Worcester GREENSTAR HIGHFLOW 440CDI ERP Installation, Commissioning And Servicing Instructions

INSTALLATION
Greenstar Highflow CDi
ErP
- 6720818077 (2016/04)22
All dimensions in millimetres
Fig. 21 Boiler flue outlet positions
[*] Increase this height by 52mm for every metre of horizontal flue
length that the boiler is away from the flue opening
4.4 Flue measuring and cutting
Flue Length guide
Access to combustion chamber for flue installation
▶ Grip the top outer sides of the front panel [1] pull forward to release
the ball catches [2] and lift away from retaining lugs [3].
▶ Remove retaining screw [4] to swing control panel assembly [5]
outwards to its full extent.
▶ Pull clip [6] outwards to release expansion vessel [7].
▶ Swing expansion vessel [7] outwards.
▶ Remove the four screws [8] and remove the inner combustion case
cover [9].
▶ Remove the two screws [10] at the front inside edge of the side
panels [11] and lift the top panel [12] and pull forward to remove for
easier access
Fig. 22 Access for flue connection
NOTICE: Flue installation
▶ Refer to the Flue Kit Installation instructions provided
with your flue kit to correctly install the flue with this
Floor standing boiler
NOTICE: FLUE LENGTH
▶ Do not exceed the maximum straight length for a
horizontal or vertical flue or a 60mm plume
management system (if used) as stated in the
relevant Installation, Commissioning and Servicing
Instructions manual or addendum.
Cutting the flue to an exact measurement is not normally
required as the telescopic flue terminal can allow for
some adjustment.
Maximum effective flue lengths HF 440/550 CDi
ErP
L max. (mm)
60/100 horizontal 4 000
60/100 vertical 6 400
80/125 horizontal 13 000
80/125 vertical 15 000
Table 12 Maximum flue lengths
6720648665-37.1Wo
ZYX
2
13
4
Z
X
Y
123
343
123
743*
+13
267
Flue length range (mm) Cut Number of extensions
140
1)
- 265
1) The flue is cut to a minimum of 130mm the flue connector adds the additional
10mm.
YES None
310 - 530 NO None
530 - 750 NO None
750 - 1260 YES 1
1260 - 1480 NO 1
1480 - 2210 YES 2
2210 - 2430 NO 2
2430 - 3160 YES 3
3160 - 3380 NO 3
3380 - 4000 YES 4
Table 13 Flue extension guidance up to 4000mm
For easier access to the inner case, the expansion vessel
can be unhooked (by removing the retaining screw on
the hinge) lowered and moved to the side. Take care not
to overstretch the flexible pipe connections.
7
3
11
6
2
12
4
10
5
1
8
9
6720818077-11.1Wo

Worcester GREENSTAR HIGHFLOW 440CDI ERP Specifications

General

Model	Greenstar Highflow 440CDi ErP
Category	Boiler
Type	Combi
ErP Rating	A
Hot Water Flow Rate	20 l/min
Fuel Type	Natural Gas
Gas Type	Natural Gas
Warranty	5 years
Mounting	Wall Mounted