York YUHC 07-18 User Manual

•  Outdoor heat pump unit : install the unit at least 10 cm above ground level to facilitate drainage of defrost water and 

prevent accumulation of ice. In effect, defrost water can cause accumulation of ice under the unit during subfreezing 

outdoor temperatures. 

•  In areas with heavy snowfallit is best to install the unit on wall supports.

•  In some regions, it is necessary to heat the bottom of the condensate drainage pan and the condensate drainage piping 

to avoid ice formation, and resulting ice build-up in the fan compartment (heater strip must be at least 25 W/m). 

•  Since the gravity center of this unit is not at its physical center, so please be careful when lifting it with a sling.

•  Never hold the air-in of the outdoor unit to prevent it from deforming.

  Do not touch the fan with hands or other objects.

•  Do not lean it more than 45°, and do not lay it sidelong.

•  Please fasten the feet of this unit with bolts firmly to prevent it from collapsing in case of earthquake or strong 

wind.

•  Make concrete foundation of the size of 590 x 328. (Refer to chart 3)

Condensate drainage is provided on the unit. The con-

nection is located at the rear. 

To  ensure  correct  condensate  drainage,  the  drain  line 

must be installed with a gradient of at least 2% (2 cm per 

meter) and without any upward slopes. An elbow trap at 

least 50 mm in height must also be provided. 

If possible, install a U bend fitted with an inspection cap.

Where the condensate lines from several units are joined 

together,  each  individual  outlet  must  be  fitted  with  an 

elbow  trap.  After  routing  and  connecting  condensate 

lines, pour water into the collecting pan and check that it 

drains correctly. An auxiliary condensate pump could be 

installed in cases where drain lines cannot be routed the 

correct gradient.

Condensate drain connection

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2/1/07   9:41:17 AM