7
3. Ultra violet light may damage certain plastics and
exposed non-UVC protected wires. (Drain pans will
not be damaged.) Wrap exposed plastic and wiring
with aluminum tape or use metal conduit.
4. Mount field-provided light-switch disconnect switch
on unit. See Fig. 11 for location. Disconnect switch
should have a waterproof housing.
5. A separate source power supply must be routed to the
accessory germicidal lamp’s unit mounted disconnect
switch per applicable codes. Unit wiring and control
box connections should not be used. Refer to the Pack-
age Usage table for electrical characteristics of power
supply. Power source must be a suitable fused,
grounded, protected source with the correct voltage.
Other voltages will permanently damage the germi-
cidal lamp.
Wire per Table 1.
6. Any hinged potential access panel or door to the instal-
lation area must be interlocked with the accessory
power source to turn the lamp off if the door is opened.
Access doors should be labelled with appropriate
warnings about exposure to ultra-violet light.
A pushbutton door interlock switch (Carrier Part No.
HR54ZA101) is required on all hinged access panels.
Use a field-fabricated and -installed bracket to mount
the door interlock switch. See Fig. 8. Use insulated
sleeve terminals for connection to interlock switch.
The pushbutton door interlock switch is not required
on non-hinged access panels. Door interlock switch
should be located on the side of the access door that
opens. Locate the switch near the top of the door so it
will not be in a location where it interferes with main-
tenance or service.
Run wiring into disconnect switch. Door interlock
switch should be wired into the power (Black) lead,
between the disconnect switch and the junction box
(installed in Step 10), to break power to the accessory
when the door is opened.
7. Access doors may be equipped with a glass or Lexan
®
window to view lamps. A glass or Lexan window will
not pass ultra-violet rays and is not a safety risk.
8. Using the accessory as a template, mark two 1-in.
insertion holes on the mounting surface. Mark 8 holes
for accessory mounting. See Fig. 2 for location. The
1-in. holes are used for electrical connections and the
germicidal bulb. See Fig. 5.
9. Drill 1-in. holes where marked.
10. Use field-supplied no. 10 self-drilling screws to attach
accessory to unit.
NOTE: Holes can be drilled in unit if self-drilling
screws are not used. Drill 8 holes for eight no. 10
screws used to attach accessory to unit. Using eight no.
10 screws, attach accessory to unit.
Be sure accessory has a watertight seal against unit
wall. Use standard 1/2-in. strain relief connectors
when running wiring through any hole in unit.
Be careful not to drill into coil, refrigerant lines, or other
objects inside the HVAC unit. Damage to unit can result.
UVC EXPOSURE HAZARD
RISQUE D'EXPOSITION AUX UVC
Turn off power to UVC lights before servicing or repairing.
Never expose unprotected eyes or skin to the UVC light.
This unit contains high energy ultraviolet C-band (UVC) germicidal
lamps which can cause serious temporary eye and skin irritation.
Couper l'alimentation des lampes UVC avant l'entretien ou les
reparations.
Cet appareil contient des lampes germicides haute energie a ultra-violets
de bande C (UVC), qui peuvent causer l'irritation momentanee grave des
yeux et de la peau.
Ne jamais exposer les yeux ou la peau non proteges a la lumiere UVC.
CU000135
WARNING
!
AVERTISSEMENT
!
`
`
`
`
`
`
`
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Fig. 10 — Warning Label
TO DISCONNECT
SWITCH OR
JUNCTION
BOX
BLK
WHT
GRN
GRN
GRN
Fig. 9 — Accessory Wiring
