ENERGY KINETICS System 2000 User's Information Manual

Gas Heat - Ninth Edition, September, 2018 5
4. HEAT: Once the boiler water has heated up to 150
o
F (about 90 seconds), the Manager will turn on the zone
output light on the right side. The zone valve will open and hot water will flow to the zone needing heat. The
burner runs as long as there is a thermostat calling and as long as heat is being delivered to the zone. The
burner may shut off if the return temperature exceeds 170
o
F/190
o
F (RED burner light turns off) or if the high limit
temperature is exceeded (RED burner light stays on, but the high limit aquastat shuts the burner off).
5. ANOTHER CALL FOR HEAT: If another zone calls for heat while the burner is already running and the return
temperature is above 150
o
F, the zone output will turn on, immediately supplying heat to the zone.
6. MONITOR RETURN TEMPERATURE: The Manager continually senses the return temperature and will turn off
the zone outputs if the return temperature drops below 130
o
F. With the zone outputs closed, the boiler water will
quickly reheat and once the return temperature reaches 150
o
F, then the Manager will reopen the zone valves.
7. THERMOSTAT (or Aquastat) SATISFIED: The thermostat light on the left side will go out. The burner light and
the burner will then turn off.
8. ENERGY RECOVERY: The circulator and zone valve remain energized. The circulating water will remove the
energy from the converter, sending the heat to the last zone(s) that called. The energy recovery stage continues
until the return temperature has dropped sufficiently or until maximum timing has been reached. The boiler is now
sitting cold, waiting for the next call for heat. Maximum timing for heat recovery stage is usually set at twenty
minutes for space heating zones and is fixed at five minutes for Zone HW.
BLOCKED VENT SHUTOFF SYSTEM
The SYSTEM 2000 boiler is equipped with a blocked vent shutoff system. The blocked vent shutoff system consists
of an air pressure switch mounted on the front of the boiler piped into the combustion chamber of the boiler. Under
normal operating conditions, the combustion chamber will be under negative pressure relative to the room. If the
combustion chamber pressure goes positive for more than a few seconds, then the pressure switch will interrupt the
electrical supply to the gas valve, causing the gas burner to turn off.
Certain conditions can cause positive pressure in the combustion chamber of the boiler.
 Excessively windy conditions. If there are gusty winds that cause a down draft on the chimney for more than
a few seconds, then the pressure switch may turn off the gas burner.
 Blocked chimney. For installations with a chimney, any kind of blockage of the chimney will cause the
pressure switch to turn off the gas burner. Blockages could include such things as birds nests, squirrel nests,
broken chimney cap, or collapsed chimney sections.
 Need for cleaning. If the boiler passages have accumulated solid combustion products, then the combustion
chamber pressure will become positive and the pressure switch will turn off the burner.
There are three possible outcomes if the pressure switch opens due to positive pressure.
 The burner is already off, in which case the pressure switch will close after the positive pressure is relieved
and no action is needed.
 The burner is running and opening of the pressure switch shuts off the gas valve, which shuts off the flame.
The burner control detects the loss of the flame and attempts to restart the burner after a one minute delay. If
the positive pressure condition was temporary, such as a gusty wind, then the burner will automatically restart
and no action is needed.
 The burner is off and tries to start while the pressure switch is open due to positive pressure in the
combustion chamber or the pressure switch opens during pre-purge. The burner control will detect that no
flame was established during the Trial For Ignition period (due to the gas valve being closed) and the burner
control will go into the ‘lock out’ condition. The burner control will turn on the red LED on the control
constantly and the green LED will be out.
o Push in and hold the reset button for one second to reset the burner control from lock out.
o The burner will then try to relight. If the burner relights successfully, then no further action is needed.
o If the burner goes into lock out again, then press reset again. A maximum of three reset attempts are
allowed during a single call for heat. After three resets from lock out without being able to establish
flame, the burner control will ‘latch up’ and will not allow any further attempts to start the burner.
 If normal operation cannot be established within three resets, then do not make further attempts to put the
boiler back into operation.
 If the burner still won’t light, contact a qualified service agency for help.

ENERGY KINETICS System 2000 Specifications

General

Brand	ENERGY KINETICS
Model	System 2000
Category	Boiler
Language	English