Caution For Piping Work - Danfoss Optyma OP-UPAC015COP04E Application Manuallines

Application Guidelines
Provision at snowy region
Provide following measures at snowy region not to bury the suction inlet, blow outlet, or the bottom of base plate, under snow.
1. Install the outdoor unit on a stand that is higher than expected surface of snow.
2. Install the unit under the eaves, or a snow roof (provided at site).
When the condensing unit is hoisted with ropes for delivery, take care to maintain the centre of gravity. It could drop off if the
stability is lost.
Delivery
Determine the delivery route, and deliver the unit to the installation place without removing the packing.
When hoisting the unit, use a pair of ropes and cushions to protect sections chafed by the ropes.
NOTE:
Make sure to pass the ropes through square holes on the fixing legs of condensing unit.
Protect surfaces of the condensing unit where the ropes are applied with wear plates or cushions.
Z
Y
X
Square holes
(2 places each at front and rear)
Fig. 12

4.4 Caution for piping work

1. General caution
How well designed and practiced the refrigerant piping work plays a critical influence over the capacity, life, or failures, on the refrigerating
unit. Design and practice the piping work as instructed below.
Design and practice the piping work as instructed below.
• Sufficiently wash the inside of low pressure device, pipes, etc., to remove
dirt or moisture, and dry them before use. Use always a pipe cutter
to cut refrigerant pipes, and blow off dirt with nitrogen, or air, before
connection. (Avoid to use a saw, or grinder, because it could produce a
lot of chips.)
• Use the nitrogen gas blow when brazing pipes to prevent oxide scale.
• Where the condensing units is positioned lower than the low pressure
device, limit the level difference between them no larger than 5 m or, if
it is positioned higher, no larger than 22 m. Length of piping between
them needs to be no longer than 100 m. (When the level difference,
or piping length, exceeds these standards, special measures may be
required, such as the enlargement of pipe diameter.)
24
AB408540130380en-000102
4. Installation
40°or less
Standard for center of gravity
Z
Y
X
Center of gravity position
Type
Weight (kg)
X (mm)
Y (mm)
Z (mm)
Brazing
Brazing
Nitrogen gas cylinder
Nitrogen gas cylinder
Fig. 13
© Danfoss | Climate Solutions | 2023.02
OP-UPAC015COP04E
340
608
342
620
Pipe
Packing
Packing
Pipe