Coates 12415CE Handbuch für Installation und Betrieb - Seite 3
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B.
Installation: Plumbing
Pipe the heater as shown in Figure 2 to the inlet and
outlet openings on the right side. Connect the heater
in line between the filter discharge and pool.
water line coming from the filter should be connected
to the heater inlet, and the discharge line to the pool
should be connected to the outlet. The pool will not
heat properly unless it is plumbed correctly. If plastic
pipe is used, it should be suitable for at least 120°F
(49 °C).
A plumbing bypass around the pool heater is not
necessary unless flow rate though the heater exceeds
80 GPM. A minimum flow rate of 20 GPM is required.
Lack of sufficient flow will not allow the flow switch to
activate the heater.
It may be necessary, in larger Olympic-sized or public
pools, to use two or more heaters to obtain sufficient
KW capacity. If so, the heaters must be placed in
parallel, so that each heater takes equal flow.
DRAINAGE: A method of draining water away from
the heater and other equipment is to be provided. The
heater should be flushed at the end of each swimming
season.
During flushing or service, water may be
spilled and could cause damage to the floor or other
equipment.
A drain valve is to be installed in the
INLET plumbing.
3.0
ELECTRICAL INSTALLATION
First:
1. Check nameplate rating to insure the
heater matches your electrical supply.
2. CHECK ELECTRICAL CONNECTIONS
TO ALL COMPONENTS within the heater
for tightness. These can become loose
during shipment and handling.
3. Check components for any moisture, rust,
or dust which may have accumulated
during shipping, and clean or dry where
necessary.
All pool heaters covered in this manual have integral
thermostats, transformers, contactors and sequencers
where required.
All other internal connections are completed and
tested at the factory.
Wiring diagrams on pages 6 through 15 show internal
wiring and required field connections for various
models. Consult your local electrical code for proper
wire and conduit sizes, and other local requirements.
Do not connect the pool heater to, or operate at, a
voltage other than the voltage rated on the nameplate.
Bring wires of adequate size from a fused disconnect
switch or circuit breaker with an ampere rating of
125% of the ampere rating shown on heater nameplate.
Refer to Table 1 for wire sizes.
conductors to the power distribution block inside the
heater.
The
Ground wires must be insulated copper conductor and
the same size as supply wiring, but not less than #12
AWG.
KW
240V/1Ø
12
15
18
24
30
36
45
250MCM
54
300MCM
57
350MCM
Suggested size for insulated copper conductor
wires. Based on 125% correction factor for wire
with 75°C insulation.
A.
To Connect Pool Heater to Power Supply
These pool heaters have branch supplemental fusing
already installed in the element circuitry; see wiring
diagrams. To connect to the power supply, one needs
only to protect the main supply lines, either with a circuit
breaker
or
Suggested wire sizes are shown in Table 1.
Table 1
WIRE SIZE: AWG
208V/3Ø
240V/3Ø
6
8
4
6
3
6
1
4
2/0
2
3/0
1
2/0
3/0
3/0
fused
disconnect
switch
Figure 1
Connect power
480V/3Ø
8
12
8
10
6
10
4
8
3
8
2
8
1/0
6
2/0
4
2/0
3
(Figure
1).
3