RS PRO CC908WHB-3 Assembly, Installation And Operation Instructions
RS PRO CC908WHB-3 Assembly, Installation And Operation Instructions

RS PRO CC908WHB-3 Assembly, Installation And Operation Instructions

Thermostat for radiant heating

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CC908WHB-3 is a programmable thermostat designed for water boiler. This thermostat
can be used for hot water radiant heating.
Power source ........................
Relay contact ..............................250VAC 8(3)A
Room temperature setting range.........5℃ to 35℃ (41℉ to 95℉)
Accuracy.................................. ±1℉ or ±0.5℃
Dimensions..............................
Color...................................... White
l Large LCD display
l The screen displays the set temperature and the room temperature also time simultaneously
l Permanent user setting and program setting retention during power loss,
l Optional temperature display of Celsius or Fahrenheit scale
l Both Vacation mold and hold duration mode available for comfort and energy saving
l Separate 5-day (weekday) and 1-day/1-day (Saturday/Sunday programming with four separate
time/temperature periods per day.
l Display temperature recalibrates
l Anti-freezing protection
l Pump protection available
l Always turn off power at the main power source by unscrewing fuse or switching circuit
breaker to the off position before installing, removing, cleaning, or servicing this thermostat.
l Read all of the information in this manual before installing this thermostat.
l Only a professional contractor should install this thermostat.
l All wiring must conform to local and national building and electrical codes and ordinances.
l This thermostat has a removable fuse to protect the system from damage. If system is not
operating properly, check wiring and replace fuse if necessary.
l Use this thermostat only as described in this manual.
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CC908WHB-3 Thermostat for Radiant heating
SPECIFICATION:
2 AA battery
115mm×90mm×28mm
IMPORTANT SAFETY INFORMATION:
Installation and operation instructions
FEATURE:
1
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  • Page 1 CC908WHB-3 Thermostat for Radiant heating Installation and operation instructions CC908WHB-3 is a programmable thermostat designed for water boiler. This thermostat can be used for hot water radiant heating. SPECIFICATION: Power source …………………… 2 AA battery Relay contact …………………………250VAC 8(3)A Room temperature setting range………5℃ to 35℃ (41℉ to 95℉) Accuracy…………………………….
  • Page 2 KEYBOARD, DISPLAY AND SWITCH DESCRIOPTION Figure 1 Figure 2 ① Power on/ anti-freezing /off button ② Time setting button ③ Program setting button ④ Program run confirmation button ⑤ Reset button ⑥ Raise Temperature setting button ⑦ Lower Temperature setting button ⑧...
  • Page 3 NSTALL THE THERMOSTAT ATTACH THERMOSTAT BASE TO WALL Screw for mounting thermostat to wall B ase Figure 3 C ontrol panel Fixing screw . Remove 2 screws from the bottom of thermostat. Gently pull the control panel straight off the base. Forcing or prying on the thermostat will cause damage to the unit.
  • Page 4: Wiring Diagram

    WIRING DIAGRAM 250VAC 8A 250VAC 8A Figure 4 CHECK THERMOSTAT OPERATION The unit will be controlled via air sensor in the thermostat and the thermostat will determine to activate/deactivate heating system by comparing set temperature with room temperature. Press ▲ to adjust thermostat setting above room temperature 1℃...
  • Page 5 Displayed ( factory Item Press buttons Press▲、▼to select Descriptions default) ③ 01 (0) -3 --- +3 Select temperature display adjustment higher or lower ③ 02 (35℃) 18 ℃(64 ℉)—35℃ (95 Select maximum setting temperature for ℉) heating ③ 03 (5℃) 5 ℃...
  • Page 6 Manual Operation 1) Anti-freezing mode You can press power button ① to activate the anti-freezing mode. The unit only displays Clock time, Weekday and Room temperature. The default set temperature for anti-freezing mode is 5℃. During anti-freezing mode, if room temperature decrease to 5℃, the unit will activate the heating system till room temperature reach to 9℃.
  • Page 7 4. Planning your program Look at the factory preprogrammed times and temperatures shown in the sample schedule. If this program will suit your needs, simply press the ④ button to begin running the factory preset program. If you want to change the preprogrammed time and temperature, follow these steps. Determine the times period and temperature for your program.
  • Page 8: Check Your Programming

    Press ③ once to change to SU (Sunday) heating programming and repeat steps 3 through 7 to complete Sunday programming. 10). When you have completed entering your heating program, press ④. REVERT TO FACTORY DEFAULT PROGRAM SETTING Press ③ button enter into program setting. Press ▲&▼ at the same time for 3 seconds. Display will show DEF blinking for 3 times and back to program setting.

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