HIRED-HAND ICS-500, Manual

Page: 17 / 34

Integrated Control System 500 15
the sensor reaches one degree above the high limit, the back-up board would
start all stages set to cool one. (This could be any, or all of your cool stages.) If
temperature continues to rise, the back-up would then start cool 2 (all other
cool stages). This should lower temperature below the setpoint.
If you use the unit as shipped, the back-up system would engage all cool stages
at the same time.
Note: If you want the two step cooling option, you will need to wire the panel as
shown in the drawing on the next page.
6.2.2.2. Low Limit
If your house temperature drops below the low limit, all heat stages would be
turned on by the back-up board until temperature is brought back up to the low
limit.
6.2.2.3. Reminder Reset Button
The last control on the back-up board is the reminder reset button. During a
growout you lower house temperature as your animals mature. It is vitally
important to reset your high and low limits as well. If you did not reset your
back-ups, the difference between target temperature and the back-up setpoint
could reach 30 to 40 degrees. The reminder alert buzzer warns you to check
your back-up setpoints every five days. Note: It is important to check your
back-up setpoints daily.
Z2
Z1
RLY1
RLY2
RLY3
BP1
uln2803n
pic16c71xt
X1
C4
C5
U2 U1
R20
R19
R18
R8
R7
Q2
R9
R10
Q1
R17
R16
R15
R14
R11
R12
R13
R6
R5
R4
R3
C3
VR2
C2 C1
HIRED-HAND
R
-
+
ALARM
VR1
J3
ZNR1 ZNR2
BR1
J5
J9
J8
J7
AC
SENSOR
+
-
J2
J1
J4
J6
COOL 2
COOL 1
HEAT
J11
J10
PCB131 (Rev B) 19 July 1994 M. Calvert
c 1994,1995 Hired Hand, Inc.
P/N 3580-0131
Z4
Z3
White
Shield
Black
The White and Shield wires need
to be crimped together and
connected to this terminal.
Connecting Sensor to
Back-Up Board