Armstrong E10.2 Handleiding voor installatie en gebruik - Pagina 5
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four green ground screws inside of the terminal box (use a
minimum 18 awg wire size).
For 208/240/277 v models: Referring to diagram 2 below,
connect the black (l1) and blue (l2) leads of the supply
wire to the black and white motor leads respectively inside
the terminal box. Connect the ground wire to any one of the
four green ground screws inside of the terminal box (use a
minimum 18 awg wire size).
diagram 1 120 v installations
To auxilliary
control, if
required
L
N
pump
motor
Typical wiring diagram for
single phase, 120 v, 60 hz power source
diagram 2 208/240/277 v installations
To auxilliary
control, if
required
l2
l1
pump
motor
Typical wiring diagram for
a single phase, 240 v, 60 hz power source
b three phase, 208/277 v, 60 hz power source
7 Replace the terminal box cover.
The motor is thermally protected for your safety so overload
protection is not necessary. All that is required is a fused plug
or circuit breaker in the power line.
Electrical information can be found on the nameplate of
the motor.
Fusible disconnect
or circuit breaker
by others
Pump motor
thermally protected
Fusible disconnect
or circuit breaker
by others
Pump motor
thermally protected
E.2 Series high efficiency
circulator
3 .0 start up
1 Before starting up the circulator, proper installation practice
recommends a thorough flush and draining of the hydronic
system, ensuring removal of all foreign materials. Fill the
system with clean water or glycol solution before starting.
2 Air must be completely vented from the system before
starting up the circulator. If the system is not completely
vented of air and the circulator is allowed to run dry, the
mechanical seal will be damaged.
3 When the system has been completely filled and vented, only
then can the pump be started.
4 .0 preventive maintenance – inspection
E.2 Series circulators are fitted with permanently lubricated ball
bearings and do not require lubrication.
Although Armstrong long-life circulators are designed to
provide years of worry-free service, it is good maintenance
practice to inspect the entire hydronic system periodically –
including the E.2 Series circulator – for potential problems. If
there is any evidence of leakage or damage, repair or replace
the pump.
Disconnect and lockout the power before servicing.
5 .0 pump replacement in an existing
installation
5 .1 complete pump
1 Ensure that electric power is disconnected and locked out.
Loosen the screw from the terminal box cover and remove
the cover. Disconnect the supply wires from the circulator
only, leaving the capacitor wires connected.
2 If valves have been installed, on the suction and discharge
sides of the pump, close them before attempting to remove
the circulator from the volute. If no valves have been installed
it may be necessary to drain the system.
Allow water to cool to 100°f (40°c) before draining
the system. It is best to leave the drain valve open
while working on the system.
3 To relieve any residual pressure which may be present in
the pump body, loosen the flange bolts and gently move
the pump body back and forth to allow the pressurized
water to escape.
i n s ta l l at i o n &
o p e r at i n g i n s t r u c t i o n s
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