SECTION 8: M
OTOR
W
IRING
17 of 29
SECTION 8: MOTOR WIRING
All
w
iring m
u
st comply
w
ith c
u
rrent
w
iring reg
u
lations
and any local reg
u
lations
w
hich may apply. Al
w
ays
s
w
itch off s
u
pply and disconnect before ser
v
icing.
8.1 Impeller Rotation Direction
Prior to operation of p
u
mp in heating system,
v
erify
proper impeller operation and rotation. See impeller
rotation direction arro
w
label on p
u
mp scroll for
correct rotation direction. The motor m
u
st be
w
ired
for clock
w
ise or co
u
nterclock
w
ise rotation. For
re
v
erse rotation, follo
w
man
u
fact
u
rer's
w
iring diagram
located on motor.
IMPORTANT: Improper rotation of the impeller can
prod
u
ce only half of the
v
ac
uu
m req
u
ired for proper
system operation.
8.2 EP-100 Wirin
g
The EP-100 motor is
w
ired for 1 Ø, 115 V, 60 Hz
operation. Ho
w
e
v
er, the motor can be re
w
ired for
230 V operation by changing motor connections as
indicated by the diagram on motor. For proper motor
w
iring, follo
w
man
u
fact
u
rer's
w
iring diagram located
on motor.
Motor operation can be changed from
co
u
nterclock
w
ise to clock
w
ise as sho
w
n
on Page 8,
Figure 3
.
When controlled by a CORAYVAC
®
Heating Control,
u
se contactor package 17A (P/N 10050011). See
ROBERTS GORDON
®
CORAYVAC
®
Heating Control
Man
u
al (P/N 10091601NA)
w
iring details.
Wire the press
u
re s
w
itch per the CORAYVAC
®
(P/N 127102NA) for CRV models, CORAYVAC
®
Classic SF (127302NA) for CRVSF models or
VANTAGE
®
CTHN (P/N 152101NA) Installation,
Operation and Ser
v
ice Man
u
als.
DANGER
Electrical Shock Hazard
Disconnect electric before service.
Appliance must be properly grounded.
Failure to follow these instructions can result
in death or electrical shock.
