Johnson Controls York Smart Equipment SC-EQ, Руководство по установке

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JOHNSON CONTROLS
23
SECTION 2 - INSTALLATION
FORM 450.50-N1
ISSUE DATE: 08/19/2019
2
WALL MOUNTING
To mount the SC-EQ Enclosure on a wall:
When wall mounting, make sure there is
no interference with other components in
the near vicinity. Use appropriate conduit
to connect the power and communications
wiring.
1. Check for proper clearances for the necessary
electrical and communications cable runs.
2. Ensure that power and communications wiring is
in compliance with all local, national, and region-
al codes, and customer requirements.
3. Select a suitable location and mark the anchor
points. Ensure that the enclosure is level. See Fig-
ure 25 on page 23 for an example.
4. Drill the appropriate holes in accordance with the
type of wall anchor used.
5. Install the enclosure on the wall.
6. Check that the mounting is secure and the wir-
ing connections are correct and tight. Check that
no loose wire strands or other metal objects that
could cause a short circuit are on the circuit board.
7. Complete wiring as described in the Applying
Power section.
FIGURE 25 - WALL MOUNTING
ISN
Mic
roG
atewa
y
Conduit
YORK Chiller
Mirco Panel
SC-EQ
Enclosure
241.3mm (9-1/2 in.)
136.5mm
(5-3/8 in.)
Template for Mounting
on a wall
LD20007
APPLYING POWER
When using an enclosure type of SC-EQ, power can
be supplied from either a separate power supply or
the main terminal strip in the chiller panel. Locate the
power source within 0.9 m (3 ft) of the SC-EQ En-
closure, and protect it with a suitable fuse or circuit
breaker. Ensure the power is supplied from a dedicated
source and not controlled by a programmed switch.
If the enclosure is mounted on a wall, the wiring from
the power source to the SC-EQ Enclosure must always
run in a suitable conduit. To obtain the best Electromag-
netic Interference (EMI) and Electromagnetic Compat-
ibility (EMC) performance, ensure that the conduit is
bonded to the metal of both enclosures. Scraping the
paint around the knockouts usually helps provide a bet-
ter electrical connection between the joining parts.
Risk of Electric Shock. Disconnect or
isolate all power supplies before making
electrical connections. More than one
disconnect or isolation may be required to
completely de-energize equipment. Con-
tact with components carrying hazardous
voltage can cause electric shock and may
result in severe personal injury or death.
FIGURE 26 - SC-EQ IN ENCLOSURE
LD19996
120 VAC
or
240 VAC
Power
J10
24 VAC
Power