Lennox SCA 010 Installation, Operation & Maintenance Manual page 86

BMS VOL BMS VOL BMS VOLT FREE CONT BMS VOL BMS VOL T FREE CONT T FREE CONT T FREE CONT T FREE CONTACTS KIT
This option is used for making a connection to the BMS
only, by a set of volt free contacts.
It requires the addition of a KP05 card, if this is not already
in place, and a KP12 card.
Input connection must be by screened cable only.
Limits of relays :
• 10A – 250V with resistive load
• 4A – 250V with inductive load.
Input Function
A Instruction shift :
A 0/20mA signal can be used to add a linear
shift of 0 to 10 °C to the setpoint temperature
(mid-point between air-conditioning and
heating setpoint). If your command signal is
a different type, our engineers can advise you
on the type of interface to use before input to
the CLIMATIC™ (0-10V with interface)
B Unit on/off (ROOF-TOP on when unit is off).
C Contact - force night operation
D Contact - force day operation
E Contact - force operation at 50%.
F Lock heating function
G Lock air-conditioning function.
H Feedback of information from an external
client component
B
1
12V 12V
J2
J3
KP 12.2
8
J3 J1
KP05
ACTS KIT ACTS KIT ACTS KIT ACTS KIT
C E G
D F
2 3 4 5 6 7
7 2
Output Function
a Signal filter fault
b Signal fan fault
c Signal compressor fault
d Signal fault on gas burner or electric coil.
e Signal supplying temperature greater than
setpoint (Setpoint 74)
f Signal supplying temperature less than
setpoint (setpoint 71)
g Command from an external client component
H
RL1 RL2 RL3 RL4
8
Com No Com No Com No Com No
J3
a c d
b
A
1
RL5 RL6 RL7 RL8
Com No Com No Com No Com No
e f g
IOM / Rooftop Smart and Linéa™ Range - Page 85
J6 J4
Figure 77