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. Wiring diagrams are
located on pages 44 and 45.
• Locate the equipment disconnect means within 3
feet of the heater’s electrical enclosure, or as
close to the heater as possible. Always satisfy
applicable codes and standards.
• In sizing power wiring, be especially aware of up-
sizing requirements necessary due to wiring
distances. Always satisfy applicable codes and
standards.
• Electrical installation should be done by a licensed
electrician only.
Model
No.
Power
Min.
Circuit
Ampacity
Breaker Size (A)
Recommended Wire Length from
Breaker to Heater*
MIN.
MAX.
10 AWG 8 AWG
6 AWG
4 AWG
5450
208/230-1-60
30
50
60
94 ft
151 ft
239 ft
383 ft
6450
208/230-1-60
29
50
60
97 ft
156 ft
247 ft
396 ft
6453
208/230-3-60
26
35
40
109 ft
174 ft
276 ft
442 ft
8450
208/230-1-60
41
50
60
NR
110 ft
175 ft
280 ft
8453
208/230-3-60
34
40
50
83 ft
133 ft
211 ft
338 ft
* Reference only - see National Electric Code or local codes for wire gauge length limits.
Table A: Typical System Electrical Power Requirements
9
NOTE:
Refer to the National Electrical Code, Article
680, for general requirements for swimming pools
and equipment, and to Article 440 for special consid-
erations necessary for circuits supplying hermetic
refrigeration motor/compressors.
WARNING:
This unit MUST be installed using flex-
ible conduit for supply wiring to the unit. This will
allow movement of the conduit whenever the junc-
tion box is removed for service - see instructions on
page 38.
This unit is pre-wired to work with external control sys-
tems, heat-on-demand options and other external time
clock overrides. Refer to the external control system’s
instructions, and page 29 of this manual, for installa-
tion information.
An earth ground lug is located to the right side of the
water connections.
Water Connections
1. Connect the heat pump pool heater in the return
water line between the filter and the pool/spa. See
the
Plumbing Diagrams
beginning on page 40.
2. Connect the filter outlet to the fitting marked
INLET/ENTREE
at the bottom front of the unit.
3. Connect the fitting marked
OUTLET/SORTIE
to
the return piping to the pool/spa. Unit inlet/outlet
connection fittings are 2-inch PVC unions.
CAUTION:
The heat pump pool heater inlet and
outlet connections are
NOT
interchangeable. They
must be connected as instructed below.
NOTE:
The earth ground lug may be relocated to
the left side of the water connections as needed dur-
ing unit installation.
WARNING:
Improper installation of any type of
automatic chemical feeders can result in serious
damage to, or premature failure of, the heat
pump pool heater and may void the heat pump
pool heater warranty.
Install a check valve and/or a
Hartford loop AFTER the heat pump pool heater and
BEFORE any chlorinating devices. Install any auto-
matic chemical feeders AFTER the heat pump pool
heater.
