Tekmar 423 Universal Reset Module Manual de usuario descargar pdf (Pagina 16)

© 2007 D 423 - 08/07 16 of 36

Testing the Control

Te st

Press and Hold

for 1 second

The control has a built-in test routine that tests the main

control functions. The control continually monitors the

sensors and displays an error message whenever a fault

is found. The individual outputs and relays are tested using

a test sequence.

Test Sequence

Each step in the test sequence lasts 10 seconds.

•

• Start the test sequence by pressing the Test button.

•

• Pause the test sequence by pressing the Test button

again. To advance to the next step, press the Test

button again.

•

• If the test sequence is paused for more than five minutes,

the control exits the entire test routine.

•

• To advance to a particular step, repeatedly press and

release the Test button to display the appropriate

device.

HAZARD

Access to the Test button requires the removal of the

front cover and exposes hazardous voltage while the

control is powered. Only trained, qualified and competent

personnel should operate the Test button.

IF Bus 1 is set to M1 (Mix 1):

Step 1 The Mix 1 device ramps up to 100% over

10 seconds or according to the motor speed

setting.

Step 2 The Mix 1 device ramps down to 0% over

10 seconds or according to the motor speed

setting.

Step 3 The Mixing 1 pump turns on for 10 seconds

then shuts off.

IF Bus 2 is set to M2 (Mix 2):

Step 4 The Mix 2 device ramps up to 100% over

10 seconds or according to the motor speed

setting.

Step 5 The Mix 2 device ramps down to 0% over

10 seconds or according to the motor speed

setting.

Step 6 The Mixing 2 pump on the Mixing Module

turns on for 10 seconds then shuts off.

IF Bus 3 is set to M3 (Mix 3):

Step 7 The Mix 3 device ramps up to 100% over

10 seconds or according to the motor speed

setting.

Step 8 The Mix 3 device ramps down to 0% over

10 seconds or according to the motor speed

setting.

Step 9 The Mixing 3 pump on the Mixing Module

turns on for 10 seconds then shuts off.

Step 10 The primary pump turns on and remains on for

the rest of the test sequence.

IF Boil 1 is set to Au (Auto):

Step 11 The Stage 1 contact is closed to fire an on-off

boiler for 10 seconds or enable a modulating

boiler.

IF the On-Off / Modulating DIP switch is set to

Modulating or the tekmar Stager / Off DIP switch is

set to tekmar Stager:

Step 12 The Mod 1 output ramps up to 100%.

Step 13 The Mod 1 output ramps down to 0%.

The Stage 1 contact is opened and the boiler

is shut off.

IF Boil 2 is set to Au (Auto):

Step 14 The Stage 2 contact is closed to fire an on-off

boiler for 10 seconds or enable a modulating

boiler.

IF the On-Off / Modulating DIP switch is set to

Modulating:

Step 15 The Mod 2 output ramps up to 100%.

Step 16 The Mod 2 output ramps down to 0%.

The Stage 2 contact is opened and the boiler

is shut off.

Step 17 If DHW MODE is set to 1 or 2, the primary

pump is shut off and the DHW Pump contact

is closed.

If DHW MODE is set to 3 or 4, the primary

pump stays on and the DHW Pump contact is

closed.

The control exits the test sequence.

If a device fails to operate during the test sequence, refer

to the W 423 Wiring Brochure to check the operation

of the control. If the control works properly, refer to any

troubleshooting information supplied by the equipment

manufacturer.

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