Certikin MB50S Service Manual download pdf (Page 5)

Condensing Pool Heater

22/12/08

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 (60°F to 90°F)

(Maximum is changed in Setup Mode, see Page 16)

Rotate clockwise to increase the Pool Temperature.

The Setting Temperature is shown whilst rotating

and for 3 seconds after.

To lock the required Temperature Setting see

Lock/Reset Button Page 1

Pool Pump Pressure

- Yellow LED, Display, Pool Temperature

On - If the pump is running and there is insufficient

pressure, possibly due to a blocked Pool Filter. The

Heater will not run.

Overheat

- Flashing Red LED, Display “OH2”

Flashing - This indicates the Heater has overheated

and it has shutdown. Wait for the Heater to cool then

press the Lock/Reset Button to start the Heater

again. If this problem persists this should be investi-

gated by a Service Engineer.

Overheat

- Red & Yellow LED, Display “GAS”

On - This indicates the Heater Gas Ignition Control

has locked out. Press the Lock/Reset Button to start

the Heater again. If this problem persists this should

be investigated by a Service Engineer.

Condensate -

Display “HI”

This indicates that the Condensate drain is blocked

and the Heater has shutdown. When the blockage is

cleared for the Heater will operate again.

Water Pressure Switch

A water pressure switch is provided in the heater to

shut off the burners in the event that water supply to

the heater is interrupted. The water pressure switch

should be checked and adjusted for proper opera-

tion by a qualified service person at the time of

installation, and thereafter checked at each service.

WARNING: Operation of the heater without water

circulation will cause rapid and severe damage to

the Heater.

Water Temperature Settings

The Heater is designed to provide the maximum

amount of heat to the pool up to one degree below

the set temperature. For that last degree it reduces

the power to maximise control. For certain installa-

tion designs, if the pool is used before it is up to set

temperature, the water entering the pool from the

Heater could be noticeably warmer than the pool.

This is not a fault but part of the design. It will reduce

for the final degree up to set temperature.

CAUTION

Elevated water temperature can be hazardous, and

the U.S. Consumer Product Safety Commission

recommends the following guidelines:

1. Spa or hot tub water temperatures should

never exceed 40°C (104°F). A temperature of

38°C (100°F) is considered safe for a healthy

adult. Special caution is suggested for young

children.

2. Drinking of alcoholic beverages before or during

spa or hot tub use can cause drowsiness which

could lead to unconsciousness and

subsequently result in drowning.

3. Pregnant Women Beware! Soaking in water

over 39°C (102°F) can cause fetal damage

during the first three months of pregnancy

resulting in the birth of a brain-damaged or

deformed child. Pregnant women should stick

to the 38°C (100°F) maximum rule.

4. Before entering the spa or hot tub, users should

check the water temperature with an accurate

thermometer; spa or hot tub thermostats may err

in regulating water temperatures by as much as

2°C (4°F).

5. Persons with a medical history of heart di-

sease, circulatory problems, diabetes, or blood

pressure problems should obtain a doctor’s

advice before using pools or hot tubs.

6. Persons taking medications which induce

drowsiness, such as tranquilizers,

antihistamines, or anticoagulant, should not use

spas or hot tubs.

Cleaning

It is recommended that periodically the casing is

cleaned and sprayed with WD40 or similar liquid, and

any exposed threads are lightly coated in grease.

Service & Maintenance

It is recommended that the Heater is serviced every

2000 hours of operation, for normal use this is about

12 months. The control will alert when you when it

reaches this period by its display, ‘SEr’ alternating

with the temperature.

It is a mandatory requirement that any gas work

carried out must be by a Corgi registered engineer

with an appropriate accreditation.

Winterisation

As supplied the Heater includes a dose of inhibitor

and anti-freeze, sufficient to protect the primary heat

exchanger down to -5° C. If the Pool and Heater are

not going to be used for the cold winter months it is

recommended that the equipment is winterised.

Contact your pool installer for help with this.

Failure to winterise the Heater during a period of

freezing could cause damage to the Heater which

will not be covered by your warranty.

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Certikin MB50S Service Manual Page 5

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