Johnson & Starley JB25P MK 5 - User Manual

WARNING: THIS APPLIANCE MUST BE EARTHED
This appliance is for use with liquid petroleum gas G31, and is approved for use in GB, IE, FR, NL BE & NO,
IMPORTANT: STATUTE LAW DEFINES THAT ALL GAS APPLIANCES MUST BE INSTALLED, COMMISSIONED
AND MAINTAINED BY COMPETENT PERSONS, (ie CORGI REGISTERED INSTALLERS) IN ACCORDANCE
WITH THE GAS SAFETY (INSTALLATION AND USE) REGULATIONS (CURRENT EDITION). FAILURE TO
COMPLY WITH THESE REGULATIONS MAY LEAD TO PROSECUTION.
1. BRIEF DESCRIPTION
1 Air Filter
2 Air circulating fan
3 Fuse
4 Time control
5 Data plate
6 Fan Delay Control
7 Multifunctional control
8 Pilot burner
9 Main burner assembly
10 Gas connection
11 Limit Switch
12 Control panel
13 Piezo unit
14 Summer air circulation switch
15 Spillage monitor device (TTB) (at rear)
16 Draught Diverter
Fig. 1
1.1 JB25P is an open-flued, fan assisted downflow, ducted warm air heater. A Spillage Monitoring Device is fitted which
senses the temperature around the draught diverter, and shuts down the appliance when this temperature rises due to the
presence of flue gases.
1.2 The Air heater output is 7.6kW (27.5MJ/h, 26,000Btu/h). “Summer air circulation” of unheated air is available by manual
selection (see User’s Instructions).
1.3 For Caravan installations, Slot Fit Kit ATL30 is available for this appliance. For Permanent Dwellings, Free-Standing Kit
TC30 and Slot Fit Kits TS30 and TSA30 are available for this appliance.
THIS APPLIANCE CONFORMS TO BS EN 55014
JB25P MK 5 WARM AIR HEATER
INSTALLATION, COMMISSIONING & SERVICING INSTRUCTIONS
G.C. No 42 416 13
Publication No. ZZ 1031/4
August 2004
These instructions are to be left with the User or adjacent to the Gas Appliance
1
Johnson and Starley prides itself on its ability to supply spare parts quickly and efficiently. If you have a problem in
obtaining a spare part, please contact Johnson and Starley Spares Department at the address below.
JOHNSON & STARLEY LTD.
Telephone: (01604) 762881 Rhosili Road,
Brackmills,
Telefax: (01604) 767408 Northampton NN4 7LZ
1
9
8
5
14
2
16
15
12
3
4
11
6
7
13
10
10. SHORT LIST OF SPARES
ITEM G.C. MAKER’S DESCRIPTION QTY
No No No
1 381 732 1000-0500130 Fan assembly 1
2 244 925 B300-0182000 Filter tray assembly 1
3 232 962 CL2S Time control CL2 1
4 244 926 1000-0000070 Time control cover 1
5 384 739 BOS 00105 Limit Switch 1
Honeywell L4069C
6 H26-712 1000-0709640 Multifunctional control 1
Honeywell V8600C 1129
7 232 903 BOS 02061 Sealing ring (for item 6) 2
8 173 096 1000-0704810 Pilot assembly 1
9 E01 088 1000-0703070 Pilot Injector SIT 0.977.149-(15) 1
10 386 820 1000-0703870 Thermocouple SIT 0.290.174 1
11 386 775 BOS 01970 Electrode 1
12 397 819 1000-0705400 Electrode lead 1
13 244 898 BOS 02406 Electrode Nut 1
14 E02 398 B302-0116000 Spillage switch (TTB) 1
15 B265-0800000 Burner and Control Assembly 1
16 E00 411 1000-0705070 Main Burner Arm Furigas 174.500.016 1
17 1000-0708140 Main Injector Bray Cat 23/380 1
18 E02 399 B264-0300005 Heat Exchanger exchange kit 1
19 386 571 1000-0700570 Piezo Unit 1
20 E02 391 B302-0707000 Igniter Bracket 1
21 244 957 1000-2500010 Rope Ring Seal (heat exchanger access cap) 1
22 244 927 1000-0500275 Control Panel 1
23 E02 392 1000-0517730 Wiring Harness 1
24 385 159 BOS 00104 Fan Control Honeywell L4068C-1125 1
25 245 504 1000-0513820 Fuse 3.15A, (T) 1

Summary

Installation, Commissioning & Servicing Instructions

General Warnings and Approvals

Crucial safety, usage approvals, and legal compliance notes.

Heater Component Identification

Identifies key parts of the JB25P warm air heater.

Heater Compartment and Clearances

Compartment Installation Guidelines

Specific rules for fitting the heater into various spaces.

Ventilation and Combustion Air Requirements

Specifies air flow needs for operation.

Duct System Installation

Return Air Ducting Guidelines

Details duct routing, material, and sizing for return air.

Delivered Air Ductwork Design

Covers insulation and design for supply air ducts.

Flue Installation

Flue System Standards and Connections

Covers joints, length, support, and connections.

Flue Sizing and Calculation

Explains how to calculate equivalent flue height.

Flue Performance and Safety Checks

Procedures to ensure the flue operates correctly.

Electrical System Installation

Mains Supply Connection

Details wiring for the 230V supply and fuse rating.

Room Thermostat Installation and Location

Covers placement criteria and wiring.

Commissioning Procedures

Gas Supply and Connection

Covers gas pipe requirements and connections.

Preparation and System Balancing

Pre-checks and air flow adjustments.

Pilot and Main Burner Ignition

Step-by-step guide to lighting the burners.

Burner Pressure and Temperature Checks

Main Burner Pressure Adjustment

Setting the correct gas pressure for the main burner.

Temperature Rise Verification

Ensuring correct heat output and fan speed correlation.

Automatic Controls and Safety Checks

Control System Operation Verification

Checking thermostat, time control, and fan sequences.

Critical Safety Tests

Spillage tests, fail-safe operation, and limit switch checks.

User Instructions and Operation

Heater Operation and Control Use

How to use controls, ignite, and extinguish.

User Level Maintenance Advice

User-level cleaning and servicing advice.

Maintenance Procedures

Routine Maintenance Tasks

Periodic checks and cleaning.

Component Removal and Cleaning

Procedures for specific parts like burners and filters.

Component Removal and Servicing

Pilot Burner and Control Unit Removal

Removal instructions for these components.

Fan, Panel, and Piezo Unit Removal

Removal instructions for these components.

Component Access and Removal

Time Control and Switch Removal

Steps for removing specific controls.

Heat Exchanger Access Procedure

How to access the heat exchanger for inspection or replacement.

Defect Diagnosis and Troubleshooting

Common Fault Symptoms and Remedies

Guide to identifying causes and resolving issues.

Johnson & Starley JB25P MK 5 Specifications

General

Model	JB25P MK 5
Manufacturer	Johnson & Starley
Category	Heater
Fuel Type	Gas
Ignition	Electronic
Safety Features	Flame Supervision Device, Overheat Thermostat
Gas Type	Natural Gas