40
Unit Installation
(8) When the water tank is or higher than 1500mm, it should have ladders both inside and outside of
the water tank. When the water tank is or higher than 1800mm, it should have two glass gauges to
indicate the water level.
(9) The circulating pipe should be connected to the main return pipe. Horizontal distance between the
connection point to the constant-pressure point should be no less than 1500~3000mm.
3.4.4 Installation of condensate pipes
Setup
→
insulating
→
fastening
NOTE
• Adverse slope is not allowed for the slope larger than 1%.
• It can’t connect with the rain water pipe, sewage pipe or other pipes.
• The elbow ventilator should be installed at the highest point of the condensate pipe to prevent foreign
matters coming into the drain pipe.
• The S-shaped trap and exible joint are necessary.
• The diameter of the pipes should be suitable.
• The wall-thru or oor-thru pipes should be protected by the steel sleeve. Do not put seams inside
the sleeve. The steel sleeve should keep ush with oor, or 20mm above the oor for the oor-thru
pipes. The steel sleeve is not allowed to affect the slope of the pipe and can’t be used as the support
of the pipe. Clearance between the pipe and the sleeve should be stuffed by exible non-inammable
material.
(1) Setup
The condensate pipes should be at least 300mm away from the electric box of the unit. For special
space, its installation location should be approved by the corresponding designers.
Connection of the main pipe and the branches