Technical data

See Fig. 2 and 3.
The Data Plate is fixed to the top of the control box casing.
VERTICAL BALANCED FLUE.
Instructions describing the fitting of the vertical balanced flue
system are sent with the vertical flue kit.
IMPORTANT: It will be necessary to purchase at least one 90°
flue bend when installing the vertical balanced flue system.
NOTE: The maximum overall height of the vertical balanced flue
measured from the top of the appliance casing to the top of the
vertical balanced flue terminal is 5600 mm.
3. Technical Data
5
FLUE DETAILS
mm
CEILING HOLE DIAMETER 130
MINIMUM AIR DUCT LENGTH 100
MAXIMUM AIR DUCT LENGTH 4500
VERTICAL TERMINAL LENGTH 1100
Table 3: Vertical Flue System
FLUE DETAILS
mm
WALL HOLE DIAMETER 120
WALL HOLE DIAMETER FOR INTERNAL FLUE FIXING KIT (OPTIONAL) 150
STANDARD HORIZONTAL FLUE MINIMUM LENGTH SIDE AND REAR 100
STANDARD HORIZONTAL FLUE MAXIMUM LENGTHS – REAR KIT WITH ADAPTOR 500
– SIDE KIT WITH ELBOW 1000
EXTENDED HORIZONTAL FLUE MAXIMUM LENGTH – SIDE AND REAR 3000
Table 2: Horizontal Flue System.
NOTE: Gross Heat Input x 0.901 (NG) or x 0.922 (Propane) = Net Heat Input.
NOTE: 1. Optional extra flue bends are available. The maximum flue length is reduced when an extra flue bend or bends are used. to Note
2. When using two flue bends the maximum extended straight flue length must not exceed 2300 mm.
3. When using three flue bends the maximum extended straight flue length must not exceed 1000 mm .
4. See Section 11 “Flue Options” for further information.
5. No more than three 90° flue bends can be used.
NOMINAL BOILER RATINGS
(10 minutes after lighting)
MAX. OUTPUT kW 24.0 24.0
MAX. INPUT (net) kW 27.0 26.7
BURNER PRESSURE mbar 13.5 28.7
GAS RATE m
3
/h 2.90 1.09
MIN. OUTPUT (CH) kW 11.0 11.0
MIN. INPUT (CH) (net) kW 13.5 13.0
BURNER PRESSURE mbar 3.5 6.4
GAS RATE m
3
/h 1.45 0.54
MIN. OUTPUT (DHW) kW 8.8 8.8
MIN. INPUT (DHW) (net) kW 10.9 10.3
BURNER PRESSURE mbar 1.0 3.5
GAS RATE m
3
/h 1.11 0.42
Table 1
BOILER ADJUSTED FOR
G20 (Natural Gas)
BOILER ADJUSTED FOR
G31 (Propane)