19
Energy-Recovery Ventilation
System Service Manual
Inner steer bar
φ
16hanger
A-A
A
Return air vent
Diffuser
Ceiling
Outdoor
Indoor
Room air inlet
Room air outlet
Fresh air inlet
Air duct muffler
Air duct
muffler
A
Pitch >1/30
Vent for inspection and repair
4 CAUTIONS FOR INSTALLATION
(1)
Never lay wires, cables and pipes with toxic, inflammable or explosive gas or liquid in the duct.
(2)
The dismountable ports and adjustable parts of duct and fittings can not be installed in the wall or floorslab.
(3)
The sundries and filth in or on the duct and fittings should be cleaned before installation.
(4)
The construction of bracket or hanger of the duct should accord with the following specifications:
1)
The build-in fitting, setting nail or expansion bolt for bracket or hanger should be placed correctly and firmly. The inlet
part should be free of oil soil and painting.
2)The layout of the bracket or hanger should accord with design specifications. If there is no design specification,
following specifications will apply.
•
Pole bracket or inclined bracket is applicable for horizontal duct against wall or pole and support bracket for that
far from wall or pole. Strip hanger is applicable for the duct with diameter or length of side below 400mm.
•
Arm bracket or inclined bracket is applicable for vetical duct against wall or pole and anchor ear bracket for that far
from wall or pole .The vertical pipe outside the room or on the roof should be fixed with derrick or dragline.
3)The hanger’s rod should be flat and its screw thread should be full and smooth. Either threaded connection or
welding is suitable for joint of hangers. If the former one is adopted, connecting thread of either end should be longer
than diameter of hanger; moreover, anti-loosing measure should be made. If the later one is adopted, lapping joint is
applicable and its length should be 6 times longer than diameter of hanger at least at two sides.
4)The holes on the bracket and hanger should be drilled mechanically and not with gas cutting.
(5)
The bracket and hanger can not set at air vent, valve or service door. The hanger can not be directly fixed at flange.
The distance between horizontal duct bracket and hanger can not exceed 4m.If the duct is installed vertically, the distance
between them should not exceed 4m and the built-in fittings of each vertical duct should be more than 2 pieces.
(6)
The duct flange, hanger and hanger for equipment should be coated with anticorrosion paint.
(7)
The floor plate and wall which the duct passes should be repaired after construction. The holes on the external wall
should be kept 2/100 gradient at level direction (the internal is higher) to avoid rainwater into the room.
(8)
Installation of duct and connection between air vent and duct should be firm. The frame and decorative surface should
be solid, external surface should be level and indeformable and adjustment should be flexible.
Summary of Contents for EH01100030
Page 1: ...Energy Recovery Ventilation System Service Manual GC201202 I ...
Page 3: ...1 Energy Recovery Ventilation System Service Manual PRODUCT PRODUCT ...
Page 8: ...6 Energy Recovery Ventilation System Service Manual CONTROL CONTROL ...
Page 9: ...7 Energy Recovery Ventilation System Service Manual CONTROL CONTROL 1 OPERATION FLOWCHART ...
Page 18: ...16 Energy Recovery Ventilation System Service Manual INSTALLATION ...
Page 24: ...22 Energy Recovery Ventilation System Service Manual MAINTENANCE ...
Page 26: ...24 Energy Recovery Ventilation System Service Manual 2 FLOW CHART OF TROUBLE SHOOTING ...
Page 28: ...26 Energy Recovery Ventilation System Service Manual 3 Model FHBQ D15 D FHBQ D20 D ...
Page 34: ...32 Energy Recovery Ventilation System Service Manual 2 Exploded view for model FHBQ D30 M D ...
Page 36: ...JF00300198 global cn gree com ...