Hired-Hand Farm Hand Series: POWER VENT INLET - Manual (Page 13)

Part No. 4801-0149 Rev 1-01 Farm Hand Power Vent 11
11.2. Connecting the Curtain Closed Switch from the PowerTrak to the
Controller
PowerTrak
AUX
SWITCH
CONTROLLER AC IN
HO
T
NE
U
T
.
LO
WE
R
GN
D
.
HO
T
OU
T
CL
O
S
E
IN
OP
E
N
IN
CO
M
U
PPE
R
PowerTrak W6
R101
R HIRED-HAND Com
N.O.
N.C.
Al
ar
m
R100
Q100
Z100
D100
Z3
D2
RLY2
RLY100
R16
R15
R14
W5
R4
C1
TER1
P1
BP4 BP3
BP2 BP1
Open
Close
Close
Com
Open
Com
U
ni
t 2
U
ni
t 1
Signal
GND
+12V
Gnd
~
~
White
Black
-+ Da
ta
Te
m
p
AC
-I
N
X
duc
e
r
MOV1
MO
V 2
R1
C3
C2
X1
U1 U2
U4 U3
R8
Z5
Z6
Q1
Q2
C4
BR1
R10
R12
R13
R11 R7
C5
R3
C6
D1 Z4 RLY1
VR2
OUT IN ADJ
RKS-11DX-12
Network
Termination
PCB146 Rev 'C'
Copyright (c) 1997, '98
Hired-Hand Mfg, Inc
Ellard
ADJ IN OUT
VR1
R9
Z1
Z2
R5
W1
W2
W3
W4
Curtain
Closed
R300
Curtain Closed Switch
The curtain closed switch signals the controller when the curtains are closed. This information is used in
enabling and disabling alarms.In the alarms section of this manual you will see that the cycle alarm looks
for a rise in static pressure within a given time period. If the curtains on the house were open, you normally
would not see this rise in pressure, so the alarm would go off each time the cycle had elapsed. With this
switch in place, the cycle alarm would be disabled unless the curtains were closed, preventing the
unnecessary alarm.
The controller ships with a jumper wire installed between both terminals on the circuit board. If your house
has curtains, you need to remove the jumper, and wire the unit to the curtain machine as shown above.
Tunnel House – Wire from Farm Hand Power Vent to the Tunnel Inlet Machine.
Conventional House – Wire from Farm Hand Power Vent to the Main Curtain Machine.
When the switch is opened, the low pressure alarm and the cycle alarm are disabled. The High Pressure
alarm is functional regardless of switch position.