10
Swimming Pool Hot Tub Applications
• Load coax material should always be cupro-nickel in
chlorine/bromine fluid applications (sizes 036-120).
• Load heat exchanger should be isolated with secondary
heat exchanger constructed of anti-corrosion material in
all chlorine/bromine fluid applications (size 360).
Potable Water Applications
• Load coax material should always be vented double
walled for use in potable water systems (sizes 036-120).
• Ensure load water flow in high temperature heating
applications is at least 3 gpm per ton to improve perfor-
mance and reduce nuisance high pressure faults.
Step 6 — Electrical Wiring
All field-installed wiring, including the electrical ground,
MUST comply with the National Electrical Code (NEC) as
well as applicable local codes. In addition, all field wiring must
conform to the Class II temperature limitations described in the
NEC.
Refer to unit wiring diagrams Fig. 6A-6I for fuse sizes and a
schematic of the field connections which must be made by the
installing (or electrical) contractor.
Consult the unit wiring diagram located on the inside of the
compressor access panel to ensure proper electrical hookup.
The installing (or electrical) contractor must make the field
connections when using field-supplied disconnect.
Operating voltage must be the same voltage and phase as
shown in Electrical Data shown in Table 3.
Make all final electrical connections with a length of flexi-
ble conduit to minimize vibration and sound transmission to
the building.
POWER CONNECTION — For sizes 036-120, line voltage
connection is made by connecting the incoming line voltage
wires to the L side of the CC terminal. See Table 3 for correct
wire and maximum overcurrent protection sizing.
For size 360, line voltage connection is made by connecting
the incoming line voltage wires to L1, L2, and L3 on the power
distribution block. See Table 3 for correct fuse size.
To avoid possible injury or death due to electrical shock,
open the power supply disconnect switch and secure it in
an open position during installation. Install lockout tag.
Use only copper conductors for field-installed electrical
wiring. Unit terminals are not designed to accept other
types of conductors.
External
Field-Installed
Pump
Fig. 5 — Typical Hot Water Generator Installation
