Chapter 8 - External Wiring; General Requirements; Line Voltage Connections; Internal Circulator & Diverter Valve - TriangleTube PRESTIGE Excellence 110 Installation & Maintenance Manual

CHAPTER 8 - EXTERNAL WIRING

8.1.

General Requirements

All field wiring must comply with:
• National Electrical Code (ANSI/NFPA 70) for installa-
tions in the U.S., and any other national, state, pro-
vincial or local codes or requirements.
• Canadian Electrical Code Part 1 (CSA C22.1) for in-
stallations in Canada.
WARNING
ELECTRICAL SHOCK HAZARD. For your safety,
disconnect electrical power supply to the unit
before servicing or making any electrical con-
nections to avoid possible electric shock hazard.
Failure to do so can cause serious injury, or death.
NOTICE
The low voltage terminals are located at the
bottom of the ACVMax control module. The
line voltage terminals are located in the lower
right corner as shown in Fig. 17 below.
8.2.

Line Voltage Connections

1. Connect a dedicated 120 VAC/15A service to the
line voltage terminals located internally in the low-
er right corner, as shown in Fig. 17 below.
2. Route the incoming 120 VAC power wires through one
of the provided openings in the bottom jacket panel.
3. The unit is provided with a service switch located
on the front panel, check local code requirements
for compliance.

Fig. 17 - Terminal Strip Location

NOTICE
If local electrical codes require an additional service
switch, the installer must provide and install a fused
disconnect or minimum 15 amp service switch.
8.3. Internal Circulator & Diverter Valve
The PRESTIGE Excellence contains a prewired Boiler cir-
culator as well as a Diverter Valve.
The Boiler circulator is prewired to the line voltage ter-
minal strip as shown in Fig. 16 on page 30. The Boiler
circulator is enabled for any CH1, CH2, or DHW call. This
circulator is used to supply heat to the central / space
heating loop as well as the internal Indirect Water Heater.
The Diverter Valve will direct water flow to the CH Sup-
ply Connection at the bottom of the boiler during a
CH1 or CH2 call or to the internal Indirect Water Heater
during a DHW call.
8.4.

Circulator Wiring

1. The circulator connections used will depend on
the systems piping layout. See Fig. 8 on page 18
through Fig. 11 on page 21 for common system
piping applications and associated circulator wir-
ing. Consult the PRESTIGE ACVMax Control Supple-
ment for additional options.
NOTICE
The circulator, flame, and alarm outputs are pro-
tected by fuses on the ACVMax control module.
The total combined amp draw of the CH, DHW,
and Flame outputs must not exceed 4 amps at
any time. The total combined amp draw of the P3,
P4, and Alarm outputs must not exceed 5 amps at
any time. Use an isolation relay to lower the total
combined amp draw if exceeding this limits.
2. The internal circulator is prewired to the CH circula-
tor output. An additional circulator cannot be wired
to these line voltage terminals located internally in
the lower right corner, as shown in Fig.17on the left.
3. Connect the DHW circulator wiring to the line volt-
age terminals located internally in the lower right
corner, as shown in Fig.17 on the left. This circula-
tor is typically used as the system loop circulator in
a zone valve system.
4. Connect the P3 circulator wiring to the line voltage
terminals located internally in the lower right cor-
ner, as shown in Fig.17 on the left. This circulator
is typically used as a dedicated circulator to the first
space heating zone.
5. Connect the P4 circulator wiring to the line voltage
terminals located internally in the lower right corner, as
shown in Fig.17 on the left. This circulator is typically
used as a dedicated circulator to a second space heat-
ing zone.
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