HTW PURE LIGHT UV HTWS026PLUV, Installation Manual

Page: 34 / 88

Tube Strapping
•
Strapping with PVC Protective tape must be careful, do not damage the pipeline and
drain pipe.
• Strapping should start from the lower part of the outdoor unit to the indoor unit.
•
Fix the PVC tape with adhesive tape to prevent loosing.
•
Drainpipe should slightly slide down outwards to ensure drainage well.
•
When the indoor unit is lower than the outdoor unit, bend the tube to proper extent to
prevent water draining into house.
• Fix the tube bundle with tube clamps on the wall.
•
Allow enough space between discharge pipe and the ground. Do not put the discharge
pipe in water or ditch.
•
Seal the external wall holes with sealing gum or putty.
Fig.15
Exhaust
1. Exhausting type
•
Make sure that all the tubes of indoor and outdoor unit are connecting well.
•
Take off valve bonnet and service port valve bonnet from two-port valve (small pipe
cut-off valve) and three-port valve (large pipe cut-off valve).
•
Turn counter-clockwise 1/4 turn the spool of two-pot valve, close after 10 seconds.
• To check whether there are leakage at all connections.
•
If there is no leakage, turn again two-port valve counter-clockwise 1/4 turn, at the
same time hold out against the exhaust from valve inside of service port of three-port
valve for 10 seconds.
•
Open two-port and three-port valves for running.
• Screw tightly the valve bonnet.
•
Check with soap water or leak detector whether there are leakage at all indoor and
outdoors’ connections.
•
Put the valve bonnet and valve cover back to the position.
Wall
Fig.15
Clamp
PVC protective tape
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