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7. ELECTRICAL
CONNECTIONS
Refer to the unit rating plate below the control panel for
precise power requirements for your unit, and for ampacity
and over-current protection requirements.
All wiring must be in accordance with the National Electrical
Code, NFPA No. 70, latest edition, and all applicable state
and local codes. See wiring diagram on page 11.
WARNING: This unit MUST be installed using
A
flexible conduit for supply wiring to the unit. This will
allow movement of the conduit whenever the junction
box is removed for service - see "Service Access to
Heaters" on page 37.
•
Locate the equipment disconnect means within 3
feet (0.9 m) of the heater's electrical enclosure, or
as close to the heater as possible. Always satisfy
applicable codes and standards.
•
A means to fully disconnect the unit from the main
power supply must be incorporated in the wiring of
the unit.
NOTE: Refer to the National Electrical Code, Article
680, for general requirements for swimming pools and
equipment, and to Article 440 for special considerations
necessary for circuits supplying hermetic refrigeration
motor/compressors.
•
In sizing power wiring, be especially aware of up-sizing
requirements necessary due to wiring distances.
Always satisfy applicable codes and standards.
•
Connect electrical Line 1 (L1) and Line 2 (L2) to
the terminals indicated in Figure 7 for proper wiring.
Electrical installation should be performed by a
licensed electrician only.
This unit is compatible to work with external control
systems, (optional harness provided in the packaging
per NOTE on page 5) heat-on-demand options and other
Model No.
Power
4550
208/230V -
5550
Single Phase
6550
- 60Hz
8550
* Reference only - see National Electrical Code or local codes for wire gauge length limits.
** NR= Not Recommended
10
Breaker Size
Min.
(AMP)
Circuit
Ampacity
MAX.
38
60
40
70
46
70
46
70
Table C.
Typical System Electrical Power Requirements
external time clock overrides. Refer to the external control
system's instructions, and "Remote Mode Selector", on
page 31 of this manual, for installation information.
An earth ground lug is located to the right-side of the water
connections.
Figure 7.
Recommended Wire Length from Breaker to Heater*, ft. (m)
12 AWG
10 AWG
NR**
89 (27.1)
142 (43.3)
NR**
94 (28.7)
151 (46.0)
NR**
97 (29.6)
156 (47.5)
NR**
NR**
110 (33.5)
L1 GND
For 208V operation, ensure to
change the transformer to the
208 and C Terminals.
Terminals L1 and L2
8 AWG
6 AWG
4 AWG
225 (68.6)
359 (109.4)
239 (72.8)
383 (116.7)
247 (75.3)
396 (120.7)
175 (53.3)
280 (85.3)
L2
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