151
Fig. 37 — CCN System Architecture
SERVICE
Service Access
All unit components can be reached through clearly labeled
hinged access doors. These doors are not equipped with tie-
backs, so if heavy duty servicing is needed, either remove them
or prop them open to prevent accidental closure.
Each door is held closed with 3 latches. The latches are secured
to the unit with a single
1
/
4
-in. –20 x
1
/
2
-in. long bolt. See
Fig. 38.
To open, loosen the latch bolt using a
7
/
16
-in. wrench. Pivot the
latch so it is not in contact with the door. Open the door. To
shut, reverse the above procedure.
NOTE: Disassembly of the top cover may be required under spe-
cial service circumstances. It is very important that the orientation
and position of the top cover be marked on the unit prior to disas-
sembly. This will allow proper replacement of the top cover onto
the unit and prevent rainwater from leaking into the unit.
Fig. 38 — Door Latch
NETWORK
OPTION
S
REMOTE
CCN
S
ITE
AUTODIAL
GATEWAY
NON CARRIER
HVAC
EQUIPMENT
TERMINAL
S
Y
S
TEM
MANAGER
TCU
ROOFTOP
UNIT
DAV AIR
TERMINAL
TCU
TCU
DAV AIR
TERMINAL
AIR DI
S
TRIBUTION-DIGITAL AIR VOLUME CONTROL (DAV)
DAV FAN
POWERED
MIXING
BOX
TO
ADDITIONAL
TERMINAL
S
HEATING/COOLING UNIT
S
BUILDING
S
UPERVI
S
OR
ROOFTOP
UNIT
CL
ROOFTOP
UNIT
CL
ROOFTOP
UNIT
CL
ROOFTOP
UNIT
CL
CCN BU
S
CL
COMFORT
CONTROLLER
LEGEND
CCN
—
Carrier Comfort Network
®
CL
—
Comfort
Link™ Controls
DAV
—
Digital Air Volume
HVAC —
Heating, Ventilation, and Air Conditioning
TCU
—
Terminal Control Unit
IMPORTANT: After servicing is completed, make sure
door is closed and relatched properly, and that the latches
are tight. Failure to do this can result in water leakage into
the indoor-air section of the unit.
Summary of Contents for Weathermaster 48P2030-100
Page 130: ...130 Fig 19 Typical Power Schematic Sizes 040 075 Shown ...
Page 131: ...131 Fig 20 Main Base Board Input Output Connections ...
Page 132: ...132 Fig 21 RXB EXB CEM SCB Input Output Connections ...
Page 133: ...133 Fig 22 Typical Gas Heat Unit Control Wiring 48P030 100 Units Shown ...
Page 134: ...134 Fig 23 Typical Electric Heat Wiring 50P030 100 Units Shown ...
Page 135: ...135 Fig 24 Typical Power Wiring 115 V ...
Page 136: ...136 Fig 25 Typical Gas Heat Section Size 030 050 Units Shown ...
Page 138: ...138 Fig 27 Component Arrangement Size 030 035 Units ...
Page 139: ...139 Fig 28 Component Arrangement Size 040 075 Units ...
Page 140: ...140 Fig 29 Component Arrangement Size 090 100 Units ...
