Instructions premix Air heaters type XR10.. 60
Page 5/15
Installation
6.1 Positioning
•
Check that the support is solid enough.
•
Keep sufficient distance between the heater and any
obstruction , in connection with safety and access for
service and maintenance. Pay particular attention to
any flammable materials. Please take into account
the possibility to open the door of the heater for the
necessary service and maintenance work . Make
sure the air flow to and from the heater is
unhindered. Any obstacles should be a minimum of
5 metres away from the front of the heater.
•
The heater can be installed horizontally or vertically,
the positioning is completely free.
•
The heater is provided with 2 off M12 threaded sockets as fixing
points (see the dimension diagram). The types 40, 50 and 60
also have four M10 threaded sockets on the top as fixing points.
Use preferably the Winterwarm suspension kits.
•
Make sure that after fitting, there is no mechanical tension on any
connecting gas or electric supplies.
•
If the heater is installed with the air stream vertical downwards
the maximum suspension height is 8 meters. Otherwise the warm air will not reach the floor.
Attention:
See the application-restrictions in this manual (Chapter 4) for further installation restrictions.
6.2 Gas connection
The gas supply line has to meet the national valid requirements and possibly the local
requirements of the building inspector, police or fire brigade. (In GB it must comply with Gas
Engineers publication UP-1 and UP-2 together with BS 6891.
A manual isolation valve in the supply line must be placed within reach of the heater, and all gas
lines must not be mounted under mechanical tension.
When testing the supply lines with pressures above 60 mbar, this manual valve at the heater
must be closed.
The working and standing supply pressure must be a minimum of 17 mbar, and a maximum of
30 mbar ,measured at the inlet pressure nipple of the gascontrol in the heater .
6.3 Electrical connection
6.3.1 230Vac supply
The installation must comply with local and national requirements, ( as well as IEE regulations)
The unit heater is delivered completely wired internally, where controls of any type are to be
added (eg. room thermostat) , the relevant wiring diagrams must be adhered to. Never use a
room thermostat to interrupt the electrical supply to the heater!
Make provisions to completely isolate the heater for maintenance purposes. This can be an
isolation switch (min.3mm contact opening gap) , a power plug or a nonswitched fuse spur. The
wiring diagram for the heater can be found towards the end this manual.
The supply is 230Vac. with earth. The control circuit is 24 V.
