Heatmiser DT-W User manual

Model: DT-W
REF: DT-W
Revision 1.1 12/11

Contents Page
Install Procedure 2-3
Pairing the Thermostat 4-7
Icons Explained 8
Temperature Display 8
Seng the Temperature 9
Locking the Thermostat 9
Turning the Heang On/Off 9
Factory Reset 10
Oponal Feature Setup 11-16
Wiring Diagram 17
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4
Pages 17-24 explain the different features available on this
thermostat.
Pairing with the RC1-W Receiver
If using with the UH1-W wiring centre, turn to page 6.
With the thermostat turned off:
• Press & hold the Clock buon unl you see two sets of
numbers appear.
• The small number 01 in the top right corner of the LCD is the
feature number.
• Press Clock repeatedly unl you see feature 06 (Receiver
Type). The opons within feature 06 are: 00 = UH1-W or
01 = RC1-W receiver.
• Use the Up/Down keys to set feature 06 to 01 (RC1-W).
• Press Clock again unl you see feature 07 (Receiver Address).
You can now select a Receiver Address from 01-32.
• Use the Up/Down keys to set feature 07 to 01. (You should set
a unique receiver address for each receiver installed).
• Press Clock again unl you see feature 08 (Zone number).

5
You are able to connect two DT-W thermostats to one RC1-W
which zone this thermostat controls, 01 or 02.
• Press A to accept, the display will now go blank.
Pairing the thermostat
Comms LED comes on.
5 seconds. The thermostat will send a signal for 1 minute, and
will flash the RF signal icon.
If successful, the Comms LED on the receiver will flash.
pairing.
• If the pairing is unsuccessful, check features 06 to 08 have
been configured correctly, to eliminate a possible signal issue
repeat the pairing process again.

6
Pairing with the UH1-W Wiring Centre
On the UH1-W wiring centre, take note of the
number set on the rotary switch (Board ID number
1-9). Each UH1-W on the system will need a different ID number.
With the thermostat turned off:
numbers appear.
• The small number 01 in the top right corner of the LCD is the
feature number.
RC1-W receiver.
• Use the Up/Down keys to set feature 06 to 00 (UH1-W).
Address).

7
• Use the Up/Down keys & set the large digits to the board
address of the UH1-W, this is the number set on the UH1-W
rotary switch. (You should set a unique board address on each
UH1-W installed).
• Press Clock again unl you see feature 08 (Zone Number,
01-08). The UH1-W is an 8 zone receiver. Use the up/down
buons to select the zone this thermostat should be linked to.
• Press Clock again unl you see feature 09.
00 = Under-floor heang, 01 = Radiators. Use the up/down
buons to select if the thermostat is controlling Under-Floor
heang or radiators.
• Press A to accept, the display will now go blank.
• Press the power buon once to turn the thermostat back on,
press the up buon & set the target temperature above the
room temperature, the flame symbol should then appear and
the assigned zone on the UH1-W should now be acvated.
This indicates pairing between the thermostat & the UH1-W is
successful.

8
He ng On
He ng Off – Frost Mode
Key Lock
RF Signal Ac ve
Ba ery

9
•
•
•

•
•
10

11

12
Feature 04 – Frost Protect Temperature: This is the
temperature maintained when the thermostat is in frost mode.
The range is 07-17°C. The default is 12°C and is suitable for
Feature 05 – Output Delay: To prevent rapid switching, and
output delay can be entered. This can be set from 00-15 minutes.
The default is 00 which means there is no delay.
Feature 06 – UH1-W or RC1-W receiver: The thermostat
can work with our UH1-W 8 zone wiring centre or RC1-W
Feature 07 – Receiver Address: Within one building, up to 9
UH1-W’s or 32 RC1-W’s can be used. Each receiver must
have a unique receiver address.

13
Feature 08 – Zone Number: This is the zone number you are
assigning the thermostat to on either the UH1-W or the RC1-W
receiver. 01-08 - UH1-W, 01-02 – RC1-W
pump & boiler output on the UH1-W. If set to 00 the outputs will
Feature 10 – Fail Safe
If enabled, the thermostat will send a signal to the receiver every
20 minutes. Should the receiver fail to receive two signals, the
protect the system against a loss of wireless signal or should the

14
Feature 11 – Up/Down Temperature Limit:
temperature keys. This limit is also applicable when the
thermostat is locked and so allows you to give others limited

15
01-03C
01C Default
04 Frost Temperature 07-17C
(12C Deafult)
05 Output Delay 00-15 Minutes
(00 Default)
06 UH1-W or RC1-W 00 = UH1-W
Receiver 01 = RC1-W
00 = Default

16
07 Receiver Board UH1-W = 01-09
Address RC1-W = 01-32
00 = Default
08 Zone Number UH1-W - 01-08
RC1-W = 01-02
09 Underfloor Heating or Underfloor Heating =
Radiator 00
(UH1-W Only) Radiator Zone = 01
10 Fail Safe 00 Disabled
01 Enabled
(00 Default)
11 Up/Down Limit 00-10C
00C Default

17
REMOTE AIRPROBE
RED
WIRE
Set feature 12 to 01 to
enable the remote air
probe.
WHITE
WIRE