAY to select the day you wish to program. (P1 will appear ). 3. Press or to set the desired temperature.
Operation Copy Program Function Using this thermostat’s COPY function is an easy and convenient way to copy the programming for all four period settings (P1, P2, P3 and P4) from one day to another instead of programming each day individually. Press PROG to enter Program Se ng Mode Press COPY to copy all four programming periods 1. If you are not already in the program mode, press PROG to enter the program setting mode. 2. Press DAY to select the day you wish to copy from. 3.
Operation Restoring Default Programs and Options If you have difficulty programming your thermostat, you may wish to restore the factory default settings and begin again. 1. Press and hold SET for 3 seconds to enter the option setting mode. 2. Press and hold PROG for 3 seconds to restore all programs to factory defaults. Note: This will restore the default programs and option settings but will not affect the clock.
Operation Hold Function This function allows you to permanently adjust the temperature setting for all time periods. It maintains a constant temperature and disables all programmed settings. 1. Press HOLD to enter the hold mode; the HOLD symbol appears. 2. Press 3. To cancel the HOLD function at anytime, press HOLD again.
Operation Usage Monitor The thermostat tracks the total run time, i.e. the total time the heating equipment is running. 1. Press USAGE once to view USAGE TODAY (starts at midnight). 2. Press USAGE again to view USAGE THIS WEEK (total time from Monday to current day; automatically resets every Monday morning, after midnight on Sunday. A new week begins Monday morning).
Operation High Limit Function The High Limit Function is a security feature which allows the user to select the maximum temperature limit. If this feature is activated, the user cannot set the temperature to go over this limit. The High Limit setting cannot be bypassed by programs, temporary overrides or the Hold function. Indicates High Limit Func on is ac vated 1. To activate the function, press or in the program temperature pane. until the desired high limit temperature is shown 2.
Troubleshooting Problem Solution The LCD screen is blank or abnormal • • • The thermostat housing feels hot to the touch Make sure the thermostat is fully installed. Check that the power supply has been reconnected at the circuit breaker or fuse. If the heater or heating appliance has a power switch of its own, check to see that it is in the ON position. When working at full capacity, the thermostat housing may reach a temperature of approx. 45°C to 50°C (113°F to 122°F).
Troubleshooting . . . continued Problem Solution Heating is not activated at the programmed time • • • • The heating system will not activate • • • Temperature settings will not change Review the programming guide to ensure the programs have been entered correctly. Check that the clock has been set to the correct time (e.g. AM and PM are reversed). Reset programs: Press SET for 3 seconds to enter option mode, then press PROG for 3 seconds to clear program settings only.
Limited 2-Year Warranty This product, excluding battery, comes with a two-year (2) warranty against manufacturer's defects in workmanship and material. The warranty allows for repair or replacement product at Dimplex’s discretion. Dimplex accepts no liability for labour related costs. (Note: Shipping and handling charges are not included under this warranty). The product is not guaranteed against wear or breakage due to misuse and/or abuse.
