Honeywell TRV15AHWC Thermostat User Manual


What is a thermostatic radiator valve (TRV)?  
. explanation for householders  
room being controlled at a lower  
temperature, and saves energy.  
User Manual  
TRVs sense the air temperature around them and  
regulate the flow of water through the radiator which  
they are fitted to. They do not control the boiler.  
TRVs need a free flow of air to  
sense the temperature, so they  
must not be covered by curtains  
or blocked by furniture.  
They should be set at a level that gives you the room  
temperature you want. These settings may have to be  
different in each room, and you should set the TRVs to  
suit each room and then leave them to do their job.  
TRVs cannot turn off the boiler when the whole house  
is warm. To do that, you will need a room thermostat as  
well. The radiator in the room with the room thermostat  
should normally have a TRV, but, if it does, keep the  
TRV on the maximum setting and adjust the room  
thermostat as explained with the instructions.  
Turning a TRV to a higher setting will not make the room  
heat up any faster. How quickly the room heats up  
depends on the boiler size and setting, and the radiator  
size. Turning the TRV to a lower setting will result in the  
This manual applies to the following homexpert by Honeywell products  
TRV15AHC: Angled TRV Kit — Chrome  
TRV15SHC: Straight TRV Kit — Chrome  
TRV15AHW: Angled TRV Kit — White  
TRV15SHW: Straight TRV Kit — White  
TRV15AHWC: Angled TRV Kit — Chrome & White  
TRV15SHWC: Straight TRV Kit — Chrome & White  
Radiator Valve  
0051974-001 Rev. A  
Installation options  
Valve installation  
Remove protective cap and connect fittings to radiator and hot water source as shown below. If necessary, cut  
supplied copper tubes to an entry depth of 10 mm into the TRV to ensure a secure connection.  
radiator valve (TRV)  
Lockshield valve  
The TRV can be installed on either side  
of the radiator, in a vertical or horizontal  
position, as shown at left.  
If a lockshield valve is also used on the  
same radiator, install it on the opposite  
side of the radiator, as shown.  
Connection to radiator  
OUT (cool)  
IN (hot)  
OUT (cool)  
IN (hot)  
Connection to  
hot water pipe  
OUT (cool)  
IN (hot)  
OUT (cool)  
IN (hot)  
NOTE: If you are not experienced in equipment installation, we recommend that these  
procedures be done by a professional installer.  
NOTE: Keep the protective cap.You can remove the thermostat sensor (see next page) and  
ALLOW RADIATOR TO COOL BEFORE INSTALLATION: To avoid injury, turn off boiler or stop  
screw the cap back into place to prevent water overflow if you must remove the radiator later.  
hot water flow to radiator and allow it to cool before installation.  
Sensor installation  
Temperature control  
Check all fittings to make sure connections are secure before installing the thermostat sensor. Center the sensor  
over the radiator valve, push down and screw firmly into place as shown below.  
Turn the sensor to control temperature at each radiator fitted with a TRV. Settings are marked with numbers rather  
than temperatures, because heating systems vary. An approximate guide follows, below. You may have to adjust  
the sensor for a day or two, to get the proper setting for the temperature you prefer.  
After installation, set the sensor to an appropriate temperature level, then turn on the boiler or open valves as  
needed to resume hot water flow to the radiator. Watch carefully to check for leaks. If leaks occur, stop hot water  
flow to the radiator immediately and check all fittings.  
1° C (potential hazard of freezing)  
6° C (frost protection level)  
12° C  
16° C  
20° C  
24° C  
28° C  
Turn to regulate  
Hand-tighten only.  
Do not use tools.  
NOTE: To ensure accurate temperature control, make sure the TRV is exposed to a free flow of  
room air, and is not blocked by draperies or furniture.  
NOTE: Temperatures listed above are estimates based on typical performance after vertical mounting.  
Temperatures may vary by 1° to 2° C if the TRV is installed in other positions.  
Limited warranty  
Honeywell warrants this product for 1 year from date  
of purchase. We undertake to replace or repair at our  
discretion, products should they become defective  
within 1 year solely as a result of faulty materials and or  
damage or installation costs arising from a defective  
If the product is defective, please return it together with  
a proof of purchase or receipt to the place of purchase.  
This does not affect your statutory rights.  
Understandably if the product has not been installed or  
maintained in accordance with Honeywell’s instructions,  
has not been used appropriately or if any attempt has  
been made to rectify, dismantle or alter the product in  
any way the warranty will be invalidated.  
If you require further information about this product,  
call the homexpert by Honeywell technical helpline on  
845 604 2893.  
For a full list of terms and conditions please visit  
This product warranty states Honeywell’s entire liability.  
It does not extend to cover consequential loss or  
The Arnold Centre  
Paycocke Road  
Basildon, Essex  
SS14 3EA  
Technical Help Desk: 0845 604 2893  
50051974-001 Rev. A  
© 2010 Honeywell International Inc  
homexpert by Honeywell is a trademark of Honeywell International Inc. All rights reserved.  

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