4
MB Pool & spa heater
Quick Start
Check that the Electricity and Gas Supplies are on.
Turn on the Pool Pump. Turn on the Heater with the
switch on the Front Panel and set the desired tem-
perature with the Pool Temperature Knob. In a few
seconds the Heater will fi re.
Summary of Controls
(Left to Right)
ON/OFF Switch -
Turns the Heater On and Off and
resets the Ignition Control if locked out.
Lock/Unlock Button -
If it is pressed for 2
seconds it locks the Set Temperature so the Pool
Temperature Knob is inoperative. To unlock, press
again for 2 seconds.
With a short press the Set temperature is displayed.
It will fl ash if the Lock is ON.
Pool Temperature Display -
This normally shows
the Pool Temperature but also show the Setting
Temperature when the Pool Temperature Control
Knob is moved. The Display is also used for com-
missioning and diagnostic purposes. If the display
alternates the temperature with '
SEr
' it is recom-
mended that the Heater is serviced, it will continue
to function.
(Page 34)
Pool Demand LED - Green
Off
- There is no Pool Heating demand, pool heating
is off.
On
- There is Pool Heating Demand and the Pool is
not up to temperature.
Flashing
- The Pool Heating Demand is met, the
pool is up to temperature.
Pool Temperature Control Knob
16°C to 32°C or 41°C (60°F to 90°F or 106°F)
(Maximum is changed in Setup Mode, see Page 34)
Rotate clockwise to increase the Pool Temperature.
The Setting Temperature is shown whilst rotating the
control knob and when released fl ashes 3 times to
confi rm setting.
To lock the required Temperature Setting see
Lock/Unlock Button
.
OPERATING MODELS 185, 265 and 405
Pool Filter Blocked - Yellow
On - If the pump is running and there is insuf-
fi cient pressure, possibly due to a blocked Pool
Filter. The Heater will not run.
Overheat - Red
On - This indicates the Heater has overheated
and shutdown. Use the Overheat Reset (see
below). If this problem persists this should be
investigated by a Service Engineer.
Overheat Reset (not on front panel)
If the Overheat Indicator has lit the Heater will not
work until the thermostat has been reset.
(See page 24 for location)
Wait until the Heater is cool then remove the door
and locate the Overheat Thermostat mounted on
its bracket. Press its centre and it will click.
The Red Overheat indicator will go out and the
Heater can now run.