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LOGIC+ COMBI C35
Ideal Heating LOGIC+ COMBI C35 User Manual
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When replacing any part on this appliance, use only spar
e parts that you can be assured conf
orm t
o the safety and perfor
mance
specication that we requir
e. Do not use rec
onditioned or copy parts that hav
e not been clear
ly authorised by Hunt He
ating.
November 2
020
UIN 225325 A03
INS
T
ALLA
TION
& SERV
ICING
LOGIC
+ C
OMBI
C35
HEA
TING
2
Table of Contents
Table of Contents
4
General
8
Introduction
8
Operation
8
Safe Handling
8
Optional Extra Kits
8
Safety
9
Safe Handling of Substances
9
Location of Boiler
9
Gas Supply
9
Flue Installation
10
Terminal
11
Air Supply
11
Water Circulation System
11
Boiler Control Interlocks
11
Electrical Supply
11
Condensate Drain
11
Boiler Dimensions, Services & Clearances - Internal
12
Boiler Dimensions, Services & Clearances - External
13
System Requirements - Central Heating
14
System Balancing
15
Water Treatment
15
Installation
16
Internal Boiler Assembly - Exploded View
16
External Boiler Assembly - Exploded View
17
Unpacking - Internal Boiler
18
Unpacking - External Boiler
18
Front Panel Removal
19
Wall Mounting Template
19
Preparing the Wall
19
Fitting the Wall Mounting Bracket - Internal Boiler
20
Mounting the Boiler - Internal
20
Fitting the Wall Mounting Bracket - External Boiler
20
Mounting the Boiler - External
21
Attaching Weather Shield
22
Determining the Flue Length and Flue Packs Required
23
Cutting & Setting the Flue Length
24
Installing the Flue (Internal Boiler)
24
Fitting the Optional Roof Flue Kit
25
Assembling the Roof Flue Kit
26
Condensate Drain
27
Connections & Filling
28
Electrical Connections
29
Installer Wiring
29
Replacing Pre-Fitted Mains Cable
30
Wiring Diagram
31
Commissioning and Testing
32
Initial Lighting
33
The Display
34
General Checks
38
Restart Procedure
39
Handing over
39
Servicing
40
Servicing Schedule
40
Boiler Front Panel Removal / Replacement
41
Weather Shield Removal / Replacement
41
Fan and Venturi Assembly Removal and Cleaning
42
Burner Removal and Cleaning
43
Cleaning the Condensate Trap/Siphon
43
Cleaning the Heat Exchanger
44
Reassembly
44
Replacement of Components
45
Fan Replacement
45
Burner Injector Replacement
46
Burner Replacement
46
Return Thermistor Replacement
47
Ignition Electrode Replacement
47
Flame Detection Electrode Replacement
48
Spark Generator Replacement
48
Gas Control Valve Replacement
48
Diverter Valve Actuator Replacement
49
Condensate Trap / Siphon Replacement
49
PCB Replacement
50
DHW Flow Turbine Sensor Replacement
51
Draining the Boiler
51
Pressure Gauge Replacement
51
Safety Relief Valve Replacement
52
Pump Automatic Air Vent Replacement
52
DHW Filter & DHW Flow Regulator Cleaning / Replacement
52
Diverter Valve Body Assembly Replacement
53
DHW Plate Heat Exch. Replacement
53
Pump Head Replacement
53
Water Pressure Switch Replacement
54
Flow Thermistor Replacement
54
Heat Engine Replacement
55
Expansion Vessel Recharging & Replacement
56
Fault Finding
57
Fault Finding Chart Main Menu
57
Overheat Lockout
59
Ignition Lockout
59
Flame on before Gas Valve on
60
Low Water Pressure
60
Flame Loss
60
Fan Fault
61
Flow Thermistor Fault
61
Return Thermistor Fault
61
Outside Sensor Fault
62
No CH Operation but DHW Works OK
63
No HW but CH on
64
No Display
64
Spare Parts
65
Commissioning & Servicing
67
4
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Ideal Heating LOGIC+ COMBI C35 Specifications
General
Brand
Ideal Heating
Model
LOGIC+ COMBI C35
Category
Boiler
Language
English
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