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INSTALLER'S GUIDE
Table 4. Checkout for W7212, W7213, W7214 Economizer Connected to Honeywell Actuator (Cont.)
Step
DIFFERENTIAL ENTHALPY
2.
Execute stop one, Checkout Preparation.
Turn DCV MAX to mid position.
Place 620 ohm resistor across S
resistor makes OA enthalpy low).
Place 1.2K ohm resistor across S
makes RA enthalpy high).
Remove 620 ohm resistor from S
SINGLE ENTHALPY
3.
Execute stop one, Checkout Preparation.
Turn DCV MAX to mid position.
Set enthalpy potentiometer to A (fully CCW).
Set enthalpy potentiometer to D or E for W7212C (fully CW).
DCV AND EXHAUST
4.
Execute step one, Checkout Preparation.
LED for both DCV and Exhaust should be off.
Turn DCV MAX to mid position.
Turn MIN POS fully CW.
Turn MIN POS and DCV MAX to fully CCW.
Turn DCV MAX to mid position.
Connect 9V battery positive to AQ and negative to AQ1.
Remove jumper from N terminal (economizer goes into not oc-
cupied mode).
Adjust DCV MAX towards CW.
Adjust DCV MAX to fully CCW.
Reconnect jumper to N terminal.
Adjust DCV MAX and MIN POS pots.
Adjust DCV MAX and MIN POS pots to fully CCW.
Remove power from N terminal adjust MIN POS towards CW.
Adjust DCV MAX towards CW.
MINIMUM AND MAXIMUM POSITION
5.
Execute stop one, Checkout Preparation.
Connect 9V battery positive to AQ and negative to AQ1. Adjust
DCV MAX potentiometer to mid position.
Turn DCV maximum position potentiometer to fully CCW.
Turn minimum position potentiometer to midpoint.
Turn minimum position potentiometer fully CW.
Turn MIN POS to fully CCW.
W7212: Remove jumper from TR and N.
W7214: Jumper TR to O.
MIXED AIR INPUT
6.
Execute stop one, Checkout Preparation.
Turn DCV MAX to mid position; set enthalpy potentiometer to A.
Remove 5.6K ohm resistor (green sleeve) and place jumper from
T and T1.
Remove jumper from T and T1 and leave open.
14
Checkout Procedure
and + (white sleeve
O
and + (purple sleeve resistor
R
and +.
O
Proper Response
―
Free cool LED turn on; motor drives to approxi-
mately 45 degrees (half) open.
Free cool LED turn off; motor drives closed
―
Free cool LED turns on; motor drives to approxi-
mately 45 degrees (half) open.
Free cool LED turns off; motor drives closed.
―
Motor drives to mid position, 45 degrees open.
Motor drives fully open.
Motor drives closed.
LED for both DCV and Exhaust turn on.
Actuator drives to 45 degrees open.
Motor remains at 45 degrees open.
Motor will move to position set by DCV MAX pot.
Motor will drive closed.
Motor will drive to the most open position of the
pots.
Motor should not move.
Motor will move to position set by DCV MAX pot.
―
DCV LED turns on. Actuator drives to 45 de-
grees open.
Actuator drives fully closed.
Actuator drives to 45 degrees open.
Actuator drives fully open.
Actuator drives fully closed.
Actuator drives fully closed.
―
Free cool LED turns on.
Actuator drives to 45 degrees open.
Actuator drives to 45 degrees open.
Actuator drives fully closed.
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