Справочник Пользователя для Carrier 17/19EX
To Read Refrigerant Pressures
during pumpout or leak testing:
1. The LID display on the machine control center is suitable for determining refrigerant-side
pressures and low (soft) vacuum. For evacuation or dehydration measurement, use a
quality vacuum indicator or manometer to ensure the desired range and accuracy. This can
be placed on the Schrader connections on each vessel (
and
) by removing
the pressure transducer.
2. To determine utility vessel pressure, a 30 in.-0-400 psi (-101-0-2760 kPa) gage is attached
to the vessel.
for valve locations and numbers.
CAUTION
CAUTION
!
Transfer, addition, or removal of refrigerant in spring-isolated machines may
place severe stress on external piping if springs have not been blocked in both
up and down directions.
place severe stress on external piping if springs have not been blocked in both
up and down directions.