Jade Range W7220 User Manual

Page 14

JADE

™

ECONOMIZER MODULE

62-0331—11

ADVANCED

SETUP

MA LO SET

45ºF

35 to 55 ºF;

increment by 1º

Temp to activate Freeze Protection (close damper or modulate to

MIN POS if temp falls below set value)

FREEZE POS

CLO

MIN

Damper position when freeze protection is active (closed or MIN

POS).

CO2 ZERO

0ppm

0 to 500 ppm;

increment by 10

CO2 ppm level to match CO2 sensor start level.

CO2 SPAN

2000ppm

1000 to 3000

ppm;

increment by 50

CO2 ppm span to match CO2 sensor; e.g.; 500-1500 sensor

output would be 500 CO2 zero and 1000 CO2 span.

STG3 DLY

2.0h

0 min, 5 min, 15

min, then 15

min intervals.

Up to 4h or OFF

Delay after stage 2 for cool has been active. Turns on 2nd stage

of mechanical cooling when economizer is 1st stage call and

mechanical cooling is 2nd stage call. Allows three stages of

cooling, 1 economizer and 2 mechanical.

OFF = no Stage 3 cooling.

SD DMPR POS

CLO

OPN

Indicates shutdown signal from space thermostat or unitary

controller. When controller receives 24 Vac input on the SD

terminal in conventional mode, the OA damper will open if

programmed for OPN and OA damper will close if programmed

for CLO. All other controls, e.g., Y1-O, Y2-O, EXH1, etc. will shut

off.

DCVCAL ENA

MAN

MAN (manual)

AUTO

Turns on the DCV automatic control of the dampers. Resets

ventilation based on the RA, OA and MA sensor conditions.

Requires all sensors (RA, OA, MA and CO2).

This operation is not operable with a 2-speed fan unit.

MAT T CAL

0.0 F°

+/-2.5F°