Bryant F Manuel d'utilisateur télécharger pdf (Page 40)

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.

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 interna l 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

dampe r 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.)

Loca te 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).

LCTB

ECON

Enthalpy

Switch

GRA

Factory Wiring Harness

C08218

Fig. 50 -- Enthalpy Switch (HH57AC077) Connections

The outdoor enthalpy changeove r setpoint is set at the

enthalpy controller.

580J

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 84 85

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Bryant F Manuel d'utilisateur Page 40

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