Lennox MINIAIR, Installation, Operating And Maintenance

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MINIAIR-IOM-0310-E 6
Electrical connections
•
Qualified personnel according to the supplied schemes must carry out the electrical connections at the control
panel.
•
Insure that the voltage and the frequency shown on the technical plate correspond to the connecting power supply.
•
For the general power supply of the unit, and its accessories, the use of adapters, multiple plugs and extension
leads is to be avoided.
•
It is the responsibility of the installer to insure that the installation of the unit is as close as possible to the
mains power supply, or sufficiently close to protect the electrical parts.
•
Connect the unit to an efficient power point, using the correct screws as supplied with the unit.
•
In the unit with relay board the screws of the connectors must be screwed with tork equal to 0,5 Nm
6 – W
IRING
D
IAGRAMS
Direct connection for models 10 and 20
Follow diagram on the
figure 7 .
Direct connection for model 25 up to 50
Follow diagram on the
figure 8 .
Direct connection for model 60
Follow diagram on the
figure 9 .
Notes
In the wiring diagrams of direct driven fan type units, direct connections to the low fan speed are indicated; for medium or
high speed connection, connect the neutral to the clamp 2 (medium) or 3 (high).
“A” is a possible remote On-Off (by Others).
Before starting any operation, insure that the general power supply has been isolated.
All the electrical connections must be protected at the source by the installer.
Follow the connection of the unit and its accessories using adequate cabling for the power used, and
respecting the country regulations. The dimensions of the cabling must be sufficient to support a
voltage drop in start up phase inferior to 3% of the nominal.
TO CONNECT CONTROL ACCESSORIES (LXMACVU, LXMAPCR, LXMARQU) CHECK THE SPECIFIC
INFORMATION SUPPLIED WITH RKE MANUAL.