Messana mZone 12, Submittal Information

Page: 13 / 17

13
No
vember 2018
Finder
Relay
44.52.9.024
(supplied
by others)
DO1 DO2 DO3 DO4 DO5 DO6 DO7 DO8 DO9 DO10 DO11 DO12
ZONE THERMAL ACTUATORS (24 VDC) ZONE BUS
SHD
AO1 MIX AI NTC AO2 AUX DI AUX
0V 24V D+ D– 0V 24V Y SUPPLY RETURN 0V Y DI1
DO13
DRY CONTACT
DO14
DRY CONTACT
DO15 (PWR)
N L
14
22
24
11
dry contact
relay
DO
14
11
Device
being
controlled
AC power
A2
22
21
24
A1
12
11
14
COM
NO
COIL
NC
COM
NO
COIL
NC
0V 24V
DO
Relay holder pinout
(top view)
Relay pinout diagram
(bottom view)
A2
22
21
24
14
11
12
A1
110/220VAC
50/60Hz
12
21
21
Notes
1. 1 10VAC or 208VAC or 220VAC or 230VAC (50 or 60Hz) depending on the mZone AC power.
Disconnect the neutral (N) and line (L) wires connected to the relay holder on terminals COM
11
(0VAC) and COM
21
(110/220VAC
1
).
Cover the exposed neutral (N) and line (L) wires with twist-on connectors and tape over the wire nut for extra assurance.
Use the COM
11
as common and NO
14
as normally open or NC
12
as normally closed dry contact. Alternatively, or in addition, use the COM
21
as common and NO
24
as normally open or NC
22
as normally closed dry contact.
The two dry contacts (
11
-
14
/
12
and
21
-
24
/
22
) are electrically isolated but activated at the same time by mZone8DO8 or mZone12DO15.
To activate these contacts, insert a Finder mini relay model 44.52.9.024 (not included) in the relay holder and pull-up the holding band.
Rewiring mZone8DO8 and mZone12DO15 from 110/220VAC
1
wet contacts to
dry contacts
mZone module features one digital output (DO8 for mZone 8 and DO15 for mZone 12) wired as normally open
110/220VAC
1
wet contacts dedicated to directly activate a circulator pump or other high voltage devices. The
circulator pump connected to the wet contacts NO 14 (N) and NO 24 (L) will be turned on and off by the relay based
on the status of its related digital output (mZone8DO8 and mZone12DO15).
In case the circulator pump or another device need to be controlled with an on/off potential-free contact or a 24VDC
contact, the mZone8DO8 or mZone12DO15 digital output must be re-wired accordingly.
Follow the instructions below to rewire the two wet 110/220VAC
1
contacts into dry contacts.
Before proceeding disconnect power.
When completed, mark off the “PWR N | L” text on the label to avoid future errors.
Dry contacts
( 250VAC/6A power relays)