Service manual

ROBERTS GORDON
®
NRG CONTROL INSTALLATION, OPERATION AND SERVICE MANUAL
4 of 40
SECTION 2: SPECIFICATIONS
Figure 1: Keypad Layout
2.1 Material
2.1.1 Enclosure
Enclosure Material: ABS fire retardant
Weight: 1.6 kg
Dimensions: 158 mm x 62 mm x 220 mm
2.1.2 Electrical
Supply: 230 V ± 10% 50 Hz 1 Ø
Outputs: 3 single pole normally open
Rated at 10 A resistive or
7 A inductive.
Battery Back Up: 3 Months.
Built in Fuses
Main Fuse: FS1 800 mA anti-surge
PCB Protection: FS2 315 mA quick blow
12 V Output: FS3 315 mA quick blow
2.1.3 Sensors
Sensor: Built in as standard
Remote available as option
Remote Sensor:
Warm Air & Radiant 80 mm x 80 mm x 22 mm
Black Bulb Radiant 68 mm diameter x 50 mm
Sports Hall Sensor Flush Mounting
2.1.4 Program Features
Zones: One
Programs: 3 timed periods per day,
7 days per week.
Optimum Start: Selectable
Night Set Back: Selectable
Burner Modulation: Selectable (0-10 V DC output.
0 V=low fire)
Two Stage Burner Selectable
Burner Lockout:
Indication & Reset: Available for use with suitable
heater types
Pressure Switch: Connections for fan proving
for CORAYVAC
®
systems
Network: Up to 32 units may be
connected together on a
network using Belden 8451
shielded cable
2.2 Keypad Layout
1. LCD Readout
2. Run button and fan button, returns to standard
screen from programming options, manual
operation of fan on warm air heaters.
3. Program button and copy button used to enter
program options areas and copy time program.
4. Override button and summer button, used to
allow operating time to be extended and set
control in summer mode.
5. Information button and reset button shows
current setting and status plus burner lockout
reset.
6. Built in temperature sensor.
7. Delete button cancels input during
programming (move forward around network).
8. Numerical key pad for inputting information.