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When handling or recovering refrigerant it is not permissible to release refrigerant into the atmosphere.
Many leak-test methods recommended in the past are no longer possible. Current standard practices
must be used.
Pressurize the system’s circuit to 150 PSIG (1034 kPa) by using dry nitrogen with a trace of refrigerant.
Check the entire system for leaks with a suitable leak nder (per local code) including but not limited
to all braze joints, caps, ttings, and are nuts on both eld and factory furnished components. After
completion of leak testing, release test pressure and pull a vacuum on the system.
Note: Tightening of ttings and valves is the responsibility of the installing contractor.
WARNING: With any uid connection there is risk of leakage. Water leakage could
result in property damage to mission critical equipment. A water drain connection is
required. Units with optional steam generator humidiers will require an external potable
water supply. Water leakage can result from improper installation and/or practices.
3 ELECTRICAL CONNECTIONS
WARNING: The Data Aire cooling unit must be connected by a licensed and qualied
electrician. Risk of electrical shock could result in injury or death. Disconnect all remote
electrical power supplies prior to working on the unit.
NOTE: Disconnect switches are optional. The disconnect switch when turned OFF
will de-energize the high voltage.
WARNING: Before proceeding with the electrical connections, make certain that the
volts, hertz and phase correspond to that specied on the unit electrical nameplate. Use
copper conductors only.
3.1 Electrical Service
Check to be sure the electrical service provided by the utility is sucient to handle the additional load
imposed by this equipment. Most units with remote heat exchangers will require a separate power
source and eld provided interconnecting wires (see Section 3.5).
Remote condensers will typically require one power source. Glycol systems with uid coolers and loose
pump(s) typically require one power source for the uid cooler and will require one additional source for
single pump or two additional sources for dual pumps. Systems where the pump(s) are mounted and
piped integral to the uid cooler will usually require a single power source.