Transportation &
Installation
13
installation. Before the unit starts operation, all dirt in the water collecting tray and the water drain pipe
should be removed.
Note:
If there is dirt on the motor or the fan blades remained, the York Company will not provide
any effective maintenance and repairing service.
2-7 Brief Introduction to the Installation
2-7-1 Hydraulic Pipeline
All water inlet and outlet pipes should be constructed according to the design drawing and the York
sample drawing. On the other hand, the hydraulic pipeline must be laid in accordance with the accurate
space dimensions, ensuring that the pipeline is connected correctly. Space should be remained outside
all water pipe paths, which should be big enough to hold the power supply and control lines (if
required), or to lay the insulating layer.
The collector of the hot or cold coil pipe has been equipped with the air exhaust and water drainage
plugs. The exhaust valve is set on the highest point of the water-outlet collector and the water-escape
valve is places in the lowest point of the water inlet collector.
The safety device should be installed in the inlet system of the hot water coil pipe to prevent the internal
temperature of the unit from exceeding 60
℃
in case of that the fan stops operation.
To tighten an external pipe, always hold the coil pipe by using a pipe wrench to avoid damages to the
manifold, as shown in the following figure:
2-7-2 Pipeline Support
The weight of every water pipe should be sustained by the support and should not be borne by the unit.
Meanwhile, enough free space should be reserved for the water inlet, outlet and drain pipe interfaces.
If the hot water and cold water shares the same duct, the water pipe diameter will be subject to change
due to contraction and expansion. If the pipe is fixed firmly without any free space considered in
advance, it very likely will suffer from bursting or damage.
Summary of Contents for YBAH Series
Page 24: ...Maintenance and Repairing 23...
