3
isar -
Installation and Servicing
GENERAL
CONTENTS
Air Supply ....................................................................... 7
Boiler Clearances ......................................................... 6
Boiler Exploded Diagram ............................................ 11
Condensate Drain ................................................... 8, 22
Electrical Connections ............................................... 23
Electrical Supply ........................................................... 8
Extension Ducts - Fitting ............................................. 17
Fault Finding ........................................................... 48-52
Flow Wiring Diagram .................................................. 26
Flue Fitting .................................................................... 16
Flue Installation ............................................................. 7
Gas Safety Regulations ................................................ 5
Gas Supply ..................................................................... 7
Installation ............................................................. 11- 29
Mandatory Requirements .......................................... 5-8
Pump .......................................................................... 45
Servicing ................................................................ 30-47
Short List of Parts ....................................................... 53
Thermostatic Radiator valves ..................................... 8
Water and Systems ...................................................... 7
Water Connections ............................................... 20-21
Water Treatment ......................................................... 10
Wiring Diagrams ................................................... 23-26
isar
Natural Gas only
Boiler size
G.C. Appliance No.
PI No.
HE24
47 348 31
0063 BO 3317
HE30
47 348 30
0063 BO 3317
HE35
47 348 29
0063 BO 3317
Destination Country: GB, IE
NOTE TO THE INSTALLER: LEAVE THESE
INSTRUCTIONS ADJACENT TO THE GAS METER.
ALSO COMPLETE THE BENCHMARK LOG BOOK
AND GIVE THIS TO THE CUSTOMER.
BENCHMARK LOG BOOK DETAILS
B
oiler
Page
Make and model ....................................................... 3
Appliance serial no. on data badge ....................... 11
SEDBUK No. % ......................................................... 2
Controls
Time and temperature control to heating ............. 24
Time and temperature control to hot water .......... 24
Heating zone valves .............................................. n/a
TRV's ......................................................................... 8
Auto bypass .............................................................. 8
Boiler interlock .......................................................... 8
For all boilers
Flushing to BS.7593 .............................................. 10
Inhibitor .................................................................. 10
Central heating mode
Heat input ................................................ to be calculated
For assistance see Technical Helpline on the back page
Page
Burner operating pressure ...... measure and record
Central heating flow temp. ...... measure and record
Central heating return temp. ... measure and record
For combination boilers only
Scale reducer ......................................................... n/a
Hot water mode
Heat input ............................................................... n/a
Max. operating burner pressure .............................. n/a
Max. operating water pressure ............................. n/a
Cold water inlet temp ............................................ n/a
Hot water outlet temp. ........................................... n/a
Water flow rate at max. setting .............................. n/a
For condensing boilers only
Condensate drain .................................................. 21
For all boilers:
complete, sign & hand over to customer
For GB, to comply with Building Regulations Part L1 (Part J in Scotland) the boiler should be fitted in accordance with the
manufacturer's instructions. Self-certification that the boiler has been installed to comply with Building Regulations can be
demonstrated by completing and signing the Benchmark log book.
