Comfortheat MTD3 Programmable Thermostat
MTD3 MANUAL
A Comfort Heat floor heating system has been installed in your floor. Floor heating warms from the ground up providing an unparalleled feeling of comfort. This heating system is controlled by an electronic thermostat and floor sensor for optimum temperature control and efficiency.
MTD3 DETAILS
The MTD3 thermostat is a manual ON/OFF thermostat you set to a fixed temperature. Once the floor reaches the set temperature, the system will turn ON and OFF automatically maintaining the fixed temperature
PRIOR TO TURNING ON
Concrete slabs, screeds and tile glues must be fully cured before turning the heating system on. Wait at least 3 weeks and when turning on for the first time, increase the floor temperature gradually over 2-3 days Under carpet and timber systems can be turned on once installation is complete
CABLE WARRANTY & SUGGESTED FLOOR TEMPERATURES
| AREAS | TILE [BATH] | TILE [LARGE AREA] | INSLAB | CARPET | TIMBER |
| SUGGESTED TEMPERATURE | 24-28ºC | 21-22ºC | 21ºC | 19-21ºC | 24ºC |
| CABLE WARRANTY | 10 years | 10 years | 10 years | 5 years | 5 years |
TECHNICAL DATA – MTD3
- Supply Voltage: 240VAC, 50/60hz
- Output Relay: 16A SPST, 3600W max
- Switching Differential: 0.4 degC
- Built-in Switch: 2 pole 16A
- Temperature Range: 0/+40 degC
- Housing/protection: IP21
- Dimensions (HxWxD): 115mm x 84mm x 40mm
- Sensor Length: 3m
- Mounted: Vertical/Horizontal Flush mounted
- Warranty: 2 years
OPERATION SETTINGS
TURNING ON
- Open the front cover of the thermostat and slide the power switch ON.
- > Press red(up) and blue(down) button to set the fixed set point temperature.
- > Press Menu/Select [grey] button to set.
- The thermostat screen is set to display the set point temperature and not the current running temperature.
- The three heating squiggles at the top of the thermostat screen will turn on when the floor is heating.
RUNNING GUIDELINES
Due to the MTD3 being a manual thermostat, it is typically used in small areas, at low temperatures, and not turned ON/ OFF daily. The temperature is set and the thermostat is left to maintain a fixed temperature 24/7. The MTD3 is also used with large in-slab areas which are connected to a dedicated off-peak circuit. Slabs have a large thermal mass and the ability to store heat for long periods of time. Heating slabs during off-peak times is a cost efficient heating option. Please note it must be a dedicated off-peak circuit. Electricity calculated via smart meters and time of use require a digital MWD5 thermostat providing the ability to programme heating at off peak times.
CHILD LOCK
- Press and hold the up and down arrow buttons simultaneously, until a lock appears onscreen.
- > Press and hold the up and down arrow buttons simultaneously, until a lock disappears.
CHANGE FRONT COVER
The MTD3 comes with an alternate plain cover plate for a minimal look. To change the cover;
- > Open the cover wide
- > Hold plate close to the thermostat and pull down.
- > Align alternate cover at top of thermostat and apply pressure on the bottom.
SETTING PARAMETER VALUES – MENU MODE
- Parameter settings allows you to set a range of values to define heating options and temperatures.
- See the MTD3 included manual to view the full range of parameter options. Most default values need no adjustment.
| MENU | DESCRIPTION | SETTINGS | DEFAULT |
| APP | Choose sensor to control heating | A / F / C / AF / AE | F [Floor] |
| SCA | Set the min. and max. temperatures | 0ºC – 40.0ºC | 0ºC – 40.0ºC |
| tP | Temperature read out | Flo / ro | Flo [floor] |
| LCd | Select; Temp. setting & Display setting | C / F / nu & SP / tP / CL | C [celcius] & SP[setpoint] |
| AdJ | Calibrate the measured room temperature | ||
| nSb | Night setback temperature | 2.0ºC – 8.0ºC | 5ºC |
| dEF | Frost protection | 5.0ºC – 10.0ºC | 8ºC |
| PWM | Duration of the heating periods | oFF / on / Aut | |
| PLi | Power limit | 0 – 30min | 0 |
| tiME | Time and ev ent setting | ModE / dAY / Hour / Min | |
| SW | Software v ersion | ||
| donE | Sav e settings and Exit menu |
To enter menu mode;
- Press Menu/Select button for 5 seconds.
- Scroll through menu options with arrow buttons
- Press Menu/Select to enter selection. [See full instruction manual]
- Scroll down to [donE] and press Menu/Select to exit menu mode.
TROUBLESHOOTING
If an error message occurs, the thermostat will display one of the following errors;
- E0 : Internal failure. The thermostat is defective. Thermostat must be replaced.
- E1 : Internal room sensor defective or short-circuited. Thermostat must be replaced.
- E2 : External floor sensor disconnected, defective or short-circuited. Requires floor sensor reconnection or replacement.
- E5 : Internal overheating. Installation requires inspectIon.
Comfort Heat
- Comfort Heat Australia Pty Ltd ABN 64 089778941
- 8/11 Ponderosa Parade Warriewood NSW 2103
- PO Box 220 Mona Vale 1600
- Telephone +61 9979 8600
- [email protected]
- www.comfortheat.com.au
- Local call 1300 13WARM
REFERENCE:
DOWNLOAD MANUALS:
Comfortheat MTD3 Programmable Thermostat Operating Manual
OTHER MANUALS:
Comfortheat MTD3 Programmable Thermostat User Manual
Comfortheat MTD3 THERMOSTAT General Wiring Diagram