Appliance Connections - Worcester Greenstar i System ErP Series Installation, Commissioning And Servicing Instructions

Installation
4
1 3 3 m m
Fig. 24 Marking the flue position
Fixing the wall mounting frame
▶ Remove the wall mounting template.
▶ Secure the wall mounting frame to the wall, with appropriate fittings
for appliance weight and wall type.
5.3

Appliance connections

CAUTION: When working on appliance connections.
▶ Isolate the mains gas supply before starting any work
and observe all relevant safety precautions.
▶ Isolate/drain water pipework to be connected to and
observe all relevant safety precautions.
Gas, water and condensate connections
▶ System pipes may be run vertically upwards behind the appliance or
below it, ( figure 19, section 4.8.1 on page 23).
Fitting the condensate pipework
Pre-fit the plastic condensate drain pipe through the wall frame as
shown in figure 25.
▶ Secure the pipe to the wall at the last joint.
▶ Ensure the pipe protrudes through the wall frame by 25mm.
▶ If exiting through the wall, to run externally, the pipe must have a 3°
fall and be increased to a 32mm insulated pipe.
30
1
3
Fig. 25 Condensate drain pipe work detail
Preparing the wallframe
2
▶ Fit sealing washers to service valves before hanging appliance.
1
Fig. 26 Sealing washers
[1]
[2]
[3]
▶ Pull the extended lever [1] forward and down until there is no further
Fig. 27 PRV connection in the down position
25mm
The bonded washer supplied is for the Gas connection
only.
1
2
CH flow (22mm)
Gas inlet (22mm bonded washer)
CH return (22mm)
NOTICE: Before hanging the appliance onto the wall
mounting frame ensure that the pressure relief valve
connection is in the DOWN position refer to figure 27.
▶ This is located on the right hand side of the wall
frame at the rear.
▶ Apply a smear of silicone lubricant to the seal to ease
connection later.
travel.
Greenstar i System
3
1
- 6 720 806 945 (2015/07)
ErP