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Greenstar Wiring Centre
Fuse spur
10-way
wiring centre
Pump
DHW cylinder
3-core, SL, N, E
Boiler located
in kitchen
Wiring Centre located in airing cupboard
Existing boiler system layout
Fuse spur Fuse spur
Greenstar
Wiring Centre
Pump
DHW cylinder
3-core, BUS, BUS, E
Greenstar Wiring Centre
located in airing cupboard
Greenstar 27Ri and 30Ri
boiler located in kitchen
System layout with a Greenstar Wiring Centre
Enabling plug-in, fascia mounted digital timers and
programmers for Greenstar 27Ri and 30Ri regular boilers
The Greenstar Wiring Centre is a major benefi t for installers
and end users, allowing the use of Worcester’s plug-in RF
controls, including wireless models, to be used on the new
Greenstar 27Ri and 30Ri regular boiler. This enables digital
timers and programmers to control the heating and hot
water for regular boilers systems. The wiring centre clearly
distinguishes whether the cylinder needs hot water or if
the home needs heating and, to maximise comfort and
effi ciency, responds by operating the boiler at different
temperatures for each.
Simple, time-saving installation
An innovative feature of the Greenstar Wiring Centre is
that it allows the pump to be wired into the wiring centre,
rather than going through the household between the airing
cupboard and the boiler. In replacement installations, this
means the existing 3-core cable between the boiler and
pump can be utilised to carry communication signals (EMS-
BUS) from the wiring centre to the boiler. Experience shows
this can save as much as half a day of installation time.
The Greenstar Wiring Centre uses simple, clear, colour-
coded connections and is supplied with a cylinder sensor
and unique retaining device as standard.
Product info
Part number 7 738 110 116
Control options
The Greenstar Wiring Centre allows the Greenstar 27Ri and
30Ri regular boilers to be compatible with the following
Worcester plug-in controls:
•
Comfort I RF
•
Comfort II RF.
Features and benefi ts
•
Allows digital timers and programmers to be used with a
regular boiler – controls both heating and hot water
•
Enables properties to use a wireless room thermostat
which allows a wider choice of controls options
•
Pump is wired directly into the Wiring Centre and not to
the boiler
•
Simple system-type selector (S or Y plan) – simple, clear
wiring connections
•
Up to three Greenstar Wiring Centres can be linked
together to control up to eight zones
•
Supplied complete with cylinder sensor and unique
retaining device
•
Compatible with Worcester Greenstore unvented cylinders
and third party unvented and vented cylinders*
•
IP44 safety rating increases possible installation locations.
*Please check with the manufacturer. Makes replacement boiler installation much easier.
The innovative Greenstar Wiring Centre enables intelligent control of heating and hot water for systems using our higher
output regular boilers, while also reducing the workload and saving time for the installer.
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