Installation manual

11
INSTALLATION WATER HEATER
The water heater must be installed to the requirements of the Installation Manual
supplied with the heater. These instructions do not supersede those instructions, but
are to be followed in conjunction with that manual.
1. Siting the Water Heater.
The water heater should be located on the studded back plate. The necessary
clearance between the boiler and water heater flues is achieved with the backplate
used in a left hand or right hand configuration. The flue terminals should be a
minimum of 2m above the ground whenever possible.
2. Temperature Setpoint.
This can be done in two ways: with controllers or without controllers. If running
cabling for the remotes to the hot water points of use would be to difficult then the
water heater can be used without remotes. The temperature can be set on the dip
switches within the unit. Details are in the water heater manual. The temperature
should be set to the maximum required in the property. In a domestic situation 55C
(the water heater factory setting) should be sufficient. In a commercial setting, and if
there is a secondary return, then 60C should be used.
If the property is undergoing a full refurbishment, or is a new build, then running the
cabling for remotes will be easier. Up to four remotes can be used with the 26i water
heater. At least one of these must be the universal remote (MC-91-1A) that is
supplied with the unit. The other three can be deluxe or universal remotes. If deluxe
units are used at least one must be a Master Controller (MC-70-2A) and the other
two can be Bathroom Controllers (BC-70-2A).
These remotes will give the user the ability to control the hot water temperature at
the point of use. They will also display an error code if there is a problem with the
heater.
MC-91-1A BC-70-2A MC-70-2A