Install Instructions

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CHAPTER 8
CHAPTER 8 - EXTERNAL WIRING
8.5. Flame Status & Alarm Wiring
The Flame and Alarm outputs both supply
110VAC when activated. Use an isolation relay
to provide dry contacts if required by the exter-
nal monitoring system.
The Flame output is typically used to provide on/o sta-
tus to an external monitoring system. The Flame output
will provide 0VAC when the PRESTIGE Excellence is not
red and 110VAC when the PRESTIGE Excellence is red.
The Alarm output is typically used to provide lockout
status to an external monitoring system. The Alarm out-
put will provide 0VAC when the PRESTIGE Excellence is
not in a lockout and 110VAC when the PRESTIGE Excel-
lence is in a lockout. The types of lockouts which will
cause the Alarm output to activate are adjustable in the
Installer Menu. Consult the CTRLMax Control Supple-
ment for information on this setting.
1. Connect the external monitoring device to the line
voltage terminals located internally in the lower
right corner, as shown in Fig. 17 on page 31.
The circulator, flame, and alarm outputs are pro-
tected by fuses on the CTRLMax 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 these limits..
8.6. Low Voltage Connections
Line and Low Voltage wiring should be separated to pre-
vent possible electrical noise on the low voltage circuits.
Line and Low Voltage wiring should use separate electri-
cal knockouts on the PRESTIGE Excellence cabinet and
should remain separated inside the PRESTIGE Excellence.
CH call connections to the PRESTIGE Ex-
cellence require a dry contact with no external
voltage present. Ensure no external voltage is
present on each set of wires before connecting
to the PRESTIGE Excellence. If external voltage is
present, the use of an isolation relay is required
to prevent damage to the CTRLMax controller.
NOTICE
NOTICE
NOTICE
8.7. Thermostat Wiring
The CTRLMax control has two thermostat call inputs for
multiple zone / temperature systems. This allows each
call to have its own outdoor reset curve and maximizes
the eciency of the system.
Simultaneous CH1 and CH2 calls will result
in the PRESTIGE Excellence operating at the high-
est target temperature. The use of a mixing de-
vice on the lower temperature zone(s) may be re-
quired to protect the lower temperature zone(s)
from damage. The CTRLMax control includes a
mixing valve function which can operate a mix-
ing valve in a dual temperature system. Consult
the CTRLMax Control Supplement for additional
information on this function.
1. Connect the room thermostat or dry contact zone
valve end switch wires to low voltage terminals X6-
3&4 or X5-5&6 located at the bottom of the CTRL-
Max control module as shown in Fig. 19 above.
2. Follow thermostat manufacturer’s instructions for
proper installation. Thermostat should be located
on an inside wall away from any heat or cold inu-
ences such as drafts, lights, replaces, etc.
3. Set the thermostat anticipator (If applicable) as follows:
• Set for 0.2 amps when wired directly to the
PRESTIGE Excellence.
• Set to match the electrical power requirements
of the connected device when wired to zone
relays or other devices. Refer to the relay man-
ufacturer’s specications and the thermostat
instructions for additional information on antic-
ipator setting.
NOTICE
External Limit
Terminals
Low Voltage
Terminals
Fig. 18 - Low Voltage Connections