Table Of Contents; Installation Regulations; Technical Data - Worcester Highflow 3.5 OF Installation And Servicing Instructions

CONTENTS
INSTALLATION REGULATIONS
Section 6. Air Supply
Section 13. Commissioning the Appltance
TECHNICAL DATA
Section 7. Flue
Sect1on 14. System GuidancE~
and By-pass Adjustment
Section 1. General Information
Section B. Installing the Appliance Section 15. User's Instructions
Section 2. Siting the Applance Section
9. Sealed Primary Sys1em Section 16. Routine Cleaning and Inspection
Section 3. Removal of Cabinet
Section 10. Open Ven1 Sys1em
Section 17. Replacement of Parts
Section 4. System Considerations
Section 11. Domes1ic Ho1 Wa1er Supply
Section 18. Faull Finding Chan
Section
5.
Installation -Important Section 12. Electrical
Section 19. Shon Pans Lis1
INSTALLATION REGULATIONS
The installation of this appliance must be in accordance with the relevant requirements of the Gas Safety
(Installation and Use) Regulations, local Building Regulations, Building Standards (Scotland) (Consolidation),
current lEE wiring regulations and bye laws of the local water undertaking. It should be in accordance with
the relevant recommendations of the following British Standards and Codes of Practice: BS 6798:1987,
BS 5449:1:1990, BS 5546:1:1990, BS 5440:1:1990, BS 5440:2:1989 and BS 6891.
Gas Safety (Installation and Use) Regulations 1984: It Is the law that all gas appliances are installed by
a competent person, in accordance with the above regulations. Failure to install appliances correctly could
lead to prosecution. It is in your interest, and that of safety to ensure compliance with the law.
The manufacturers notes must not be taken, in any way, as overriding statutory obligations.
TECHNICAL DATA
NOTE: THE DATA PLATE IS POSITIONED BENEATH THE TOP PANEL ON TOP OF THE
ELECTRICAL COVER
Table 1
NOMINAL BOILER RATINGS 110 minutes after lightinJ)
MODE OUTPUT INPUT
BURNER SETTING
GAS RATE
PRESSURE
kW (Btu/hi
kW
(Btu/h)
8.8 (30,000) 12.1 141,300)
11
137,0001 14.9 (50,8001
HEATING
13 (44,3501 17.5 (59, 700)
RANGE
1 5
151,2001 19.9
(67,900)
17 (58,000)
22.5 176,800)
19 (64,800) 24.8 !84,6001
22.9 178,000)
29.1
188,500)
Note: The Pressure test pomt
IS
located on the gas valve (See F1g. 9).
Table 2
SPECIFICATIONS
CENTRAL HEATING FLOW
CENTRAL HEATING RETURN
COLD WATER MAINS IN
DOMESTIC HOT WATER OUT
GAS INLET
HEIGHT
WIDTH
DEPTH
WEIGHT (empty)
PRIMARY CAPACITY
'MAXIMUM STATIC HEAD
'MINIMUM STATIC HEAD
CIRCULATING PUMP
OUTPUT TO HEATING MAXIMUM
OUTPUT TO DOMESTIC HOT WATER
MAXIMUM DOMESTIC HOT WATER FLOW RATE
GAS RATE (after 10min.)
m bar
(in.
w~i
rn
3
/h
2.5 (1.0) II 1 51
3.7 (1 ,5j IL421
5.2 (2.1)
(1.67\
6.7
(2
7)
11 90)
8.5
(3.«) --
''·:51
_____::
10.4 (4,2)
k3ll
---'--
i4.3 (5.7) 12
8·))
28 mm COPPER TUBE
28 mm COPPER TUBE
R% ( J' 2 in. B.S.P.)
22 mm COPPER TUBE
22 mm COPPER TUBE
860 mm (33.9 in.)
550 mm 121.81n I
600 mm 123.6 in.)
95kg 12101bs.l
48 Litres I 10.6 galls.)
25m (81ft.)
1m (39 in.)
Grundfos UPS 15-60
22.9 kW 178,000 Btu/h)
22.9 kW 178,000 Btu/h)
Nominally 15 I/ min
±
15% (3.3 gal./m.)
2.8 dm
3
/h 198.52 ft
3
/h)
.. Appliance static heads are measured from the top of the casmg to the highest point of the system.
2
1ft
3
/h I
140.7)
(50.0)
158.8)
166.9)
(75. 71
(83.3)
(98.5)