Magic Aire HHA Series, Инструкция по установке, эксплуатации и обслуживанию

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035-000029-001 Page 13 HHA IOM 1.4 10/11/2021
NOTES:
1. This diagram represents the factory-installed electrical option with 4-20mA field signal input for fan
speed control. Includes VFD keypad mounted on outside of unit. Includes UVC light option with door
switches to protect workers from harmful high energy UVC exposure that can damage skin and eyes.
2. Typical wiring is shown. For exact wiring, refer to the wiring diagram provided with the unit.
3. Field wiring includes power wiring (upper left hand corner) and low voltage control wiring (terminal block
TB1).
4. Units ordered for 208V-240V voltage selection are factory wired for 240V. Field may rewire motor and
transformer primary tap for operation at 208V.
5. Selection of field provided and installed electrical components is the responsibility of the installer, in-
cluding branch circuit protection and wiring.
6. To start the fan, connect R and G to energize fan relay FR1. Control fan speed by providing 4-20mA
signal at + and - connections at TB1.
7. The control power (R and C at terminal block TB1) can be used to power a standard 24VAC thermo-
stat , DX relay and up to 2ea control valves.
INSTALLATION-ELECTRICAL (cont’d)
TYPICAL WIRING DIAGRAMS—
Control Option “A”, 4-20mA Fan Speed Control
208/230V—3
ø
with UV light option