Standard Checkout Procedure; Checkout W7212 - Honeywell Design and Application Technical Reference Manual

Section 13 - Checkout
To checkout the operation of the W7212,
W7213 or W7214:
1. Remove the MAT or DAT sensor from
T-T1.
2. Remove the jumper from P-P1 and place
it on T-T1.
3. Remove the OAT and RAT sensors from
SO and SO+ and SR and SR+.
4. Place a 620 ohm resistor across SO and
SO+ and a 620 ohm resistor across SR
and SR+.
63-8594-02 Honeywell Economizers

Standard Checkout Procedure

Checkout W7212

N1 N
REMOVE
JUMPER P-P1
P1 P
JUMPER T-T1
T
T1
AQ
AQ1
SO+
SO
620 OHM 1/4W
RESISTOR SR
SR+
B
A
When the first line of a procedure states:
"Execute step one. Checkout Preparation."
this directs you to reset the logic module
to the initial checkout mode before
proceeding.
EXH
TR TR1
Set
EXH
24
24
VAC
VAC
COM
HOT
Min
Pos
+ –
Open
IAQ
1 2
Max
IAQ
5
IAQ
MIN
3 4
Free
Cool
EF
EF1
C
D
5. Connect the actuator to the + and -.
6. Provide 24 Vac to TR and TR1
7. Provide 24 Vac hot to terminal 1.
8. The motor will drive open.
9. Remove the 24 Vac from TR and TR1 and
the motor should drive close.
If using a Honeywell DCA, the + on the logic
module will be connected to 3 and does not
need to be connected to – since the actuators
are internally connected to ground.
168
24 VAC POWER
0-10 VDC OUT
TO ACTUATOR
24 VAC POWER
(HOT) TO 1
M23971A