Certikin COH110, Operating, Installation And Servicing Instruction

Page: 58 / 96

12
4:5 SITING & POSITIONING
Consideration must be given to the following points.
1. Noise may be accentuated by the installation
in small rooms or recesses with hard or
hollow stud wall surfaces. Due consideration
to the siting of Heaters should be given.
2. Some individuals may be particularly
sensitive to even low noise levels and this
should be discussed before installation.
3. The type of chimney, position relative to the
Heater and whether a draught stabiliser is to
be fitted may affect sound level in the room.
4. All models are serviced from the front and top.
A space of 500mm (18") in front and above
the Heater should be available.
5. Any kitchen work top above the Heater must
be removable for service access.
4:6 THE HEARTH
All models have a Hearth Temperature of less than
85°C. The Heater requires a level hearth to stand on
which should comply with the Building Regulations.
If the Heater is to stand on a floor made of combusti-
ble material then protection between the Heater and
the floor should be provided by means of non-com-
bustible material.
Consideration should be given to the weight of the
Heater and the Building Regulations regarding floor
loading.
The filled Heater weight can be found in 3:5.
Advice should be sought from your local Building Con-
trol Office if there is any doubts regarding the floor
supporting the Heater.
4:7 OIL STORAGE
4:7.1 Oil Tank
Consideration to the access by fuel delivery lorries
should be given when positioning the oil tank.
Tank positioning should be in accordance with BS
5410 Part 1 and OFTEC Technical Book 3.
In the interest of most economical deliveries the Oil
Tank should be of 3,000 litres (600 gallons) capacity.
1/05/02
Heater
Pump Pump
Zone Valve
Non return valve
Pump
Non return valve
Second water 2 water
heat exchanger
with Aquastat or similar
Pool Plus Heating and Hot Water
Pool Plus Heating Pool Plus Spa
3 Way Valve
NB: Add extra Expansion vessel to suit new system volume.
Expansion vessel Expansion vessel
Heater Expansion
Vessel
4 litres
Heater
Heater Expansion
Vessel
4 litres
Heater
Heater Expansion
Vessel
4 litres
Fig 4:3a
4:4 IF COMBINED WITH A HEATING SYSTEM
The Controls provide a water temperature control
for use with a heating system, the Heating De-
mand Knob.
It requires an electrical supply for Heating Demand
to be connected as shown in the Wiring diagram
and a pipe circuit to be connected to the two rear
tappings of the Heater in place of the Air Vent and
Drain.
It is essential that an additional Expansion vessel
is added for the additional system volume.
Depending upon the Priority set (See commission-
ing, 7.1) the Pool or Heating will be brought up to
temperature first.
The Heating System should be installed in accord-
ance with current good practice as advised by HVCA.
Typical circuits are as follows.