Instinct Installation Manual

CHAPTER 8 - WIRING
40
WARNING
8.2. External Wiring
8.2.1 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.
ELECTRICAL SHOCK HAZARD. For your safety,
disconnect electrical power supply to the unit before
servicing or making any electrical connections to
avoid possible electric shock hazard. Failure to do so
can causeserious injury, ordeath.
NOTICE
The low voltage terminals are located at the bottom
of the CTRLMax control module. The line voltage
terminals are located in the lower left corner as
sho wn in F ig .30 on the right .
8.2.2 Line Voltage Connections
1. Connect a dedicated 120 VAC/15A service to the
line voltage terminals located internally in the low-
er left corner, as shown in Fig. 24 below.
2. Route the incoming 120 VAC power wires through one
of the provided openings in the bottom jacket panel.
NOTICE
If local electrical codes require an additional service
switch, the installer must provide and install a fused
disconnect or minimum 15 amp serviceswitch.
8.3. External Wiring - INSTINCT Solo Units
8.3.1 Circulator Wiring
1. The circulator connections used will depend on the
systems piping layout. See Fig. 16 on page 32
through Fig. 11 on page 21 for common system
piping applications and associated circulator
wir ing . C onsult the F ig . 10 on page 20 and
the INSTINCT CTRLMax Control Supplement for
additional options.
NOTICE
The circulator output is protected by fuses on the
CTRLMax control module. The total combined amp
draw of the CH1, CH2, DHW, Boiler outputs must not
exceed 4 amps at any time for the INSTINCT 110 and
155 units, or 3 amps at any time for the INSTINCT
199 units. Use an isolation relay to lower the total
combined amp draw if exceeding this limits.
2. Connect the CH1 & CH2 circulator wiring to the
respective line voltage terminals located internally in
the
lo w er lef t cor ner , as shown in F ig . 24 on the left . T his
circulator is typically used to supply heat to the central/
space heating loop .
3. Connect the DHW circulator wiring to the line
voltage terminals located internally in the lower left
cor ner , as shown in F ig . 24 on the left . T his cir culat or
is typically used to supply heat to an indirect hot
water heater.
4. Connect the boiler system pump wiring to the line
voltage terminals located internally in the lower left
cor ner , as shown in F ig . 24 on the left .
Fig. 24 - Terminal Strip Location
2.5A Fuse
CHAPTER 8