Reznor RXH (Outdoor PreevA) Unit Installation Manual - Manual (Page 57)

Form I-RDH/REH/RHH/RXH (12-14), P/N 215210 R14, Page 57
heating elements while other elements are turned on and off or staged. Depending on
size, staging is controlled either by the FX06 controller or an additional staging module.
All of the D12 options include an outside air relative humidity transmitter. Depending
on whether the unit includes a mixing box, the sensor is either factory-mounted in
the mixing box or shipped separately for field installation in the inlet duct. The sensor
sequences compressor operation based on outdoor dewpoint. It is recommended for
humid and temperate climates.
Option CL67, P/N 260599, Space
Temperature Sensor, has adjustable
setpoint control and unoccupied
override. Follow the instructions
included with the sensor and the
wiring diagram to install.
Option CL47, Room Dehumidistat, is shipped
separately for field installation. The relative
humidity inputs control reheat operation. Follow
the instructions included with the control and
the wiring diagram to install. NOTE: Applicable
with reheat (Option AU7 or AU8) only.
“ESC or Move Back”
Push for Menus
“OK” or “Enter”
Push to Select/Accept
“Scroll Buttons”
Display Lights
Symbol and 01 - 08
Unit ON/OFF Alarm
Comp #1 ON Reheat ON
Comp #1 ON Not Used
Stg #1 Heat ON Not Used
Stg #1 Heat ON Not Used
Option RB2A, P/N 223125, Remote User Interface, provides access to all the same functions as the FX06
controller except Test Mode.
Sequence of Operation with
Default FX06 Settings
(in D12 Options)
START
Unit On/OFF
Switch
Mode Controlled by:
Internal Time Clock or
Occ/Unocc Switch
Blower: Intermittent
ON call for space H or C
OR Space Humidity
Control
Space Heating
Setpoints
SSP - HSO - SHP - NSB
= 59.2°F
Discharge Air Setpoint
RHP = 80°F
Blower: Continuous
Damper 100% Open or
Other Control
Heat or Cool Neutral Air
Discharge Air Setpoint
DHL, DCH = 70°F
Heating Neutral Air
Discharge Air
Setpoint
DHL = 70°F
Space Heating
SSP - HSO -
SHP = 68.2°F
Discharge Air
Setpoint
RHP = 80°F
Dehumidification
Allowed
Enable DP1 = 60°F
Space Humidistat Switch
Closed; High and Low
Ambient Lockout
Heating Or Cooling Mode
Cooling, OAT > 68°F (OC1)
Heating, OAT < 62°F (OH1)
Occupied
Mode:
Unoccupied
Mode:
Damper(s): Open or
Other Control
Discharge Air Setpoint
Space Heating
Space Cooling
Neutral Air
Heating
Space Cooling
SSP + SCP =
76.8°F
Discharge Air
Setpoint
RCP = 55°F
Cooling Neutral
Air
Discharge Air
Setpoint
DCH = 70°F
Discharge Air Setpoint
Space Cooling
Neutral Air
Space Cooling
SSP + SCP =
76.8°F
Discharge Air
Setpoint
RCP = 55°F
Dehumidification
Not Allowed
Cooling
Heating Or Cooling Mode
Cooling, OAT > 68°F (OC1)
Heating, OAT < 62°F (OH1)
Space Humidistat Switch Closed
Space Cooling
Setpoints
SSP + SCP + NSU =
85.8°F
Discharge Air Setpoint
RCP = 55°F
Dehumidification
Allowed
Enable DP1 = 60°F
And RHE = Enable
Space Humidistat
Switch Closed
Dehumidification
Not Allowed
FIGURE 51 - Optional Space Mounted Accessories with Digital D12 Control Options