Glow-worm Ultracom 2 24cxi User Manual

Supplied By www.heating spares.co Tel. 0161 620 6677
0020085231_02 - 05/10 - Glow-worm
- 10 -
7 Appliance installation
7.1 Scope of delivery
The appliance is delivered in a single carton with a document
pack and ttings.
i
The ues package will be ordered according to the
conguration of the installation.
• Please check the contents.
1 4.7
2.1
2
2.2
2.3
2.5
2.6
3
2.4
4
4.1
4.2
4.3
4.4
4.5
4.6
Key
1 Boiler (x1)
2 Accessories bag (x1)
2.1 Pressure relief valve connecting pipe (x1)
2.2 Connection bag (x1)
- Heating return valve (x1)
  -Coldwaterinletvalve (x1)
  -Heatingowvalve (x1)
  -Domestichotwaterconnection (x1)
- Gas isolation valve (x1)
2.3 Hanging bracket (x1)
2.4 Filling loop extensions (x2)
2.5 Seals bag (x1)
- Flat seal ½" (x2)
- Flat seal ¾" (x5)
  -Flatsealforcoldwaterinlet¾" (x4)
2.6  Compressiontting (x1)
3 Wall template (x1)
4 Documents bag (x1)
4.1 Installation and servicing manual (x1)
4.2 Flue book (x1)
4.3 Instructions for use (x1)
4.4  Extendedguaranteeleaet (x1)
4.5 Guarantee envelope pack (x1)
4.6 Magnetic lighting instruction label (x1)
4.7 Gas conversion label (x1)
7.2 Recommendations before installing
7.2.1 Domestichotwatercircuitdesign
Water pressure
The minimum working pressure to obtain the maximum
domestic ow is 1,0 bar.
The maximum working pressure of the domestic hot water
circuit is 10 bar. If the cold water supply pressure exceeds this,
then a pressure-reducing valve must be tted in the supply to
the boiler.
‘Hard’ water areas
The temperatures within the heat exchanger are limited by the
boiler control system to minimise scale formation within the hot
water pipework. However, in areas where the water is ‘hard’ (i.e.
more than 200 mg/L of calcium carbonate), it is recommended
that the hot water setting is reduced and that a scale reducer
is tted, refer to the manufacturer’s instructions or consult the
local water company for additional advice.
Domestic water ow rate
The domestic hot water ow has a restrictor, factory tted,
which reduces the ow to a maximum of:
- 24cxi ►8 l/min,
- 30cxi ►10 l/min,
- 35cxi ►12 l/min.
INSTALLATION

Glow-worm Ultracom 2 24cxi Specifications

General

Model	Ultracom 2 24cxi
Category	Boiler
Central Heating Output	24kW
Mounting	Wall-mounted
ERP Rating	A
DHW Output	24kW
Heating Flow Temperature Range	30-80°C
DHW Flow Rate at 40°C Rise	8.6 l/min
DHW Flow Rate at 50°C Rise	6.9 l/min
Warranty	2 years
Expansion Vessel	8 liters
Type	Combi Boiler