NOTES:
1. All units are factory-wired to customer order.
For 208 Volt/60 Hz or 200 Volt/50 Hz, use the black and red transformer leads.
For 230 Volt/60 Hz or 220 Volt/50 Hz or 220/240 Volt/50 Hz units, use the
black and orange transformer leads.
For 265 Volt/60 Hz units, use the black and brown transformer leads.
2. Supply wiring must have copper conductors only.
3. Insulate all unused wire ends.
4. Interrupt 24 VAC power or remove the compressor input to reset the unit.
5. This unit has been factory-set with the jumpers in the indicated positions:
NRS TEST AUTO 24 VAC PILOTN
6. The optional “Water Temperature Switch” (WT) is also included in the optional “Extended Range Package”
(EP)and the optional “Low Temperature Package” (TL).
7. A 24 VAC signal is produced between this wire and terminal “R” when the N.O. contacts from the optional
“Dirty Filter Switch” (DF) close.
8. The field connection to this optional “DF” lead is made through the perforated plastic grommet beneath the
terminal strip.
9. If the optional “Dirty Filter Switch” (DF) trips, it must be manually reset.
7
NORM
MAN
COM
NORMAL
