Operation; Service Notes - Calorex monitair DH44 Series Owners & Installation Manual

5.1 OPERATION

A normal humidistat setting of 50-60% RH, marked on th e dial provided.
Minimum air temperature DH44/66A is 15ºC
Minimum air temperature DH44/66AX is 0ºC
Note on "X" models fan stops during defrost.
On models with LPHW, fans will start automatically as required.

5.2 SERVICE NOTES

Maintenance
a. Ensure air inlet/outlets are kept clean. Air fi lters are available.
b. Wipe clean with a damp cloth or cleaning fl uid suitable for polyeureth ane.
Cleaning
The evaporator and th e condenser will need to be cleaned occasionally with a soft brush.
It is also necessary to check if th e driptray and th e condensate drain contain any dirt which
may impair satisfactory operation. Calorex recommends th at th e maintenance should be done
annually by a specialised dealer.
Note The reply paid warranty registration card must be returned to ensure th e correct
warranty is given. If you do not fi nd a registration card with your machine please contact th e
CALOREX service department giving your name, address, and th e serial number of your machine.
A card will th en be sent to you for your completion.
Health and Safety
As th e Heat Pump contains electrical and rotational equipment, it is important th at ONLY
competent persons carry out any work on th is type of machine (see warranty).
Before opening th e unit you must ensure th at th e mains supply is isolated
Machine not running at all
Check th e following:
Is th e supply switched on?
Is th e supply fuse health y?
Turn th e humidistat dial fully anti-clockwise.
Check th e air inlet and oulet for obstructions.
If, aft er carrying out th e above and waiting 1 hour th e machine does not start phone for
service.
Machine Fan only running
Turn humidistat dial fully clockwise
Check air inlet and oulet for obstructions, if aft er waiting 30 minutes th e machine does not
start phone for service.
Water leaking from base of unit
Check connection from machine to drain for blockages and clear accordingly, check fall is
adequate.
Check th at machine is both vertically and horizontally level.
The user checklist should be carried out before initiating a service call.
Do not attempt to interfere with any internal control setting as th ese have been factory
calibrated and sealed.
Any sign of abnormal operation such as water dripping should be reported immediately to
an installer or Calorex.
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