Nortek Reznor 120, Installation & Servicing Manual

Page: 25 / 68

2. Installation.
I t is strongly advised that the installer reads Section 1 of
this manual prior to starting any installation work. It is a
requirement that only qualifi ed and competent personnel
undertake installation, commissioning, and servicing.
Warning
Always ensure that the appropriate personal protective
equipment is used.
2.1 Packaging/siting
The heater will usually be supplied wrapped in heavy gauge
polythene, non assembled parts will be supplied separately.
Prior to installation, the assembly of the heater should be
completed, it is advisable that this is undertaken in the area
where the heater is scheduled to be sited.
Caution
It is strongly advised that when positioning the heater the
lifting eyes are used, thereby reducing the risk of inadvertent
damage being occasioned to the heater.
2.2 Flooring
The heater must be installed on a level non-combustible
surface capable of supporting the weight of the heater and
any ancillary equipment.
2.3 Minimum clearances
The following minimum clearances (in millimeters) are
recommended when installing the heater.
Model Front Rear LHS RHS
30 - 40 500 700 150 150
60 - 85 500 1000 150 150
120 - 135 600 1200 150 150
180 600 1500 150 150
205 900 1500 150 150
235 - 300 900 2000 400 400
375 900 2000 500 500
2.4 Assembly
The following sub-assembly parts should be assembled to
allow installation to continue.
(a) Vertical Nozzled Models
For free blowing applications it will be necessary to complete
the fi nal assembly before continuing with the installation. The
bonnet top with nozzle spigots should be attached to the
heater and secured. The nozzles should then be pushed home
on the spigots and positioned to provide the desired airfl ow.
Ensure louvres are adjusted outwards and ensure blades are
not resonating.
The nozzles should be securely fi xed in their desired position
on completion of commissioning.
(b) Horizontal Nozzled Models
Remove packaging and secure the 90° Duct Outlet to the
outlet on the heater using the bolts supplied.
Secure the nozzle spigot plate to the duct outlet using the
bolts and prevailing torque nuts provided. Fit the securing
brackets to each of the outlet nozzles, and lift the complete
heater assembly and position on the pre-sited purpose built
supports. Finish off the assembly by fi tting and securing the
outlet nozzles to the spigots by way of previously fi tted
brackets.
2.5 Flue Installation
An integral fl ue spigot is fi tted to all Cabinet Heaters thereby
allowing the fl ue to connect directly to the heater.
The design of the fl ue must ensure that it can be disconnected
to allow for cleaning and servicing, furthermore, all of the fl ue
section joint sockets must face upwards, and the seal between
the sections achieved through mechanical joints or through
the use of approved caulking string and grout.
Caution
It is strongly advised that BS 5854 and BS 5440 parts 1 and 2
are referred to. See also terminal details on page 15 & 16
Where condensation is likely to be a problem provision should
be made preferably at the design stage (see section 1.13)