Rapid 2005 - SECTION 18: SEQUENCE OF OPERATION; 18.2 HVAC Remote Panels and Panel Options

B-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
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17.8.4 Motorized Inlet Damper
The motorized inlet damper covers the outside air
inlet of the air handler. When the air handler blower is
turned on, the damper motor is energized and opens
the damper. The damper motor has an auxiliary
switch that prevents the blower from starting until that
damper has opened sufficiently to allow the required
air volume to pass through the air handler.
17.8.5 Motorized Discharge Damper
The motorized discharge damper is mounted in the
duct downstream from the discharge opening of the
air handler. When the air handler fan is turned on the
damper motor is energized and opens the damper.
The damper motor has an auxiliary switch that
prevents the blower from starting until that damper
has opened sufficiently to allow the required air
volume to pass through the air handler.
17.8.6 Control Enclosure Heater
The control enclosure heater is an electric heater that
keeps the temperature in the control enclosure within
the range for the control components. This option is
intended for extremely cold climates, but
recommended for installations belo
w 15° F (-9° C).
The air handler controls are rated to perform at
temperatures as low as -30° F (-34° C). In
environments where the air handler may be exposed
to lower temperatures, a control enclosure heater
may be required.
3B
DM1
3C
2
Upper Damper (For All Models)
Lower Damper (For VAV and AM B-2000 and B-3000)
3A
RD2
2
1
62
RD2
-FR uses upper only
-MUA uses upper with a mechanically connected lower
Part Number Description Models
77019.301 Inlet Damper 2005
80900 Inlet Damper 2010 and 2010B
80920 MUA Inlet Damper 2020
80920U
FR/AM/VAV
Inlet Damper
2020
77530 MUA Inlet Damper 2030
77830U
FR/AM/VAV
Inlet Damper
2030
DM2
2
(Mounted On Discharge Side)
3B
3C
Part Number Description Models
77014.301 Discharge Damper 2005
77018.301 Discharge Damper 2010 and 2010B
80922.2 Discharge Damper 2020
77837.2 Discharge Damper 2030
H1
H3
H2
H4
BREAKER
1A
L1
X1
X2
TRANSFORMER
250 VA
L3
L2
H2 - 230
H4 - COMMON
H3 - 208
2A
H1 - 460
PRIMARY CONNECTION
TRANSFORMER
120 VAC
3 PHASE ONLY
ELECTRIC HEATER
120 V, 60H Z, 200 W
L1 N
THERMOSTAT SET TO 0° F
BREAKER
3 AMP
Part Number Description Models
08110
Control Enclosure
Heater
All Models