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Installation Instructions:
1. Mount unit in desired location.
2. Slide switch on PD board to OFF position for models ALTV2416 and ALTV2416CB (Fig. 1, pg. 4).
Turn OFF main switch on all other models (Figs. 2-4, pgs. 4-6).
3. All units are factory set for 24VAC operation.
For 28VAC operation (for models with 24VAC/28VAC option only), adjust unit prior to mounting and applying
power as follows: Change the wire position so that the black wire [28V] is connected to the terminal marked [P] and
the yellow wire [24V] is connected to the terminal marked [S].
4. Connect AC power to the black and white flying leads of the transformer(s) (Figs. 1-4, pgs. 4-6).
Use 18 AWG or larger for all power connections.
5. Measure output voltage before connecting devices. This helps avoid potential damage.
Terminals marked [1P - 8P] are positive of the same polarity.
CAUTION: Determine the maximum operating voltage of the equipment being powered before adjusting
the output voltage.
6. Connect devices to terminals marked [1P - 1N through 8P - 8N] on PD8/PD8CB board (Fig. 1, pgs. 4),
carefully observing polarity [1P - 1N through 16P - 16N] on PD16W board.
7. Slide switch on PD board to ON position for models ALTV2416, and ALTV2416CB (Fig. 1, pg. 4).
Turn main switch on all other models to the “RESET” (ON) position (Figs. 3-5, pgs. 5-6).
8. Green LED will illuminate when unit is powered.
9. Upon completion of wiring, secure enclosure door with screws (supplied).
Caution: Equipment to be installed / serviced by authorized / trained personnel only.
Shut branch circuit power before installing / servicing equipment.
WARNING: To reduce the risk of fire or electric shock, do not expose the unit to rain or moisture.
This installation should be made by qualified service personnel and should conform to all local codes
and in accordance with the National Electrical Code.
Terminal Identification:
PD8/PD8CB - Power Distribution Module
1P - 8P Positive AC output.
1N - 8N Negative AC output.