Johnson & Starley LE155 & LE250 MVHR User Instructions

Hello! I've reviewed the provided user instructions for the Johnson & Starley LE155 and LE250 ventilation systems. This document outlines the system's operation, including its mechanical ventilation, heat recovery, and various control options. I am ready to answer your questions about these devices and their use.
How is the ventilation system turned on?

How is manual boost controlled?

How often does the unit need servicing?

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Johnson & Starley

USERS INSTRUCTIONS

Rhosili Road, Brackmills, Northampton NN4 7LZ

Main Switchboard Tel: 01604 762881 Fax: 01604 767408

Spares Tel: 01604 707012 Fax: 01604 764879

Service Tel: 01604 707011 Fax: 01604 707017

www.johnsonandstarley.co.uk

1. INTRODUCTION

The LE155/LE250 systems provides whole house mechanical ventilation to living areas and

bedrooms. The heat from the LE155/LE250 is recovered from stale contaminated air drawn

from bathrooms and utility rooms in conjunction with stale air from the kitchen; drawn through

a cooker canopy if fitted. The LE155/LE250 uses a high performance heat exchanger that

recovers heat and uses it to temper the incoming fresh air.

This type of system complies with Approved Document F of the Building Regulations F1 Means

of Ventilation.

Note: Installation of the LE155/LE250 will have been commissioned and balanced by a

competent person.

2. INSTRUCTIONS FOR USE

2.1 Turn on the LE155/LE250 appliance at the fused spur.LE250 appliance at the fused spur. appliance at the fused spur.

2.2 The LE155/LE250 unit will now commence extraction at the minimum set speed.LE250 unit will now commence extraction at the minimum set speed. unit will now commence extraction at the minimum set speed.

2.3. Manual Boost can either be controlled by a Remote Control Switch (optionally supplied

by J & S) or a light pull cord, or a remote humidistat. Instructions for these are supplied

by the installer.

2.5 The period of time that the unit will run at boost speed will depend upon the type of

automatic boost control fitted.

2.6 Servicing of the LE155/LE250LE250 unit is required annually.

Periodically

2.6.1 Clean any in-line filter that may be fitted

in accordance with the filter’s instructions.

2.6.2 Clean the kitchen extract grille filter (if

fitted) by washing in a soap solution.

2.6.3 Clean the filter in the cooker hood (if fitted)