Terminal Strip Connection Options - Lochinvar GAS HEATER FOR COMMERICAL POOL Installation And Service Manual

Installation and Service Manual
Figure 39 - Control Panel Component Location Drawing
TABLE-M
Remote Wire Connection
Wire
Gauge
12 GA
14 GA
16 GA
18 GA
TABLE–N

Terminal Strip Connection Options

The scenarios shown in Figures 40 A - C represent typical
terminal strip connection requirements. The terminal strips are
located on the left side of the pool heater under the electrical
access panel. Other applications may be accommodated, but
must be addressed individually.
Figure 40-A shows the position of the jumpers as shipped from
the factory for stand-alone operation of the pool heater.
Figure 40-B shows connections to the terminal strip for
Remote ON/OFF control of the pool heater. The 1C-1NO
jumper must be removed when making these wiring
connections. This remote ON/OFF control will provide an
Enable/Disable signal to the pool heater and allow the pool
heater to operate based on the set point, until the remote
ON/OFF signal is cancelled. If the remote ON/OFF control is
Maximum
Allowable Length
100 ft
75 ft
50 ft
30 ft
also an external pool temperature control, adjust the pool
heater's pool return set point a few degrees higher than the
external pool temperature control's set point. The pool heater
temperature control will then act as a backup to the external
pool temperature control.
Figure 40-C shows the Continuous and Intermittent terminals.
External safety devices connected to these terminals will
function to protect the pool heater. Devices connected to the
Intermittent terminals (B1 and B2) are monitored only when
there is an active Call for Heat. Devices connected to the
Continuous terminals (A1 and A2) are monitored continuously
and will activate and alarm (if the pool heater is equipped with
the alarm option) anytime the safety device senses an
abnormal condition. An additional wire may be field installed
from these safety devices to terminals A3 or B3 (as
appropriate) to activate an audible alarm (if the pool heater is
equipped with the alarm option).
A.
37