When the burner motor starts, on one pipe sys-
tems it may be necessary to temporarily open the
air bleed screw on the test manifold.
If the burner locks out during the ignition attempt,
wait 45 seconds before pressing the reset button
on the control box. Several attempts on first fir-
ing may be necessary.
Once the burner is firing check and if necessary
adjust the oil pressure.
CARRY OUT COMBUSTION CHECKS BY
INSERTING PROBES INTO SAMPLING POINTS
PROVIDED:
Balanced flue, - hole provided in outlet end of ter-
minal.
Conventional flue - drill a small hole in the flue
pipe, between the flue spigot and casing top panel
(large enough to accept the sampling probe).
Check the Smoke No., if clean wait 10 minutes
and measure C0
2
.
Adjust the air shutter if necessary, open to re-
duce C0
2
, close to increase C0
2
.
If the air shutter is adjusted, re-check the Smoke
No.
Check the flue gas temperature.
The figures should agree with the Heater Com-
missioning Data.
Check lockout function, either cover the photo-
cell, or remove solenoid coil, to simulate flame
failure. Re-instate components and press lock-
out button.
Complete commissioning report.
Instruct the user on the operation of the Heater
and leave the operating instructions with the cus-
tomer.
8: MAINTENANCE
8:1 GENERAL INFORMATION
A Heater fired with Class C Oil should only require
attention once each year, whereas with Class D Oil,
attention twice each year may be required.
33
8:1.1 Inspection
With the Heater operating, inspect for signs of un-
satisfactory operation, i.e. leakage of combustion
products, leakage of oil, or unusual noises from the
pump or motor.
Check the commissioning list if it is your first attend-
ance to the appliance. Is there a reason why the
Heater might fail after you leave?
It is useful to measure the combustion data, i.e. C0
2
, Smoke No. and flue gas temperature, and a check
on the oil pressure, prior to carrying out maintenance
work.
8:1.2 Winterisation
Provided there is a Mains and Oil Supply to the
Heater, the controls will automatically protect
against freezing in the following way.
At 3°C (37°F) the Heater will turn on its Internal
Pump, and if connected the Pool Pump.
If this fails to raise the temperature to 5°C (41°F)
within 5 minutes the Pool Pump is turned off and
the burner fired until the Heater reaches 10°C
(50°F). If this automatic protection is not required
the Mains Supply to the Heater should be switched
off.
Additionally, the Heater can be protected by
draining down or protecting with Anti-freeze. The
Manufacturer recommends Betz Dearborn X500
Anti-freeze in the following doses.
Model
Water X500
Inhibitor Alone
content
(Anti Freeze & Inhibitor)
110
20 litres
½
a X500 Cubitainer
¼
of a 1 litreX100
180
40 litres
One X500 Cubitainer
½
of a 1 litreX100
220
40 litres
One X500 Cubitainer
½
of a 1 litre X100
280
70 litres
1
½
X500 Cubitainer
1 of a 1 litre X100
The above Anti-freeze concentrations will provide
protection down to -15
º
C.
8:1:3 Maintenance Procedure
Switch off electrical supply at the
MAINS
ISOLATING SWITCH.
OIL TANK
De-sludge oil tank (if necessary), and draw off
any accumulated water.
Check the correct grade of oil is being used.
9-04-02
Summary of Contents for COH110
Page 60: ...14 Fig 4 9b Reillo bypass adjustment 9 04 02 Fig 4 9a Reillo bypass adjustment ...
Page 63: ...17 9 04 02 ...
Page 82: ...36 9 04 02 ...
Page 83: ...37 Model 220 only Fig 8 3c Model 280 only Fig 8 3d Top Top Top 9 04 02 ...
Page 86: ...40 9 3 BURNER PARTS 9 04 02 Model 110 443T58 ...
Page 87: ...41 29 01 08 Model 180 459T55 3007708 ...
