Laars Pennant PNCP 500, Инструкция по установке и эксплуатации

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Pennant Pool Heater
Page 13
relay (mentioned above) is installed, the other field-
installed electrical safety devices and controllers
should be wired in series with that switch or relay.
5.2 Temperature (Operating) Control
The Pennant temperature control operates by
measuring the pool loop return temperature, before the
heater inlet piping. It is adjustable to a maximum of
104° F and will prevent heater operation at return
temperatures above 104° F. It also controls the pool
heater pump and the temperature of the water entering
the heat exchanger. It also controls the Pennant pump
operation and the mixing system, which tempers the
water entering the heat exchanger to prevent damage
from condensation. The sensors for the control are
installed as shown in Figure 6 and Section 4.3, Sensor
Locations. The automatic mixing system sensor, already
installed, is shown in Figure 5. During operation, the
automatic mixing system diverts water from the outlet to
the inlet to “pre warm” the water to a minimum inlet
temperature of 120°F. This prevents condensation from
forming, which can damage the heater.
5.3 Programming the Temperature
Control
5.3.1 Temperature Control Overview
The digital display on the control has the
following uses:
• To display the actual pool loop temperature
during normal operating mode.
• To allow the user to view and adjust the
control settings.
Figure 6 identifies the control buttons.
The Pool Heater Temperature Control face
contains an LCD screen and four (4) buttons (see
Figure 7). The LCD screen will display the pool loop
return temperature during normal operation. When the
control is first powered up, it displays
. It then
displays the temperature at the pool loop sensor. After
the temperature is displayed, the current settings
(parameters) may be viewed. To scroll through the
parameters, press the down arrow button to advance to
the next parameter.
Figure 7. Pool Heater Controller.
wiring terminal strip, which is located at the right side
of the appliance.
NOTE: All internal electrical components have been
prewired. No attempt should be made to connect
electrical wires to any other location except the field
wiring strip.
5.1 Main Power
Pennant appliances are fitted with pigtail leads
for main power connection. Connect a fused 15-
ampere, 120-volt supply to the black wire. Neutral leg
is connected directly to the white wire. Ground wire is
connected to the green wire. Pump-mounted units,
sizes 1250 to 2000, have separate electrical
connections for the pump. Either connect these to a
separate 15A circuit or increase the circuit size for the
main boiler to accommodate the additional pump load.
Wiring diagrams are shown in Section 10 in
Figures 12 through 15. Field wiring is shown in
Section 10 in Figures 17 and 18.
IMPORTANT NOTE: If the backwash operation is
manual the heater must be shut off manually during
backwashing.
Auxiliary Time Clock Wiring:
If a time clock is used to control the pool filter
pump operation, a separate switch or relay must be
used to shut off the heater at least 15 Minutes before
the filter pump is shut off. A remote switch or relay, if
installed, should be connected across the “Other Ints”
terminals on the field-wiring terminal board after
removing the factory-installed jumper. For manual
shut off, a switch is provided and identified with a
label on the right side of the heater.
All field-installed electrical safety devices and
controllers may also be connected across the
Pennant’s “Other Ints” terminals after the factory-
installed jumper is removed. If a remote switch or
Pump-Mounted 500–1000
BOILERS / WATER HEATERS
VOLTS PHASE AMPS
115 Single Less than 12
PUMP
Included in Pennant Connection
BLOWER(S)
Included in Pennant Connection
Pump-Mounted 1250–2000
BOILERS / WATER HEATERS
VOLTS PHASE AMPS
115 Single Less than 12
PUMP
VOLTS PHASE AMPS
115 Single Less than 12
BLOWER(S)
Included in Pennant Connection
Table 8. Electrical Data.