Honeywell TRV15AHWC Thermostat User Manual

What is a thermostatic radiator valve (TRV)?

..an 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

Thermostatic

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.

Thermostatic

radiator valve (TRV)

Lockshield valve

(optional)

The TRV can be installed on either side

of the radiator, in a vertical or horizontal

position, as shown at left.

Cap

If a lockshield valve is also used on the

same radiator, install it on the opposite

side of the radiator, as shown.

TRV

Connection to radiator

OUT (cool)

IN (hot)

OUT (cool)

IN (hot)

TRV

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

temperature

Temperature

sensor

Hand-tighten only.

Do not use tools.

Radiator

valve

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

workmanship.

damage or installation costs arising from a defective

product.

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

www.homexpertbyhonyewell.com.

This product warranty states Honeywell’s entire liability.

It does not extend to cover consequential loss or

Honeywell

The Arnold Centre

Paycocke Road

Basildon, Essex

SS14 3EA

Technical Help Desk: 0845 604 2893

50051974-001 Rev. A

www.homexpertbyhoneywell.com