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Glow-worm Ultracom 2 24cxi User Manual

Glow-worm Ultracom 2 24cxi
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Supplied By www.heating spares.co Tel. 0161 620 6677
0020085231_02 - 05/10 - Glow-worm
- 25 -
12 Commissioning
i
At the time of commissioning, complete all relevant
sections of the Benchmark Checklist located in the
centre pages of this document.
The commissioning should be carried out by a competent
person approved at the time by the Health and Safety Executive
and in accordance with the current issue of BS6798.
12.1 Switchingon
Do not operate the boiler without water.
Make sure that the system has been thoroughly ushed out with
cold water and that all cleanser if used has been removed.
With the gas service isolation valve closed, with no demand
from any external controls and the power supply to the boiler
switched off.
Test for gas soundness and purge air from the gas supply.
Press the on/off button to activate the appliance.
Make sure that the domestic hot water and heating functions
on your appliance are not activated.
i
Before turning on the cold mains supply to the boiler
turn off the cold water inlet to the boiler, lock the
lling loop in the closed position and close its lling
taps. The DHW and CH circuits can then be lled,
ushed and tested independantly.
12.2 Filling the CH system (Central heating)
Make sure that the installation's cold-water inlet isolating
valve is open.
Open the isolating valves located on the connections: they
must be positioned in the direction of the ow.
1
3
2
Key
1 Air vent
2 Pump
3 Screwforthepumpshaft
Open the plug on the air vent located on the pump and the
automatic air vents on the installation.
If the Central Heating (C.H.) pressure falls below 0.4 bar, the
display will ash the current pressure and the boiler will not
operate. To increase the pressure, the CH circuit requires
"Topping up".
Push the disconnector up then turn the green locking collar
to lock the disconnector in the lling position.
Fully open the Lhd lling tap then gradually open the Rhd tap.
When the operating pressure is achevied, close both taps,
unlock the disconnector and pull down to disengage.
i
When turning the 230Vac supply on to the boiler
should the water pressure be less than 0.5 bar an
automatic air vent function will be activated for a
period of 5 minutes. During this time the pressure
should be increased and air vented from the system.
Note that the burner will not re in either CH or DHW
mode and the display will blink displaying the current
water pressure.
Vent air from each radiator until the water ows normally,
then close the vents.
Leave the pump's air vent open.
i
The following two operations will unblock the pump's
engine after a prolonged storage period and will
purge the air from the pumps circuit.
Remove the screw from the pump shaft and introduce a at
screwdriver. A trickle of water, under no pressure, should
normally come out of the pump.
Rotate the pump shaft through several turns, then replace
the screw.
12.3 Filling DHW Circuit
Open the various hot water taps to ll the DHW circuit.
INSTALLATION

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Glow-worm Ultracom 2 24cxi Specifications

General IconGeneral
ModelUltracom 2 24cxi
CategoryBoiler
Central Heating Output24kW
MountingWall-mounted
ERP RatingA
DHW Output24kW
Heating Flow Temperature Range30-80°C
DHW Flow Rate at 40°C Rise8.6 l/min
DHW Flow Rate at 50°C Rise6.9 l/min
Warranty2 years
Expansion Vessel8 liters
TypeCombi Boiler

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