Roberts Gorden System Control HP 208 V 3 - Manual (Page 17)

SECTION 4: T YPICAL E XTERNAL W IRING D IAGRAMS
11
load relay to the optional outside air blower.
4.4.1 External Wiring Connection Details
The cable used for all the wiring must be rated for
line voltage up to 600 V.
The low voltage circuit conforms with Class 2
separation of circuit requirements. National Electrical
Codes
® for wiring class 2 low voltage circuits
must be followed.