Supplied By www.heating spares.co Tel. 0161 620 6677
35
Part No. 5000893
WARNING: DO NOT ATTEMPT TO ALTER THE
TEMPERATURE BY ADJUSTING THE WATER
HEATER TEMPERATURE SELECTOR - THIS
MUST ALWAYS BE SET AT ITS HOTTEST
POSITION WHEN THE SHOWER IS IN USE.
6. When non-thermostatic type mixer valves
are set with the temperature control at the
maximum hot position the water temperature
can rise to the full output of the water heater
i.e. approximately 60
°
C (140
°
F).
It is therefore recommended that before
stepping under the shower when operating
this type of control set the mixer to a mid
position and then gradually increase to the
desired temperature.
7. Flexible shower hoses and rigid pipes
between the mixer valve and shower head
must have a minimum bore of 3/8 in.
8. Push on type shower mixers are NOT
suitable.
9. The shower head must be of a low pressure
type and be capable of passing
approximately 13.6 l/min (3.0 gal/min) of
mixed water.
10. Flow isolation should be provided on the
supplies to the shower system to facilitate
servicing.
ADJUSTING THE SYSTEM
Two methods are suggested for setting the system depending
on whether a thermostatic or non-thermostatic shower mixer
is used.
NON-THERMOSTATIC SHOWER MIXERS
1. Turn off the cold water supply to the water heater using the
service tap supplied.
2. Turn the mixer temperature control to the mid position.
3. Turn the mixer flow control to maximum.
4. Turn on the cold supply to the mixer and adjust the water
governor so that the cold flow from the shower head is 7.3
l/min (1.6 gal/min) This flow can be checked using a
graduated container. The time taken for collecting 4.5 litres
(1 gallon) should be 37 - 39 seconds.
5. Turn on the cold supply to the water heater and check the
shower temperature. It should now be possible to obtain
the desired shower temperature using the controls on the
mixer.
THERMOSTATIC SHOWER MIXERS
1. Turn on both the hot and cold water supplies to the shower
mixer.
2. Turn the mixer control to the maximum position or if
graduated in degrees centigrade to 45
°
C.
3. Turn the mixer flow control to maximum and adjust the
water governor so that the temperature from the shower
head is at 45
°
C.
Shower Information
