Gas Connection; Water Connection; Flue Gas; Flue Gas Release Safety Device - Morco EUP6 Installations-, Betriebs- Und Wartungsanleitung

As a guide, the minimum effective free area of vents is stated below in
connection with this water heater. Additional appliances burning gas in
the same area would require additional ventilation.
If the appliance is installed in an enclosed cupboard in a Caravan Holiday
Home the required ventilation is that specified in BS EN 1949, i.e. 10 cm² per
kilowatt input rating divided between high and low.

Gas connection

The water heater should be connected to the gas supply via a 15mm
diameter copper gas pipe. A gas isolation valve must be fit- ted to the gas
inlet on the water heater.
When installing or commissioning the water heater the following must
be observed:
- The diameter of the gas pipe between the supply bottle or tank must
be in accordance with the regulations in force
- The regulator size and pressure specification are correct for the appli-
cation
- The correct gas (L.P.G.) is being supplied
- All the required gas pressure and tightness tests are carried out as part
of the commissioning process.
- Gas joints downstream of the magnetic gas valve must be checked with
leak detection fluid while the heater is running
- Gas jointing paste should not be used when connecting the gas
isolation valve
Do not obstruct the area's ventilation openings where the device is in-
stalled to avoid dangers such as the build-up of toxic and explosive gases.
ATTENTION: if the appliance is supplied with G31@50 mbar, remove
the protective cap (pos. 10 page 32 water heater components) and regu-
late the pressure screw so that the burner reaches the pressure indicate
in the technical data.

Water connection

Connect the water heater to the water supply.
From the front, the cold water input is on the right and the hot water
output is on the left.
Insert the filter into the water valve input fitting.
Remove the plastic cap from the hot water output fitting before
connecting it to the water supply.

Flue gas

For output of flue gases refer to the regulations in force including any
updates. See page 4.
The water heater must be connected to a suitable flue terminal. The
following must be observed:
- The flue must be installed vertically – through the roof of the holiday
home
- The diameter of the flue terminal must match that of the water heater
(90 mm for EUP6 and 110mm for EUP11)
- The overall flue length from the top of the water heater to the top of
the external flue must be at least 600mm. The distance from the exter-
nal roof surface to the top of the external flue must be at least 250mm.
Flue gas safety device
This product is equipped with a flue gas safety device. The device ensures
the flue gases leave the water heater safely via the flue. The flue safety
device is a flue gas safety device that will interrupt the flow of gas to the
water heater burner and pilot light in the event that there is a total or
partial blockage in the flue that does not allow the flue gases to leave
safely. The device will also operate if the design or length of the flue is not
correct. This stat will reset when it has cooled down due to the technical
issue being resolved thus allowing the water heater to operate as normal.
If the flue gas safety device is faulty it will need to be replaced before the
water heater will function again. The stat must not be removed or altered
in any way otherwise the operation of the water heater may become
dangerous.

OPERATION

Function

The water heater is designed to produce instantaneous hot water. The
hot water is delivered to several outlets around the home. If more than
one outlet is used at any one time the delivery of hot water will be redu-
ced at each outlet. The Water heater has 2 main controls:
- A gas control knob - "A" in fig 4 page 35
- A water temperature control knob – "B" in fig 4 page 35
The minimum gas level (fig. 4) will provide approximately 50% of the avai-
lable power. Turning the gas control knob counter- clockwise will increase
the power level between 50% and 100%. This function may be useful to
vary the temperature of the water supplied.
The water temperature selector allows water to be supplied anywhere
between 50% and 100% of the water heater's capability. In effect the se-
lector reduces the water flow through the heater to the taps to increase
the water temperature and correspondingly increases the water flow to
reduce the water temperature.
In the UK the normal positions for the controls are:
- Gas control – always set to 100% (fully counter clockwise)
- Water control set to 100% (fully clockwise) during the winter months
- Water control set to between 100% and 50% during the summer
months to suit the customer's preference for hot water temperature
Usage (fig. 4 page 35)
Ensure that the appliance gas isolation valve and all water taps are
switched off
- Turn on the main external gas supply on the bottle or tank
- Light other gas appliances such as the cooker hob or fire and allow them
to run for 30 seconds- this is to purge the gas system of air
- Open the appliance gas isolation valve, placed immediately below the
water heater on the gas input pipe
- Rotate knob A to the pilot position (
way and keep it pressed
- Press the piezo electric button that is located under the water heater
until the spark ignites the pilot flame. The flame can be seen through
the viewing hole on the front of the heater by looking slightly upwards
and to the left. When it ignites, keep the gas control knob ("A"), pres-
sed for 20-30 seconds. If the pilot does not stay lit when the knob is
released, repeat the procedure
- Rotate knob A towards the large flame ( ), during rotation it is neces-
sary to keep the knob pressed down lightly until the final position is
reached
- From this moment the device is able to produce hot water on request.
Opening the hot water tap causes the main burner to be ignited, and
inversely, by closing the hot water tap the main burner is switched off;
but the pilot flame remains switched on for future requirements
- If the main burner or pilot flame is accidentally turned off, the gas valve
automatically blocks the output of gas within 60 seconds so to avoid
any danger. To return the device to an operational mode, repeat the
steps above
The machine is switched off by rotating knob A to the ( OFF) position.
When the water heater is not used for long periods close the appliance
gas isolation valve or the L.P.G. gas valve on the bottle/tank.For the best
operational results it is recommended to have a Gas Safe Engineer or
other qualified technician service the machine at least once a year.
PRECAUTIONS TO BE TAKEN AGAINST FROST AND FREE-
ZING CONDITIONS
If there is a possibility that the area where the appliance is installed could
reach below 0°C, the device must be emptied of all water.
During cold spells, if your appliance is located in a place exposed to frost
and freezing conditions, it must be drained down in the following way:
- Turn off the home's water inlet stop tap.
- Disconnect the water supply pipe from the home
- Open any drain cocks located on the hot/cold water pipework under
the home
- Turn on all hot and cold water taps
7

), press the knob down all the