164
SERVICE
Service Access
All unit components can be reached through clearly labeled
hinged access doors. These doors are equipped with tiebacks.
Each door is held closed with 3 latches and 3 screws at the bot
-
tom of the door.
To open the door, remove 3 screws at the bottom edge of the
door. Rotate each latch
1
/
4
turn clockwise to open. See Fig. 39.
Each door has a retaining chain mounted on the inside of the
door. To use, unclip the chain on the inside, open the door fully
and attach the end of the chain to the adjacent clip. See Fig. 40.
To close the door, reverse the procedure.
The unit is also equipped with removable panels to gain access
to areas that do not normally require service. To remove panel,
remove 3 screws at the bottom of panel, lift panel vertically us
-
ing handle provided. Next pull bottom of panel out then lower
down until the top of the panel clears the top rail. See Fig. 41.
Fig. 39 —
Open Access Door
Fig. 40 —
Retaining Chain Connection
Fig. 41 —
Additional Access Panel Removal
CAUTION
Panels are heavy; 2 people should remove them. To rein
-
stall, reverse the procedure.
DOOR
LATCH
SCREWS
SEE DETAIL A
DETAIL A
ECONOMIZER END
ECONOMIZER END
CONDENSER END
CONDENSER END
PANEL
HANDLE
DOOR
LATCH
Содержание WeatherExpert 48N2
Страница 135: ...135 Fig 18 48 50N Typical Power Schematic Nominal 075 Ton Unit Shown ...
Страница 136: ...136 Fig 19 48 50N Typical Power Schematic Nominal Ton 90 150 Units Shown ...
Страница 137: ...137 Fig 20 48 50N Main Base Board Input Output Connections ...
Страница 138: ...138 Fig 21 48 50N RXB EXB CEM Input Output Connections a48 9307 ...
Страница 139: ...139 Fig 22 48 50N EXV SCB Input Output Connections a48 9308 ...
Страница 140: ...140 Fig 23 48N Typical Modulating Gas Heat Unit Control Wiring ...
Страница 141: ...141 Fig 24 50N Typical Electric Heat Unit Control Wiring ...
Страница 144: ...144 Fig 27 48N Typical Gas Heat Section Wiring Nominal Ton 120 to 150 Units ...
Страница 145: ...145 Fig 28 48 50N Typical Power Component Control Wiring 460 v ...
Страница 146: ...146 Fig 29 48 50N Component Control Wiring 575 v Nominal Ton 075 to 150 Units ...
Страница 147: ...147 Fig 30 48 50N Component Arrangement Power Box ...
Страница 148: ...148 Fig 31 48 50N Component Arrangement Control Box ...
Страница 168: ...168 Fig 47 Sensor and Ignition Position Fig 48 Combustion Blower Details SENSOR DETAILS IGNITION DETAILS ...
Страница 240: ...240 APPENDIX D VFD INFORMATION CONT Fig G VFD Bypass Wiring Diagram WHEN USED ...