10 92908135-17
CD3 SERIES CLOSE CONTROL UNIT INSTALLATION
An envelope containing important user information is supplied with the indoor unit. Please pass to the end user.
1. The Packaged units are supplied for Upflow operation with front return air and top discharge.
Configured units are supplied for Upflow or Downflow operation. Standard upflow units are supplied with front return
air and top discharge; Downflow units with top return air and front discharge.
Units may be ordered with other airflow configurations or altered on site. Other configurations include:
Upflow: (wall mounted) with bottom return air.
with front or top discharge, wall or floor mounted.
Downflow: with top return air and under floor discharge.
See page 9 for all available configurations.
Note:- The required airflow arrangement must be configured prior to installation.
2. The chassis is made up of removable panels. The central panel, with control panel inset, MUST be removed first
using the two keys provided.
UNIT ACCESS AND CABINET STRIP DOWN
1 If a door interlock isolator is fitted, ensure that the switch is turned to the OFF position.
2 Using the keys provided, unlock the electrics access panel. Remove the panel by easing outwards and down.
3 The side panels can be removed by releasing the two swell latches located through the side bulkheads within the
electrics compartment and carefully pulling outwards until they are clear of the upper and lower grabber catches.
4 Access to the fan section, (and coil section in the downflow mode), can be gained by releasing the appropriate swell
latches located through the cut outs to the front of the side bulkheads and removing the panel.
5 The return air grille is removed by turning the 4 retaining screws anticlockwise, until a click is heard, and pulling the
grille outwards.
MOUNTING
1 It is recommended that ALL field fit kits are installed prior to mounting the unit and brazing the pipe work.
2 Ensure that the wall or floor will accept the operating weight of the unit; weights shown below include the plenum.
Upflow units with plenum
fitted
NOTE:-When wall mounting, the unit should be lifted into position using the pallet provided.
3 Mark off the mounting holes as shown and drill holes to suit M6 Rawlbolt shields or equivalent fasteners.
4 If a fresh air facility is required, the appropriate apertures must be prepared to match up with the positions of the
unit fresh air inlets as shown in the diagrams following. Any opening in the external wall must be suitably lined and
screened to prevent brick dust entering the unit during installation and operation.
5 Mount the unit as required and secure all fixing bolts
6 Check that the unit is square and level. Failure to do so will result in misalignment of the cabinet access panels and
possible operational problems.
