LAARS Pennant PNCP - Install and Operating Manual - Manual (Page 13)

Pennant Pool Heater Page 13
A concentration of chlorine in the heater can be
very destructive; therefore the following rules about
the installation and operation of such devices must be
followed:
1. The chlorinator should be installed so it
introduces the gas or solution downstream of the
heater.
2. The chlorinator should be wired so it cannot
operate unless the filter pump is operating.
3. The chlorinator should be provided with an anti-
siphon device so that the draining of the piping
after the pump shuts off will not siphon chlorine
solution into the heater.
4. When the operation of a chlorinator is such
that it must be installed in the pump suction, or
some other place where the chlorine solution
flows through the heater, corrosion of the
heater can occur. Excessive concentrations of
chlorine resulting from improper adjustment or
chlorinator equipment failure are responsible
for this corrosion. The heater warranty does not
cover the resulting damage to the heat exchanger.
4.3 Sensor Locations
Two sensors must be installed in the pool loop, as
shown in Figure 6. The inlet sensor for the temperature
control must be installed in the pool loop within 12”
(30 cm) of the inlet to the heater. This sensor is not
installed in a well. For sensitivity, it must be installed
in direct contact with the pool water flow. The second
sensor, the high limit sensor, must be installed in the
pool loop within 12” (30 cm) downstream of the heater
outlet. This sensor is a capillary and bulb. It shall be
used with the immersion well that is provided.
SECTION 5.
Electrical Connections
WARNING
The appliance must be electrically grounded in
accordance with the requirements of the authority
having jurisdiction or, in the absence of such
requirements, with the latest edition of the National
Electrical Code, ANSI/NFPA 70, in the U.S. and
with latest edition of CSA C22.1 Canadian Electrical
Code, Part 1, in Canada. Do not rely on the gas
or water piping to ground the metal parts of the
boiler. Plastic pipe or dielectric unions may isolate
the boiler electrically. Service and maintenance
personnel, who work on or around the boiler, may
be standing on wet floors and could be electrocuted
by an ungrounded boiler.
Single pole switches, including those of safety
controls and protective devices must not be wired in a
grounded line.
All electrical connections are made in the field
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
5.1.1 Sizes 500-1500
Pennant pool heater sizes 500-1500 use a single
120-volt fused supply. The installer can change the
single service heaters to use a separate circuit for the
pump, if desired. Instructions to make this change are
found in Section 5.1.3.
Pennant 500-1500 main power (L1, N1 &
Ground) shall be connected to the three wires (10
AWG) supplied. Over-current protection ratings can be
found in Table 8.
5.1.2 Sizes 1750-2000
Pennant Sizes 1750-2000 require two 120-volt
fused supplies.
Heater circuit can be identified with 10AWG
wires to include black, white and green (all solid
colors). Pump circuit can be identified with three
12AWG wires to include a black wire with a white
tracer (stripe), a white and green wire.
5.1.3 Separate Pump Circuit
Conversion to separate pump circuit will
necessitate removing the three jumpers within
the internal wiring of the 120-volt portion of the
heater (see Figure 7). Only do this with the power
disconnected to the unit!
To rewire the pump circuit, bring in another
120-volt fused supply (L2, N2 & Ground). Connect
incoming power (L2) to the main power switch using