Bryant F - Manual (Page 40)

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SEN
SEN
J20-1
J20-2
C08460
Fig. 46 -- RTU--MP T--55 Sensor Connections
Connect T--56
See Fig. 47 for T--56 internal connections. Install a jumper
between SEN and SET terminals as illustrated. Connect
T--56 terminals to RTU--MP J20--1, J20--2 and J20--3 per
Fig. 48.
2 3 4 5 6 1
SW1
SEN SET
Cool Warm
BRN (GND)
BLU (SPT)
RED(+)
WHT(GND)
BLK(-)
CCN COM
SENSOR WIRING
JUMPER
TERMINALS
AS SHOWN
BLK
(T56)
C08202
Fig. 47 -- T--56 Internal Connections
SEN J20-1
J20-2 SEN
SET
Jumper
J20-3 SET
C08461
Fig. 48 -- RTU--MP T--56 Sensor Connections
Connect T--59
The T--59 space sensor requires a separate, isolated power
supply of 24 VAC. See Fig. 49 for internal connections at
the T--59. Connect the SEN terminal (BLU) to RTU--MP
J20--1. Connect the COM terminal (BRN) to J20--2.
Connect the SET terminal (STO or BLK) to J20--3.
OR SET SEN
OPB COM- PWR+
BLU (SPT)
BLK (STO)
24 VAC
SENSOR
WIRING
POWER
WIRING
BRN (COM)
NOTE: Must use a separate isolated transformer.
C07132
Fig. 49 -- Space Temperature Sensor Typical Wiring
(33ZCT59SPT)
Economizer Controls
Outdoor Air Enthalpy Control (PNO HH57AC077)
The enthalpy control (HH57AC077) is available as a
field--installed accessory to be used with the EconoMi$er2
damper system. The outdoor air enthalpy sensor is part of
the enthalpy control. (The separate field--installed
accessory return air enthalpy sensor (HH57AC078) is
required for differential enthalpy control.)
Locate the enthalpy control in the economizer hood.
Locate two GRA leads in the factory harness and connect
these leads to enthalpy control sensors 2 and 3. (See Fig.
50.) Connect the enthalpy control power input terminals to
economizer actuator power leads RED (connect to TR)
and BLK (connect to TR1).
6
7
LCTB
ECON
3
2
Enthalpy
Switch
GRA
GRA
Factory Wiring Harness
C08218
Fig. 50 -- Enthalpy Switch (HH57AC077) Connections
The outdoor enthalpy changeover setpoint is set at the
enthalpy controller.
580J