1. INTRODUCTION
The WIDNEY RSW10KL is a wall hung, room sealed, fan assisted, microprocessor controlled fully modulating gas
water heater for providing domestic hot water. It is particularly suitable for Caravan Holiday Home and Park Home
use. It is not suitable for use in road going vehicles. (Product details can be found on the data label located on the side
of the appliance)
Your water heater will operate and control the water to your taps and showers completely automatically.
The RSW10KL is designed for the modern home and has built in features to ensure safe and reliable operation with
minimum maintenance. It is recommended that the water heater is service annually in accordance with the
requirements as detailed in these instructions; failure to correctly maintain the water heater may invalidate the
warranty. If service is required or in the unlikely event of a fault occurring please in the first instance refer to the fault
diagnostic table in this document. The table will advise on the correct course of action. In most cases the fault
diagnostic chart will indicate the problem and by reviewing the actions in most cases any faults are easily and quickly
rectified.
It is essential that these instructions are strictly followed for the safe and economical operation of this appliance.
The appliance is a fan-assisted room sealed gas water heater and therefore the flue terminal MUST NOT BE
OBSTRUCTED under any circumstances. If it is damaged, turn off the appliance and consult your installer, or service
engineer. If it is known or suspected that a fault exists please refer to the fault diagnostic table in the document. If
rectification is required the appliance MUST NOT be used until the fault has been rectified by a registered person.
2. PRECAUTIONS AGAINST FREEZING DURING WINTER STORAGE
During cold periods and if the water heater is situated in a place liable to freeze, the water must be completely drained
from the water heater as follows:
1. Turn off the cold water Supply.
2. Open all the hot water outlet taps on the installation.
3. Release the drain plugs fitted at the lowest point of the pipe work.
4. Open the bleed valve on the side of the water inlet fitting a few turns to allow air into the system.
NOTE: There is no drain plug fitted to the hot water heater side of the water heater.
When the operation is finished, close the hot water outlet taps and replace the drain plug and tighten the bleed valve
on the side of the water inlet fitting.
To put the water heater back into service, open the cold water supply.
NOTE: In a Caravan Holiday Home installation there may be a drain cock on the cold inlet under the van
directly below the water heater which may be used.
SAFETY