Carrier 50PG03-07 Especificações descarregar pdf (Página 25)

CONTROL CONTROL POINT

CURVE APPROX. °F (°C)

AT 50% RH

A 73 (23)

B 70 (21)

C 67 (19)

D 63 (17)

85 90 95 100 105 110

(35) (38) (43)

/ "Ix/ I "WI I\1

_'/3-. Jf \1 A\

";Z

\ 1_/"4_ I \V

HIGH LIMIT

CURVE

35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110

(2) (4) (7) (10) (13) (16) (18) (21) (24) (27) (29) (32) (35) (38) (41) (43)

o o

APPROXIMATE DRY BULB TEMPERATURE i F (C)

Fig. 18- Enthalpy Changeover Set Points

6000

5000

_o 4000

3000

OO 2000

z 1000

CO2 SENSOR MAX RANGE SETTING

+800 ppm

_9OO ppm

_lOOO ppm

+1100 ppm

2 3 4 5 6 7 8

DAMPER VOLTAGE FOR MAX VENTILATION RATE

Fig. 19 -- 002 Sensor Maximum Range Setting

4. Connect 24 vac across tem]inals TR and TRI.

5. Cmefully adjust the minimum position potentiometer

until file measured mixed air temperature matches the cal-

culated value.

6. Reconnect file mixed-air sensor to terminals T and TI.

Remote control of the EconoMi$er IV damper is desirable

when requiring additional temporary ventilation. If a field-

supplied lemote potentiometer (Honeywell p_ut number

$963B1128) is wired to the EconoMi$er IV controller, the

minimum position of the damper can be controlled from a

remote location.

To control the minimum damper position remotely, remove

the factory-installed jumper on the P and PI terminals on the

EconoMi$er IV controller Wire the field-supplied potentiome-

ter to the P and PI terminals on the EconoMiSer IV controllel:

See Fig. 16.

Damper Movement -- When the EconoMiSer IV board re-

ceives initial power, it can take the damper up to 21/2 minutes

before it begins to position itself. After the initial positioning,

subsequent changes to damper position will take up to 30 sec-

onds to initiate. Damper movement from lull open to full

closed (or vice versa) takes 21/2 minutes.

Thermostats -- The EconoMiSer IV control works with con-

ventional thermostats that have a YI (cool stage 1), Y2 (cool

stage 2), WI (heat stage 1), W2 (heat stage 2), and G (fan). The

EconoMiSer IV control does not support space temperature

sensors. Connections me made at the thermostat terminal con-

nection board located in the main control box.

Pressure Drop -- See Fig. 20 and 21 for EconoMi$er [V pres-

sure drop. Evaporator fan may need to be adjusted.

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 48 49

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