172
Units With Humidi-MiZer® Adaptive Dehumidification System
NOTE: All circuits must be running in normal cooling mode. In
-
door airflow must be within specified air quantity limits for cool
-
ing. All outdoor fans must be on and running at normal speed.
Use the following procedure to adjust charge on Circuit B of
Humidi-MiZer equipped units:
1. Start all compressors and outdoor fans. Allow unit to run
for 5 minutes.
2. Switch system to run in a Dehumidification mode for 5
minutes by switching
RHV
to ON through the Service Test
function
(Service Test
COOL
RHV
).
3. At the end of the 5-minute period, switch back into Cool
-
ing mode through the Service Test function
(Service
Test
COOL
RHV
) by switching
RHV
to OFF.
4. Using the cooling charging charts provided (Fig. 56-77),
add or remove refrigerant until conditions of the chart are
met. As conditions get close to the point on the chart, add
or remove charge in
1
/
4
-lb increments until complete. See
paragraph “To Use the Cooling Charging Chart” for addi
-
tional instructions.
5. If a charge adjustment was necessary in Step 4, then repeat
the steps in this paragraph (starting with Step 2) until no
charge adjustment is necessary. When no more charge
adjustment is necessary after switching from a Dehumidi
-
fication Mode to a Cooling Mode (Steps 2 and 3), then the
charge adjustment procedure is complete.
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 ...