Service manual

VANTAGE
®
EV INSTALLATION MANUAL ROBERTS-GORDONpg 28
Section 11. Wiring
VANTAGE
®
EV systems may employ a solid-state
Electronic Control Panel. In addition to providing system
management, the control panel can also be used to
provide individual zone temperature control for up to four
zones.
The control panel is required on large systems (as
defined by electrical requirements) and is optional on
small systems. Small systems can use a thermostat and
relay to provide zone temperature control for up to two
different areas. Refer to the layout and specification
drawings for your application to determine what method
of control has been indicated by the system designer.
Control Methods
There are three different ways to control an EV system:
1. ELECTRONIC CONTROL PANEL (P/N 02770001)
With a single 20 amp 120V supply, the Electronic
Control Panel can operate the vacuum pump and up
to (6) burners within a system with up to (4)
temperature zones. The Electronic Control Panel is
required for use with the SmartSet
™
Energy
Management System (Figure 29 & 30).
2. SPST TRANSFORMER RELAY (P/N 90417600)
With single 20 amp, 120V supply can operate the
vacuum pump and up to 9 burners in a system with
only one zone (Figure 31).
3. DPST TRANSFORMER RELAY (P/N 90436300)
With single 20 amp, 120V supply can operate the
vacuum pump and up to 9 burners in a system with
up to two zones (Figure 32).
Critical Considerations
DO NOT USE THERMOSTATS THAT DRAW POWER
FROM THE SYSTEM.
Low voltage or pilot duty thermostats should be used.
Thermostats that require a power supply of 24V to
operate must not be used because control voltage
available on the circuit board is only 12 VDC.
When using an outside air blower, the Electronic Control
Panel and a separate Load Relay Package
(P/N 05023000) are required. Wire the Electronic Control
Panel for the relay in parallel with the vacuum pump. The
outside air blower must have a separate 20A, 120V power
supply.
SmartSet
™
Energy Management System
Systems requiring “Night Setback” and other
features, need the SmartSet
™
Energy Management
System (P/N 02770101).
SmartSet
™
is a microprocessor-based control system that
interfaces directly to the Electronic Control Panel. It
provides the user with a convenient touch-pad and digital
readout for system programming.
The system features comprehensive control of multiple
Setback periods and Holiday Setback for individual
zones. The system can also automatically compensate for
Daylight Savings Time.
If equipped, install SmartSet
™
according to “SmartSet
™
Installation, Operation and Service Instructions” (P/N
127101US, included with the SmartSet
™
package).
Electrical Shock Hazard
Vacuum Pump and Heater must be installed
and grounded according to national codes.
Failure to follow these instructions will
result in death or electrical shock.
WARNING
The control panel, burner, vacuum pump and outside air
blower if used, must be electrically grounded in
accordance with the following codes: United States: Refer
to National Electrical Code, ANSI/NFPA-70 - latest
revision. Wiring must conform to the most current
National Electrical Code, local ordinances, and any
special diagrams furnished. Canada: Refer to National
Electrical Code, CSA C22.1 Part 1 - latest revision.
WARNING
Electrical Shock Hazard
Disconnect electrical power before servicing.
Failure to follow these instructions will result in death or electrical shock.