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PIPE INSTALLATION & CONTROL WIRING

The pipe work consists of a

" tube (return gas) running between the Con/set and

the A/H. The

" line must be insulated with 10 x 10

mm foam rubber insulation.

Connection is made at the side of the Con/set. Pipe work

may be run internally to the A/H, or may be run through

holes in the floor and run externally to a convenient

re-entry point, or the pipes may be built into the

wallspace during van construction. NB. Pipework

installed in walls must be well insulated to avoid

"sweating" and possible long term moisture damage.

The control wiring will normally follow the pipework

and be taped to it. NB. If the control cable is to be run

externally, then it must be run in a suitable conduit.

Now refer to the A/H installation, after which we return

to the Con/set to open up the refrigeration circuit and fit

the panel.

AIR HANDLER INSTALLATION

If possible, the A/H should be installed at either end of the van, such that unimpeded air flow is obtained

down the length of the van.

If this is not possible, install the A/H in as central a position as possible.

6 MOST IMPORTANT POINTS THAT MUST BE SATISFIED

1. The distance from the back of the cupboard to the back of the A/H must not be less than 90 mm

to allow proper air entry to the fan. Insufficient gap will also increase the noise level.

2. Two separate return air grilles/filters are supplied, and must be installed. If only one is used, this

will reduce the air volume back to the fan and hence the capacity of the airconditioner.

3. The airhandler must be fitted allowing a minimum space of 25 mm between the right hand of the

A/H and the wall, and likewise 25 mm between the top of the A/H and the inside top of cupboard.

4. The return air grilles/filters, should be fitted as far back as is possible to provide a more direct

path for air to flow back to the fan.

5. The A/H has a condensate drain underneath. This drain must continuously "fall" from the outlet. It

is recommended that the bottom of the A/H be 75 mm above the bottom of the cupboard, to allow

adequate fall.

A lesser amount is ok, provided much care is exercised to avoid "humps" that will result in

airlocks and backup & overflow of condensate.

6. The A/H must be supported from beneath.

It is recommended that the minimum cupboard dimensions be

The Air Handler has been designed to operate in a cupboard or enclosure as described on this page.

Under no circumstances is the resistance to airflow to be increased by ducting the supply or return air.

Refer to fig. 7 & 8 and the full size template provided in the kit

" tube (liquid line), and a

525 wide x 340 high x 340 deep.

Refrigeration

pipes cross back

of enclosure

and come

round on LHS

to give

flexibility

Support

Figure 6a

Figure 6

2 return air

filter assy.

inset to

bottom of

cupboard.

Refrig lines, drain hose

electrical cable cover

with moulding

Section detail of air

handler - minimum

clearance required