Install Instructions

33
8.0 External Wiring
secondary CH loop when zoning with zone
valves or as a dedicated circulator to a
space heating zone.
5. Connect the P4 circulator to the line voltage
terminal on the terminal block, Fig. 20 on
page 31, located internally in the lower right
corner, as shown in Fig. 21 on page 32. This
circulator is typically used as a dedicated
circulator to a second space heating zone.
8.4 Alarm Wiring
The alarm contact closes whenever the
Prestige is in a soft or hard lockout. This
dry contact can be connected to an external
monitoring system or other indicator to alert
the operator that the Prestige is locked out.
1. Connect the external monitoring device to
the line voltage terminal on the terminal
block, Fig. 20 on page 31, located internally
in the lower right corner, as shown in Fig. 21
on page 32.
The alarm contact is fused with a common
5A fuse located on the main control board.
The total combined amp draw of the circu-
lators, alarm, and flame terminals must not
exceed 5 amps at any time. Use an isolation
relay to lower the total combined amp draw
if exceeding this limits.
8.5 Low Voltage Connections
Line and Low Voltage wiring should be
separated to prevent possible electrical
noise on the low voltage circuits. Line
and Low Voltage wiring should use sepa-
rate electrical knockouts on the PRES-
TIGE cabinet and should remain sepa-
rated inside the PRESTIGE.
CH and DHW call connections to the
PRESTIGE require a dry contact with no
external voltage present. Ensure no exter-
nal voltage is present on each set of wires
before connecting to the PRESTIGE. If
external voltage is present, the use of an
isolation relay is required to prevent dam-
age to the ACVMax controller.
8.6 Thermostat Wiring
The ACVMax 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 efficiency of the system.
Simultaneous CH1 and CH2 calls will
result in the PRESTIGE operating at the
highest target temperature. The use of a
mixing device on the lower temperature
zones such as the ACV-Triangle Tube
Optima Series SMV Control may be
required to protect the lower tempera-
ture zones from damage.
1. Connect the room thermostat or dry contact
end switch to the low voltage terminal strip
located on the bottom of the main control
board as shown in Fig. 19 on page 31 & Fig
22.
NOTICE
NOTICE
NOTICE
WARNING
Reset Limit
Terminals
Low Voltage
Terminals
Figure 22: Low Voltage Connections