Electrical Connections - Lochinvar EnergyRite ER152 Installation & Operation Manual

8

Electrical connections

This appliance is wired for 240 VAC service. The pool heater can
be converted to 120 VAC by moving the jumper connector from
the connector labeled 240 VAC to the connector labeled
120 VAC as shown in FIG. 8-1. The jumper connector is located
inside the appliance on the left-hand side. The unit, when
installed, must be electrically grounded and bonded in
accordance with the requirements of the local codes or in the
absence of local codes, with the latest edition of the National
Electrical Code ANSI/NPA No. 70. When the unit is installed in
Canada, it must conform to the CSA-C22.2, No. 3, Electric
Features of Fuel Burning Equipment and/or local electrical
codes.
1. The electrical power circuit to this pool heater shall be
installed with a ground fault circuit interrupter. Local
codes shall govern the installation of this device.
2. All wiring between the unit and field installed devices shall
be made with type T wire [63°F (35°C) rise].
3. Line voltage wire exterior to the appliance must be
enclosed in approved conduit or approved metal clad
cable.
4. The filter pump must run continuously when the pool
heater is being fired.
5. To avoid serious damage, DO NOT energize or operate
the pool heater until the pool, filter system, and related
piping is properly filled with water.
may result.
6. Provide the pool
protection.
Figure 8-1_Voltage Jumper - 240 VAC to 120 VAC
TABLE - 8A
AMP DRAW DATA
Model
120 VAC
ER152
ER202
ER252
ER302
ER402
36
Serious damage
heater with proper overload
Approximate Total Amps
240 VAC
1.4 0.7
1.9 1.0
2.0 1.0
2.0 1.0
2.0 1.0
Installation & Operation Manual
Terminal strip for third party remote or
proving switch
2-Wire Remote:
A 2-wire remote system has its own thermostat which acts as the
primary thermostat. Connect the two wires per the remote
manufacturer's instruction manual to the R and Wp terminals
on the terminal strip. See the Setup Menu Descriptions -
Pool/Spa Remote section in the EnergyRite Service Manual for
remote configuration.
3-Wire Remote:
A 3-wire remote is one that utilizes the thermostat on the heater.
Connect the three wires per the remote manufacturer's
instruction manual to R, Wp, and Ws terminals on the terminal
strip. R = Common; Wp = Pool; Ws = Spa
Proving Switch:
Wire the external proving switch to the X and B terminals on the
terminal strip. External proving switches consist of louvers,
power vent kits, make-up fan interlock, etc.
Figure 8-2_Terminal Strip
Remove the brass jumper between the terminals to be used.
Reference Table 8B in this section to determine maximum
allowable wire length and gauge recommended to connect the
switching contacts of the remote thermostat or control to the
appropriate terminals on the terminal strip.
TABLE - 8B
WIRE GAUGE FOR REMOTE CONNECTION
Wire Gauge
12 GA
14 GA
16 GA
18 GA
Maximum Allowable Length
100 ft.
75 ft.
50 ft.
30 ft.