Digital Manager Sensor Testing; Line Voltage Relays; Surge Suppression - ENERGY KINETICS System 2000 EK1 Frontier Owners And Installation Manual

 If resistance is greater than 3 ohms after 3 seconds of operation, B1-B2 contact is bad. Solution: Replace
manager. Note: For 140F light flashing with a good B1-B2 manager relay (step 3 above), see "Trouble
Shooting with the Digital Manager".

Digital Manager Sensor Testing

The temperature sensor in the return line allows better boiler control, and virtually eliminates condensation
caused by cold returns.
The temperature sensor is a mini computer chip sealed with epoxy inside a copper well. The chip
communicates continuously with the Manager thousands of times a minute.
The Digital Manager is the tester of the digital temperature sensor. It verifies that it is connected and working
properly.
 The sensor cannot be tested with an ohm meter/volt meter or other device. Doing so could cause it to fail!
 The sensor operates on 5 volts DC. Never connect 24 volts to the black, silver or red sensor terminals
(labeled B, S, or R.)
 A caution: T4 thermostat input is adjacent to R, the red sensor terminal. When making thermostat
connections, never do so with power on.
 Once firm proper connections have been made, power up.
 We believe many sensors and Managers have been damaged by 24V being jumped or connected to B, S, or R.
Look carefully while making any connections to the Manager.
WARNING: Do Not Jump!
If you apply 24V to any digital sensor lead with the sensor connected to the Manager, you will burn out the sensor,
the Manager or both in less than a second.
To test the functioning of each output zone, never apply a jumper to the Digital Manager output terminals.
The easiest way to test each zone output is to remove the red sensor lead. The Manager should go into Service
Board mode for 10 minutes, followed by Classic Manager mode. Adjust each thermostat to call for heat and the
corresponding zone should come on if working properly.
Rule #1: Never use a jumper to test the function of the Digital Manager.
Rule #2: Never use a jumper to test the function of the Digital Sensor.
Rule #3: Never use a jumper to test the zones outputs.
Rule #4: Only use a jumper from A1 to the thermostat inputs, if you can't reach the thermostats.
Rule #5: Always carry a Service Board with you.

Line Voltage Relays

Remember that behind the Manager is the junction box with the line voltage relays. The line voltage relays are
controlled by the Manager.
The burner and circulator power is controlled by one line voltage relay. If both burner and circulator are without power,
check the relay.
If the domestic hot water circulator does not have power, check the hot water relay.
If equipped with an inducer and the inducer does not have power, check the inducer relay. Also check to be sure dip
switch #2 is turned "on".
Line Voltage
System 2000 requires 120 VAC. The supply voltage must be within 108 VAC min / 132 VAC max for reliable
operation of the boiler and the Manager. An easy way to check the supply voltage is to plug a volt meter in at the service
outlet located on the system junction box.

Surge Suppression

The Relay Board located in the system junction box is equipped with built-in surge suppression on the 120VAC circuit.
Older systems can be retrofitted using a plug-in surge suppressor.
Oil Heat – Eighteenth Edition – June 2015
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