
10
JOHNSON CONTROLS
must only be carried out by suitably trained and qualified
personnel. No attempt should be made to gain access to
the control panel or electrical enclosures during normal
operation of the unit.
Rotating Parts
Fan guards must be fitted at all times and not removed
unless the power supply has been isolated. If ductwork is
to be fitted, requiring the wire fan guards to be removed,
alternative safety measures must be taken to protect
against the risk of injury from rotating fans.
Sharp Edges
The finning on the air cooled condenser coils has sharp
metal edges. Reasonable care should be taken when
working in contact with the coils to avoid the risk of
minor abrasions and lacerations. The use of gloves is
recommended.
Refrigerants and Oils
Refrigerants and oils used in the unit are generally
non-toxic, non-flammable and non-corrosive, and pose
no special safety hazards. Use of gloves and safety
glasses are, however, recommended when working on
the unit. The build up of refrigerant vapor, from a leak
for example, does pose a risk of asphyxiation in confined
or enclosed spaces and attention should be given to good
ventilation. For more comprehensive information on
safety precautions for use of refrigerants and oils, refer
to the Materials Safety Data tables provided on pages
10 through 13.
High Temperature and Pressure Cleaning
High temperature and pressure cleaning methods (e.g.
steam cleaning) should not be used on any part of the
pressure system as this may cause operation of the pres-
sure relief device(s). Detergents and solvents which may
cause corrosion should also be avoided.
EMERGENCY SHUTDOWN
In case of emergency the electrical option panel is fitted
with an emergency stop switch CB3 (Circuit Breaker
3). Separate Circuit Breakers, CB1 (System 1) and
CB2 (System 2), can also be used to stop the respective
system in an emergency. When operated, it removes the
electrical supply from the control system, thus shutting
down the unit.
1
Содержание YCAS 0138EB
Страница 36: ...36 JOHNSON CONTROLS POWER AND CONTROL PANEL LAYOUTS WYE DELTA TYPICAL FIG 8 POWER PANEL SECTION 00263VIP 4...
Страница 50: ...50 JOHNSON CONTROLS This page intentionally left blank...
Страница 61: ...61 JOHNSON CONTROLS FORM 201 18 NM7 This page intentionally left blank 7...
Страница 64: ...64 JOHNSON CONTROLS Technical Data ELEMENTARY DIAGRAM FIG 18 ELEMENTARY DIAGRAM ACROSS THE LINE START...
Страница 68: ...68 JOHNSON CONTROLS Technical Data ELEMENTARY DIAGRAM FIG 21 ELEMENTARY DIAGRAM WYE DELTA START...
Страница 70: ...70 JOHNSON CONTROLS Technical Data FIG 22A CONTROL PANEL COMPONENT LOCATIONS...
Страница 71: ...71 JOHNSON CONTROLS FORM 201 18 NM7 LD03280 FIG 22B POWER PANEL COMPONENT LOCATION 7...
Страница 72: ...72 JOHNSON CONTROLS Technical Data LEGEND LD03281...
Страница 73: ...73 JOHNSON CONTROLS FORM 201 18 NM7 LD03282 LD03283 LD03284 7...
Страница 74: ...74 JOHNSON CONTROLS Technical Data CONNECTION DIAGRAM SYSTEM WIRING LD06256 LD03231 LD03232...
Страница 75: ...75 JOHNSON CONTROLS FORM 201 18 NM7 COMPRESSOR TERMINAL BOX LD03233 7...
Страница 76: ...76 JOHNSON CONTROLS LD03285 Technical Data...
Страница 77: ...77 JOHNSON CONTROLS FORM 201 18 NM7 3 4 5 6 3 4 5 6 7 8 5 6 3 4 7 8 9 10 LD06840A 7...
Страница 113: ...113 JOHNSON CONTROLS FORM 201 18 NM7 COMPRESSOR COMPONENTS CONT D FIG 40 COMPRESSOR COMPONENTS LD03669 7...
Страница 114: ...114 JOHNSON CONTROLS COMPRESSOR COMPONENTS CONT D FIG 41 COMPRESSOR COMPONENTS LD03670 Technical Data...
Страница 181: ...181 JOHNSON CONTROLS FORM 201 18 NM7 NOTES...
Страница 182: ...182 JOHNSON CONTROLS This page intentionally left blank...
Страница 183: ...183 JOHNSON CONTROLS FORM 201 18 NM7 This page intentionally left blank...