14 48008002-06
EXTERNAL SURFACES
The unit casings and access panels should be checked for any signs of corrosion. Any rust found should be cleaned and the area
treated to prevent any further rusting.
ROUTINE MAINTENANCE SCHEDULE
Item
Variable
6
Monthly
Yearly
Page
Motors
●
11
Fan Impeller
●
11
Condensate Tray
●
12
Coils
●
12
Filters
●
13
External Surfaces
●
13
Insulation and seals
●
13
WHEN MAKING ENQUIRES FOR SPARES YOU WILL NEED TO HAVE THE FOLLOWING INFORMATION AVAILABLE,
UNIT MODEL, SERIAL NUMBER, QUK NUMBER (QUK NO. IS THE FIRST 4 DIGITS OF THE WIRING DIAGRAM)
THIS INFORMATION IS REQUIRED TO IDENTIFY THE CORRECT SPARES.
WIRING DETAIL, CONTROLS, and ANCILLARY EQUIPMENT
GENERAL
For wiring information refer to the wiring diagram fitted to the unit.
Controls fitted may be one of the following arrangements:-
a) Heating only.
b) Heating using electric elements.
c) Cooling only.
d) Heating and cooling in sequence with a dead band between modes.
Normally the Cooling medium will be chilled water. Heating medium will normally be L.P.H.W but alternative coils are available to
suit secondary water temperatures.
Alternatively Electric Heating elements are available, and can be supplied wired for single phase or three phase supply as
appropriate or as specified.
Multiple units fitted on the same system may be controlled through one controller wired through a master unit, or controlled through
individual controllers.
Refer to Layout Drawings or the Design Specification for individual unit control requirements, check the serial plate for specification
details.
For Fault finding and commissioning of the controls,
refer to controls manufacture’s technical data.
CONTROLS-MAJOR COMPONENTS
Item
Master Unit(s)
Slave Unit(s)
Transformer 240/24VAC
1 off
N/R*
Controller
1 off
N/R*
Heating. 4 port valve (if specified) Or,
Contactor for Electric Heating
1 off
1 off
Single Stage
1 off
1 off
Cooling 4 port valve (if specified)
Temperature Detector
1 off
1 off
Return air or room mounted
1 off
As required N/R
*Note: The number of slave units is limited by the controller output and varies from manufacturer to manufacturer. If in
doubt please contact TEV LTD
.
Slave units are fitted with a transformer to provide multi-speed selection.
We reserve the right to alter designs and specifications at any time without notification
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