Daikin EWAP460MBYN Сервис мануал онлайн [439/452] 524349

Daikin EWAP460MBYN Сервис мануал онлайн [439/452] 524349
ESIE05-07 Maintenance
Part 5 – Maintenance 5–5
3
5
1
5
Expansion valve The expansion valve will allow the correct amount of refrigerant to enter the evaporator to match the
cooling load (by keeping a constant superheat). Follow the instructions below to check the expansion
valve.
P Check the superheat setting.
P Inspect the bulb / power-head capillary connection (no chaffing).
P Inspect the equaliser line visually.
P Inspect the feeler bulb suction pipe connection / insulation.
Flow switch and
pump interlock
Follow the instructions below to check the flow switch and the pump interlock.
P Check operation by ohmmeter after disconnecting the wires to the field terminals and simulating
flow and no-flow conditions.
P Inspect the flow-switch for possible corrosion (glycol applications). Check electrical connections for
shunts or bridges.
ESIE05-07.book Page 5 Wednesday, October 11, 2006 10:42 AM

Содержание

Скачать