Technical data

ManualsBrandsYork ManualsHeat Pump90

11 DE-COMMISSIONING,

DISMANTLING AND DISPOSAL

Never release refrigerant to the

atmosphere when emptying the

refrigerating circuits. Suitable retrieval

equipment must be used. If reclaimed

refrigerant cannot be re-used. It must

be returned to the manufacturer.

Never discard used compressor oil, as

it contains refrigerant in solution.

Return used oil to the oil manufacturer.

Unless otherwise indicated, the operations

described below can be performed by any properly

trained maintenance technician.

11.1 General

Isolate all sources of electrical supply to the unit

including any control system supplies switched by

the unit. Ensure that all points of isolation are

secured in the 'OFF' position. The supply cables

may then be disconnected and removed. For

connection points refer to Section 4.

Remove all refrigerant from each system of the unit

into a suitable container using a refrigerant reclaim

or recovery unit. This refrigerant may then be re-

used, if appropriate, or returned to the

manufacturer for disposal. Under NO

circumstances should refrigerant be vented to

atmosphere. Drain the refrigerant oil from each

system into a suitable container and dispose of

according to local laws and regulations governing

the disposal of oily wastes. Any spilt oil should be

mopped up and similarly disposed of.

Isolate the unit heat exchanger(s) from all external

water systems and drain the heat exchanger

section(s) of the system. If no isolation valves are

installed it may be necessary to drain the complete

system(s).

If glycol or similar solutions have been

used in the water system(s), or

chemical additives are contained, the

solution MUST be disposed of in a

suitable and safe manner. Under NO

circumstances should any system

containing glycol or similar solutions

be drained directly into domestic

waste or natural water systems.

After draining, the water pipework can be

disconnected and removed.

Packaged units can generally be removed in one

piece after disconnection as above. Any fixing

down bolts should be removed and then the unit

should be lifted from position using the points

provided and equipment of adequate lifting

capacity.

Reference should be made to Section 4 for unit

installation instructions, Section 9 for unit weights

and Section 3 for handling.

Units which cannot be removed in one piece after

disconnection as above, must be dismantled in

position. Special care should be taken regarding

the weight and the handling of each component.

Where possible units should be dismantled in the

reverse order of installation.

Residual refrigerant oil and glycol or