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FIGURE 13. CABLE POSITIONING
CONDENSATE DRAIN
TUBE
MAINS SUPPLY
OPEN THERM CABLE
11. GAS
(See BS 5864 and BS 6891)
11.1
The local gas supply conditions MUST be adequate for the specified burner pressures as stated in the technical
specification (section 5).
11.2
An independent gas supply pipe from the meter is to be preferred wherever possible. Where this is not possible,
the pipe must be capable of taking the complete input of the heater and all other gas appliances being served
by the same pipe. This supply should be suitably sized to conform to British Standards requirements of no more
than 1.0 mbar (0.4” wg) pressure drop (See table of discharge in BS 6891).
11.3
The ½” union gas cock (supplied) MUST be fitted to the gas inlet of the heater for easy isolation during servicing.
The gas pipe should be fitted and installed so as to be durable, substantial and gas tight. To assist in determining
where a gas connection may not be tight, a leak detection fluid should be applied around the connection. Under
no circumstances should a flame be used to locate a gas leak. Gas entry to the air heater is through either side
or the base, to a 15mm compression fitting.
12.
ELECTRICAL
WARNING: THIS APPLIANCE MUST BE EARTHED!
12.1 MAINS SUPPLY
The heater is supplied with mains cable (PVC sheathed, heat resisting to 85˚C),
3 core: Brown; Blue; Green/Yellow, 6A, 0.75mm²), connected to the PCB
control panel and exiting through the heater at the left hand top. The cable is
suitable for a 230V 50Hz supply and requires connection to the fixed wiring
using a double pole switched, fused spur with a contact separation of at least
3mm in ALL poles. The fuse fitted must be rated 5A to BS 1362. Connections
must also be in accordance with the current edition of I.E.E Regulations BS
7671.
NOTE:
If, for any reason, the heater is re-wired, then 3 core cable that meets the
above specification MUST be used. Under NO circumstances, should 5 core
cable be used for the combined purpose of supplying power to the heater and
connecting the Open Therm Controller!
a. Fan delay and overheat (limit controls) are not adjustable and are factory
set.
b. An Open Therm Controller is supplied which acts like a room thermostat.
12.2
OPEN THERM CONTROLLER AND ITS LOCATION
This appliance must be interfaced with the following: Open therm room units (supplied). The open therm controller
supplied is a fixed wired option. For wireless and “smart” upgrades, consult [email protected].
12.2.1 The room-stat should be located where there is free air circulation and positioned approx. 1.5m
(5ft) from the floor.
12.2.2 Avoid the following locations:
a.
In a room where temperature is greatly affected by the sun or any other heat source, e.g.
radiant fire, wall light fittings or TV set.
b.
Near an outside door or windows, or on an outside wall.
c.
Where it will be affected by warm air ducts, diffusers, waste pipes or the heater itself.
d.
Where it will be subjected to vibration.
12.2.3
Refer to wiring diagram 1 for the installation of the thermista-stat. See Figure 32.
12.2.4
In line with specific advice given during installer training courses in September, October and November
2019, the fitting of any Non Open Therm-Compatible Controller to any of the WarmCair C range of Warm Air
Heaters will invalidate the guarnatee immediatley.
The fitting of this type of controller can cause sever damage to the heat exchanger and under no circumstances
should be used.
Summary of Contents for WARMCAIR C16D
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