Daikin McQuay AWS210BDS, Руководство по установке, Страница: 5 / 216

IM 1167 5
Installation and Startup
The right-hand panel contains a circuit breaker. A minimum of
four feet of clearance is required in front of the panels. The
side clearance required for airflow provides sufficient service
clearance.
On all Pathfinder units, the condenser fans and motors can be
removed from the top of the unit. The complete fan/motor
assembly can be removed for service. The fan blade must be
removed for access to wiring terminals at the top of the motor.
DANGER
Disconnect, lockout and tag all power to the unit before
servicing condenser fan motors or compressors. Failure to do
so can cause bodily injury or death.
Do not block access to the sides or ends of the unit with piping
or conduit. These areas must be open for service access. Do
not block access to the control panels with field-mounted
disconnect switches.
Figure 3: Control and Power Panel Component Location
Fan Contactors, 1 per Fan
Circuit #1
Cir# 1, Fan Circuit Breaker
Fan Contactors
1 per Fan, Circuit #2
Phase/Voltage
Monitor
120/24V
Transformer
Line/120V
Transformer
NOTES
:
1. The Emergency Switch Relay de-energizes circuit #1 and #2 control power when activated,
causing an immediate compressor and fan shut down. When ordered, the optional red emergency
button switch is located on the bottom front of the control panel door.
2. The control power transformer is located in the power panel adjacent to the control panel.
3. Additional extension (aka extension) modules are located elsewhere on the chiller.
Alarm & Limit
Extension
Module
MicroTech III
Main
Controller
Optional
115V
Outlet
Cir #1 & #2
Fan Control
Extension
Module
Controller
Fuse
Emergency
Switch
Relay
Control
Circuit
Breaker
Unit On/Off
Switch
Circuit #1
Pumpdown
Switch
Circuit #2
Pumpdown
Switch
g , , g
Single Point Disconnect Switch
Compressor #1
Circuit Breaker
Compressor #2
Circuit Breaker
Clearance Requirements
Notes:
1
Minimum side clearance between two units is 12 feet
(3.7 meters).
2
Unit must not be installed in a pit or enclosure that is
deeper or taller than the height of the unit unless extra
clearance is provided per note 4.
3
Minimum clearance on each side is 8 feet (2.4 meters)
when installed in a pit no deeper than the unit height.
4
Minimum side clearance to a side wall or building taller
than the unit height is 6 feet (1.8 meters), provided no
solid wall above 6 feet (1.8 meters) is closer than 12 feet
(3.7 meters) to the opposite side of the unit.
5
Do not mount electrical conduits where they can block
service access to compressor controls, refrigerant driers
or valves.
6
There must be no obstruction of the fan discharge.
7
Field installed switches must not interfere with service
access or airflow.
Figure 4: Clearance Requirements
5ft (1.5m)if open fence or 50% open wall
if solid wall (see note 3 for pit)
5ft (1.5m)if open fence or 50% open wall
if solid wall (see note 3 for pit)
No obstructions.
Recommended area
required for unit
operation, air flow
and maintenance
access.
3ft (1m) for service
See Note 5
Wall or
Fence
Air Flow
No obstructions allowed
above unit at any height
See notes 2 & 4
concerning wall
height at unit sides.
6ft (1.8m)
6ft (1.8m)
4ft (1.2m)
For electric
panel access