Owner manual

4
Environmental Ratings
◦ Operating Temperature Range: -40°F
to +175°F (-40°C to +79.4°C).
◦ Relative Humidity Operating Range 5%
- 95% (non-condensing).
Not intended for outdoor use unless
mounted in appropriate enclosure.
Approvals
ETL listed per ANSI Z21.20 and CSA
C22.2#199
Lockout Sequence Options
◦ Sequence is usually factory selected
◦ Lockout after single try for ignition
◦ Lockout with retrial every 1-8 hours
◦ Lockout after 3 trials for ignition
◦ Manual Reset logic: shutdown after
failure to light during trial for ignition
timing or after ame failure, (no relight
attempt), after 5 minute minimum
waiting time, 1 retry attempt allowed,
then non-volatile lockout. Lockout
must be manually reset.
Timings
◦ All timings can be factory locked.
Timings below may be eld selectable
on some models.
◦ Ignition Timing: 4-15 seconds (4
seconds if Manual Reset)
◦ Pre-purge timing: 1-240 seconds
◦ Inter-purge timing: 90-300 seconds
Control Cycling Rate
The 7590 is designed for use in typical
heating applications which cycle a
few times per hour during the heating
season. More rapid cycling of the control
will shorten the useful life of the control.
Controls in rapid cycling applications
should be checked monthly for proper
operation. All controls should be checked
at least annually for proper operation.
Specications
Electrical Ratings
◦ Voltage: 120 volts 50/60 Hz (igniter,
motor) 24 volts (18-30 Vac) 50/60Hz
(gas valve and air proving switch)
◦ Current Draw (run): 0.2 Amps (control
only)
◦ Main Valve Rating: 2.0 Amps
◦ Motor Relay Rating: 7.4 Amps (120V)
◦ Igniter Relay Rating: 1.0 Amp (120V)
◦ Minimum Flame Current Required:
1.0 µA
◦ Flame Failure Response Time: 0.8
Seconds (Max.)
◦ Control is not polarity sensitive
◦ Heat Anticipator Setting: 0.2 amp + gas
valve current draw
Electrical Connections
◦ Two T-T screw terminals (on top) (see
Figure 1)
◦ 1/4” Quick Connects (6 total on bottom)
─ Igniter, L2
─ Motor, L2
─ L1, L2
◦ 3/16” Remote Sense quick connect
terminal (on bottom)
◦ 6-Pin (24V) connector (on bottom)
24 Volt Input, Gas Valve, Burner
Ground
◦ 2-Pin (24 V) connector (on bottom)
Air Pressure Switch
◦ Micro-USB Communications Port (on
side of control) for diagnostic tool and
alarm module (COM1).
◦ Additional Features
◦ 3 Diagnostic LEDs; Status (red), Flame
(yellow), MV (green)
◦ Alarm Contacts (optional module)