Troubleshooting – tekmar 363 Universal Reset Control Installation User Manual

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Step 4

- The mixing pump

(Mix P2) is turned on for 10 seconds and then shuts off.

NOTE: Only if there is a mixing demand can the control be paused in step 4.

Step 5

- The boiler pump

(Pump P1) is turned on and remains on.

NOTE: Only if there is a boiler demand can the control be paused in step 5.

Step 6

- The

Boiler contact is turned on for 10 seconds. After 10 seconds, the Boiler and Boil P1 contacts are shut off.

NOTE: Only if there is a boiler demand can the control be paused in step 6.

Step 7

- If PUMP is selected in the DHW THRU item, the

DHW Pmp/Vlv contact is closed for 10 seconds. If VALV is

selected in the DHW THRU item, the

DHW Pmp/Vlv and Boil P1 contacts are closed for 10 seconds. If NONE

is selected in the DHW THRU item, N/A is displayed in the LCD for 1 second.

NOTE: Only if there is a DHW demand can the control be paused in step 7.

Step 8

- After the test sequence is completed, the word COMPLETE is displayed for 1 second and the control resumes its

normal operation.

MAX HEAT (MAX HEAT)

The Universal Reset Control 363 has a function called

Max Heat. In this mode, the 363 turns on and operates the system up to the

maximum set temperatures, and the mixing device at the set percentage, as long as there is a demand for heat. The control continues
to operate in this mode for up to 24 hours or until either the Item, Menu or Test button is pressed. This mode may be used for running
all circulators during system start-up in order to purge air from the piping. To enable the Max Heat feature, use the following procedure.

1) Press and hold the Test button for more than 3 seconds. At this point, the control displays

the words MAX HEAT and the word NO.

2) Using the Up or Down buttons, select the word YES. After 3 seconds, the control flashes

the word MANUAL and the number 100. This number represents the desired output from
the mixing device.

3) Set the desired output of the mixing device by using the Up and / or Down buttons on

the control.

4) To cancel the

Max Heat mode, press either the Item, Menu, or Test button.

5) Once the

Max Heat mode has either ended or is cancelled, the control resumes

normal operation.

Troubleshooting

When troubleshooting any heating system, it is always a good idea to establish a set routine to follow. By following a consistent routine,
many hours of potential headaches can be avoided. Below is an example of a sequence that can be used when diagnosing or
troubleshooting problems in a hydronic heating system.

Establish the problem. Get as much information from the customer as possible about the problem.
Is there too much heat, not enough heat, or no heat? Is the problem only in one particular zone or
area of the building or does the problem affect the entire system? Is this a consistent problem or only
intermittent? How long has the problem existed for? This information is critical in correctly diagnosing
the problem.

Understand the sequence of operation of the system. If a particular zone is not receiving enough
heat, which pumps or valves in the system must operate in order to deliver heat to the affected zone?
If the zone is receiving too much heat, which pumps, valves or check valves must operate in order
to stop the delivery of heat?

Press the Test button on the control and follow the control through the test sequence as described
in the Testing section. Pause the control as necessary to ensure that the correct device is operating
as it should.

Troubleshooting

Menu Item

Establish the

Problem

Understand the

Sequence of

Operation

Use the Test

Routine