3
Marvair MPC-10 PDS/Manual, 09/2020 New
i
mportant
s
afety
p
recautions
WARNING
ALWAYS TURN OFF POWER AT THE MAIN POWER SUPPLY BEFORE INSTALLING, CLEANING, OR
REMOVING THERMOSTAT.
•
This controller is for 24 VDC applications only; do not use on voltages over 30 VDC
•
Do not short across terminals of system control to test operation; this will damage your controller and may void
your warranty
•
All wiring must conform to local and national electrical and building codes
•
Use this controller only as described in this manual
t
o
i
nstall
mpc-10 t
elecom
c
ontroller
WARNING ELECTRICAL SHOCK HAZARD
TURN OFF POWER AT THE MAIN SERVICE PANEL BY REMOVING THE FUSE OR SWITCHING THE
APPROPRIATE CIRCUIT BREAKER TO THE OFF POSITION BEFORE REMOVING THE EXISTING
THERMOSTAT.
IMPORTANT
Marvair MPC-10 installation must conform to local and national building and electrical codes and
ordinances.
Note: Mount the MPC-10 about five feet above the floor. Do not mount the MPC-10, in direct sunlight, behind a door,
or in an area affected by a vent or duct. The MPC-10 is designed for interior use only.
1.
Turn off power to the heating and cooling system by removing the fuse or switching off the appropriate circuit
breaker.
2.
Put controller against the wall where you plan to mount it (Be sure wires will feed through the wire opening in
the base of the MPC-10).
3.
Mark the placement of the mounting holes.
4.
Using a drill bit, drill holes in the places you have marked for mounting.
5.
Use screws to mount MPC-10 to wall.
6.
Feed wires through the bottom left cable gland.
7.
Insert stripped, labeled wires in matching wire terminals. See Wiring Diagrams. CAUTION! Be sure exposed portion
of wires do not touch other wires.
8.
Gently tug wire to be sure of proper connection. Double check that each wire is connected to the proper terminal.
9.
Tighten the cable gland to make a water tight seal.
10.
Close the cover on the MPC-10.
11.
Plug in ethernet cables from each unit to the bottom of the MPC-10.
12.
Turn on power to the system at the main service panel.
13.
Test MPC-10 operation as described in “Testing the MPC-10”.
r
emote
s
ensor
i
nstallation
1.
Remove cover from the remote sensor housing
2.
Select an appropriate location for mounting the remote sensor
3.
Mount remote sensor unit using hardware provided
4.
Install 4 wires between remote sensor and MPC-10 (use shielded cable that is adequately grounded)
a.
Wire 1 should run between an unused DC+ terminal in the controller and +V on the temperature/humidity
sensor
b.
Wire 2 should run between an unused DC- terminal in the controller and GND on the temperature/humidity
sensor
c.
Wire 3 should run between AI0.1 in the controller and RH on the temperature/humidity sensor
d.
Wire 4 should run between AI0.0 in the controller and T on the temperature/humidity sensor
