Operation; Burner Assembly - andrews RFF190 Installation Manual, Operation And Service Manual

SECTION 5
BURNER
ASSEMBLY
Fig 9.
18

OPERATION

Checking main burner pressure
1. Turn gas supply OFF.
2. Release bleed screw A and connect pressure gauge tube (See Fig. 9)
3. Light burner as described previously.
4. Remove cap from port B and adjust pressure using exposed screw in accordance with
data plate (See Fig. 9)
5. Shut OFF burner as described previously. Remove pressure gauge tube and tighten
bleed screw A.
6. Re-light burner as described previously.
Alarm
Reset
Button
When properly installed and adjusted the Heater will require the minimum of attention.
Should it become necessary to completely drain the heater, close the cold water inlet valve,
open a hot water tap to allow air to enter the system. Fit a suitable hose to the drain cock
and open.
Whenever the Heater is filled with cold water condensation will form on the cold storage
vessel surfaces when the burner is lit. Condensation is normal and does not indicate a leak.
It will disappear when the storage vessel becomes heated.
The control thermostat fitted to this heater has a built in limit thermostat (ECO). In the
event of high water temperature the gas supply will be shut off automatically. The high
temperature condition must be identified and rectified before the heater is relit. The
thermostat has a manual reset button which is pressed to close the ECO and allow the
heater to be relit.
IF IN DOUBT CONTACT ANDREWS WATER HEATERS
B
A