4.6
Connection according UL and CSA in different applications
Only for motors/fans with the corresponding quality
mark (see rating plate)
4.6.1
Connecting the conduit for NEC and CEC approval
Conduits
Attention!
The MK116 and MK152 series of integrated variable speed drives for the ECblue fan type for the North
American economic region (identi
fi
able from the rating plate) are approved as frequency inverters
(Adjustable Speed Electrical Power Drive System) in compliance with UL61800-5-1 and CAN/CSA
C22.2 No. 274.
Furthermore, the motors have environmental type rating class 3 according UL50(E) for outdoor use.
Compliance with the following speci
fi
cations is mandatory for this:
•
Metric to inches threaded adapters, used to connect the conduits, can be ordered from
ZIEHL-ABEGG in a package of:
–
for MK116: part number 00297623
–
for MK152: part number 00297624
•
These are to be used to connect the motor as per the on-site conditions according to the
speci
fi
cations of the NEC
®
(National Electrical Code, ANSI/NFPA 70) and the relevant parts of
UL508/UL60497.
•
The electrician / plant contractor is responsible for correct connection of the adapter and the
conduits so that no damage can occur due to in
fi
ltrating moisture or water. When sealing the
conduit connections make sure the supplied O-rings are used. When screwing the conduits into the
thread adapters, use UL approved sealing tape (e.g., Te
fl
on tape).
•
The opposite end of the installation tube to the motor must be sealed so that moisture and dust
cannot be sucked in by the slight vacuum pressure existing in the terminal compartment.
•
The locking screws used within the MK116 and MK152 series are only for shipment. For installation
the locking screws must be removed.
•
It must be used a connection technology suitable for the environmental type rating of the drive!
Alternative:
fl
exible connection
If the connection of the conduits is not possible with the thread adapter due
to a lack of installation space, ZIEHL-ABEGG recommends its customers
use an UL514B approved
fl
exible connection hose system.
As an example it can also be used on equipment and machines. However,
applicable here is that the equipment / machine must be con
fi
gured /
approved in accordance with UL508/UL60497.
Possible suppliers: - Anamet, - Flexa GmbH, - Thomas & Betts
Attention!
ZIEHL-ABEGG3cannot provide any warranty on the environ-
mental type rating, class 3 for this.
Independent of the type and manner of the conduit / tube connection, correct connection of the supply
line(s), the safety of people and objects must be provided at all times.
Assembly instructions
ECblue BASIC-MODBUS, ECblue BASIC
Mounting
L-BAL-F079D-GB 2044 Index 002
Part.-No.
17/80
