10
Install of ducted type indoor unit
Attention:
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There should be thermal insulation layers around the air delivery and air return ducts as well as on the
new air ducts to protect against heat losses and condensation. Adhere the plastic nails onto the ducts,
and then attach a layer of insulation cloth with the tinfoil onto the ducts. Fix the plastic nail and then
seal tightly the joints by way of tinfoil tapes. Some other materials with good thermal insulation
properties can also be used.
●
The air delivery and air return ducts should be fixed to the prefabricated ceiling boards with iron
stands. The joints of the air ducts should be sealed tightly to prevent from air leakage.
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The designing and operation of the air ducts should comply with the related state standards and
procedures for engineering.
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It is recommended to leave at least a space of 150mm between the edge of the air return duct and the
wall, and a filter screen should be placed at the air return opening.
●
Muffling and vibration reduction should be taken into consideration during the designing and
operation of the air ducts. In addition, the noise source should be kept away from the crowds. It is
absolutely not allowed to design the placement of the air return opening right above the head of the
users (in the offices, lounges or other public sites).
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Installation of Condensed Water Pipes
The condensed water pipes should be kept at 5—10 degrees of gradient to facilitate discharge of the
condensed water. Thermal insulation materials should be placed at the joints of the condensed water pipes
so as to prevent from dew condensation. (As shown in Fig.7)
Thermal insulation layer
water pipe
Cover of the pipe
Fig.7: Thermal insulation of the condensed water pipe
Attention: It must be made sure that there is no leakage at the joints of the condensed water
pipes.
Содержание OV-R224P/Na-M
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