Recommended Spares - Hamworthy FLEET Series Installation, Commissioning And Operating Instructions

Wall hung, condensing , room sealed, fully modulating, pre-mix, gas fired boilers for heating & domestic hot water installations

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Table Of Contents

Table of Contents

All models - reassemble in reverse order using new

gaskets and check all joints for gas soundness.

11.8 Main control pcb - LMU - refer to spares list

The LMU is located on the electrical control panel which

is secured to the boiler chassis by 2 spring latches. Pull

the panel forward to disengage the latches.

If a 'clip in module' is fitted, this must be removed and

transferred to the new LMU. Carefully disconnect the

plug connecting the clip in to terminal X40 or X50.

Depress the latch at the plug end of the clip in and

disengage the module from the LMU.

Unplug all electrical connections from the LMU noting

respective positions. Remove the 4 - M5 screws

securing the LMU to the panel and withdraw.

Fit the replacement control in reverse order. Remember

to apply the parameters local to the installation - refer to

section 8.

11.9 Display screen - Part no. 533901437

Carefully disconnect the ribbon cable connecting the

screen to the LMU terminal X30. Remove the 4 screws

securing the screen to the fascia moulding, taking care

12.0 RECOMMENDED SPARES

Please Note:- To ensure the correct spare parts are despatched by our spares department, it is imperative that the

complete Boiler/Module/Control Panel Serial Numbers are given. The Boiler and Module Serial Numbers are located on

the Data Plates affixed to the combustion chamber front panel. The Electrical Panel Serial Number is located inside the

Control panel on the rating label. These numbers MUST be quoted when ordering spare parts.

SPARES ITEM

ELECTRICAL ITEMS

LMU control - F40W Nat Gas ....................................................................................................................................... 533901641

LMU control - F50W Nat Gas ....................................................................................................................................... 533901642

LMU control - F60W Nat Gas ....................................................................................................................................... 533901643

LMU control - F70W Nat Gas ....................................................................................................................................... 533901644

LMU control - F85W NatGas ........................................................................................................................................ 533901645

LMU control - F100W Nat Gas ..................................................................................................................................... 533901646

LMU control - F125W Nat Gas ..................................................................................................................................... 533901647

LMU control - F150W NatGas ...................................................................................................................................... 533901648

Display PCB ................................................................................................................................................................... 533901437

HT Ignition Transformer ............................................................................................................................................... 533901542

Flow / Return Sensor ...................................................................................................................................................... 533901549

Flue Gas Sensor . ........................................................................................................................................................... 533901549

Water Flow Switch . ........................................................................................................................................................ 533901548

Temperature Limiter ....................................................................................................................................................... 533901583

HT Ignitor Electrode ........................................................................................................................................................ 533805029

Ht Ignitor Lead .............................................................................................................................................................533901547

Flame Sensing Probe ..................................................................................................................................................... 533805021

On/Off switch . ................................................................................................................................................................ 533925009

Fascia fuse T2A . ............................................................................................................................................................ 533922009

Clip in Module - vfc + 0~10v - AGU2.511A109 ............................................................................................................ 533901438

Clip in Module - LPB Bus communication - OCI420A109 ........................................................................................... 533901456

HAMWORTHY HEATING LTD

not to loose the button covers, which are loose when the

assembly is separated.

Refit the button covers to the new display and secure to

the fascia moulding.

11.10 Low gas pressure switch - Part no. 533901497

Isolate the gas supply using the valve located in the

bottom left hand corner.

Disconnect the electrical plug after removing the

securing screw. Remove the screw securing the switch

to the gas inlet fitting on the gas supply pipe.

When re-fitting a replacement switch remember to set