WATTS 423 ម៉ូឌុលកំណត់ឡើងវិញជាសកល

សេចក្តីផ្តើម

The Universal Reset Module 423 provides outdoor reset to a hydronic heating system in order to maximize comfort and efficiency. The 423 can operate two on / off boilers or two modulating boilers. The 423 can override the outdoor reset
water temperature to provide Domestic Hot Water or Setpoint operations. The 423 can operate four outdoor reset water temperatures, up to three of these water temperatures can be mixing water temperatures. To operate a mixing device, a Mixing Expansion Module must be connected to the 423 for each mixing water temperature.

លក្ខណៈ

• tN4 Compatible
• Four tN4 Buses
• Up to One Boiler and Three Mixing Water

សីតុណ្ហភាព

• Two On-Off or Modulating Boilers
• Equal Run Time Rotation
• Powered Pump Outputs
• ប្រតិបត្តិការ DHW
• Optional DHW Sensor
• ប្រតិបត្តិការកំណត់

Display and DIP Switches

Set the DIP switch settings prior to making adjustments to the control through the user interface. Setting the DIP switches determines which menu items are displayed in the user interface. If you change a DIP switch setting while the control is powered up, the LCD display returns to the View ម៉ឺនុយ។

ចាក់សោ / ដោះសោ
Use the Lock / Unlock DIP switch to lock and unlock the Access Level of the 423 and all connected tN4 devices, including tN4 thermostats. For details, see “Access Level”.

• Once locked, the access level in all devices cannot be viewed or changed.
• To determine if the control is currently locked a small segment representing a padlock is viewed in the bottom right hand corner of the display.
• To unlock the Access Level, set the DIP switch to Unlock.
• To lock the Access Level, set the DIP switch to Lock.

Boiler Sup / Ret
Use the Boiler Sensor Supply / Return DIP switch to select
the location of the boiler sensor.
• If the boiler sensor is located on the supply, this DIP
switch should be set to Sup. The 423 is the control that
determines the boiler water temperature. Set the boiler’s
aquastat at least 20°F (11.0°C) higher than the Boiler
Maximum setting.

• If the 423 provides a heat demand to an external boiler
control, this DIP switch must be set to Ret. Install the
boiler sensor on the return side of the boiler loop.
The boiler’s operating temperature is controlled by its
aquastat, or an external boiler reset control.

Boil On-Off / Mod
The Boil On-Off / Mod DIP switch selects whether the
control operates an On-Off boiler or the firing rate of a
Modulating boiler.

• If set to Boil On-Off, the control operates up to two
On-Off boilers.
• If set to Mod, the control operates up to two Modulating
ឡចំហាយ។
Off / tekmar Stager
Use the Off / tekmar Stager DIP switch when a tekmar
staging control is be connected to the 423 in order to operate
multiple boilers. A tekmar stager may include Boiler Controls
264, 265, និង 268។
• If a tekmar Stager is installed, set to tekmar Stagអេ នេះ។
423 will then provide the stager with a target temperature
via a 0-10 V (dc) signal. When the Off / tekmar Stager
DIP switch is set to tekmar Stager, the Boiler Sensor
DIP switch must be set to Sup.

• If a tekmar Stager is not installed, set to Off.
Off / DHW Sensor
Use the Off / DHW Sensor DIP switch when a tekmar
sensor is be connected to the 423 in order to operate a
DHW storage tank.
• If a tekmar sensor is installed for DHW, set to DHW
Sensor. When the Off / DHW Sensor DIP switch is set
to DHW Sensor, a regular DHW aquastat cannot be
បានប្រើ។

• If a tekmar sensor is not installed for DHW, set to Off.
Off / Rotation
Use the Off / Rotation DIP switch when the Equal Run
Time Rotation feature is to be used. This feature changes
the firing order of the boilers in order to maintain a similar
amount of running time on each boiler.
• If Equal Run Time Rotation is required, set the Off /
Rotation DIP switch to Rotation.
• If Equal Run Time Rotation is not required, set to Off.Access Level

Boiler Sup / Ret

Use the Boiler Sensor Supply / Return DIP switch to select
the location of the boiler sensor.
• If the boiler sensor is located on the supply, this DIP
switch should be set to Sup. The 423 is the control that
determines the boiler water temperature. Set the boiler’s
aquastat at least 20°F (11.0°C) higher than the Boiler
Maximum setting.

• If the 423 provides a heat demand to an external boiler
control, this DIP switch must be set to Ret. Install the
boiler sensor on the return side of the boiler loop.
The boiler’s operating temperature is controlled by its
aquastat, or an external boiler reset control.
Boil On-Off / Mod
The Boil On-Off / Mod DIP switch selects whether the
control operates an On-Off boiler or the firing rate of a
Modulating boiler.
• If set to Boil On-Off, the control operates up to two
On-Off boilers.
• If set to Mod, the control operates up to two Modulating
ឡចំហាយ។

Off / tekmar Stager
Use the Off / tekmar Stager DIP switch when a tekmar
staging control is be connected to the 423 in order to operate
multiple boilers. A tekmar stager may include Boiler Controls
264, 265, និង 268។

• If a tekmar Stager is installed, set to tekmar Stagអេ នេះ។
423 will then provide the stager with a target temperature
via a 0-10 V (dc) signal. When the Off / tekmar Stager
DIP switch is set to tekmar Stager, the Boiler Sensor
DIP switch must be set to Sup.
• If a tekmar Stager is not installed, set to Off.
Off / DHW Sensor
Use the Off / DHW Sensor DIP switch when a tekmar
sensor is be connected to the 423 in order to operate a
DHW storage tank.
• If a tekmar sensor is installed for DHW, set to DHW
Sensor. When the Off / DHW Sensor DIP switch is set
to DHW Sensor, a regular DHW aquastat cannot be
បានប្រើ។
• If a tekmar sensor is not installed for DHW, set to Off.
Off / Rotation
Use the Off / Rotation DIP switch when the Equal Run
Time Rotation feature is to be used. This feature changes
the firing order of the boilers in order to maintain a similar
amount of running time on each boiler.
• If Equal Run Time Rotation is required, set the Off /
Rotation DIP switch to Rotation.
• If Equal Run Time Rotation is not required, set to Off.
The Access Level restricts the number of Menus, Items,
and Adjustments that can be accessed by the user. The
Access Level setting is found in the Miscellaneous (MISC)
Menu. Select the appropriate access level for the people
who work with the control on a regular basis.
There are two Access Level settings:
• Installer (InS): This is the factory default setting. This
access level is sufficient for the normal set up of the
គ្រប់គ្រង។
• Advanced (Ad): All of the control settings are available
ដល់អ្នកប្រើប្រាស់។
In the following menu tables, the access level the item is
visible in is shown in the access column.User Interface
បន្ត
to next Item
ត្រឡប់ទៅ View ម៉ឺនុយ
បន្ត
to next Item
បន្ត
to next Item
Use the User Interface available on the Liquid Crystal Display
(LCD) to setup and monitor the operation of the system.
Use the four push buttons to the left of the LCD (Menu,
Item, Up, Down) to select settings. As you enter settings,
record the settings in the Job Record J 423.
ម៉ឺនុយ
The menus display in the Menu Field at the top left side
of the LCD. Three menus are available: View, Adjust, and
ផ្សេងៗ។
• To select a menu, press and release the Menu button.
ធាតុ
In each menu, a group of items can be selected. The
abbreviated name of the selected item displays in the Item
field of the LCD display.
• ទៅ view the next available item, press and release the
Item button.
• ទៅ view the previous item, hold down the Item button.
and press and release the Up button.
Adjusting a Setting
To adjust a setting
1. Select the appropriate menu using the Menu button.
2. Select the item using the Item button.
3. Use the Up or Down button to make the adjustment.
Default Item
• To set the default item in the View Menu, display the
item for more than five seconds.
After navigating menus, the display reverts back to the
default item after 60 seconds of button inactivityTesting the Control
Test Press and Hold
សម្រាប់ 1 វិនាទី
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.
លំដាប់សាកល្បង
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
ប៊ូតុងម្តងទៀត។
• 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
ឧបករណ៍។
គ្រោះថ្នាក់
Access to the Test button requires the removal of the
front cover and exposes hazardous voltagអ៊ីខណៈពេលដែល
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
ការកំណត់។
Step 2 The Mix 1 device ramps down to 0% over
10 seconds or according to the motor speed
ការកំណត់។
Step 3 The Mixing 1 pump turns on for 10 seconds
បន្ទាប់មកបិទ។
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
ការកំណត់។
Step 5 The Mix 2 device ramps down to 0% over
10 seconds or according to the motor speed
ការកំណត់។
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
ការកំណត់។
Step 8 The Mix 3 device ramps down to 0% over
10 seconds or according to the motor speed
ការកំណត់។
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
ឡចំហាយ។
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 រហូតដល់ 100% ។
Step 13 The Mod 1 output ramps down to 0%.
អេសtage 1 contact is opened and the boiler
ត្រូវបានបិទ។
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
ឡចំហាយ។
IF the On-Off / Modulating DIP switch is set to
ការកែប្រែ៖
Step 15 The Mod 2 output ramps រហូតដល់ 100% ។
Step 16 The Mod 2 output ramps down to 0%.
អេសtage 2 contact is opened and the boiler
ត្រូវបានបិទ។
Step 17 If DHW MODE is set to 1 or 2, the primary
pump is shut off and the DHW Pump contact
ត្រូវបានបិទ។
If DHW MODE is set to 3 or 4, the primary
pump stays on and the DHW Pump contact is
បិទ។
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
ក្រុមហ៊ុនផលិត។
17 of 36 © 2007 D 423 – 08/07
Test Press and Hold
សម្រាប់ 3 វិនាទី
Test Press and Hold
សម្រាប់ 6 វិនាទី
កំដៅអតិបរមា
The control has a function called Max Heat. In this mode,
the control turns on and operates the system up to the
maximum set temperatures as long as there is a demand
for heat. tN4 thermostats operate to meet the occupied
setting +5°F (3°C). The control operates in this mode for
up to 24 hours or until the Test button is pressed. Use this
mode to run the circulators during system start-up to purge
air from the piping.
• The Mix 1, Mix 2 and Mix 3 Maximum settings are available in the Adjust Menu when in Max Heat.
គ្រោះថ្នាក់
Access to the Test button requires the removal of the
front cover and exposes hazardous voltagអ៊ីខណៈពេលដែល
control is powered. Only trained, qualified and competent
personnel should operate the Test button.
To enable Max Heat:
Press and hold the Test button for more than 3 seconds
and less than 6 seconds.
If there is a demand for heat, the ‘TEST’ and ‘MAX’ segments
are displayed on screen and the control will turn on all
outputs for up to 24 hours.
If there is no demand for heat, the ‘TEST’ and ‘MAX’
segments are still displayed but no outputs are turned on
until there is a demand for heat present.
To Cancel Max Heat:
Press the Test button to cancel Max Heat manually or wait
24 hours and the control will automatically leave the Max
Heat mode.
Zone Test
In Zone Test mode, each tN4 device is individually turned
on one at a time. The control tests each zone for up to 5
minutes of no button activity. Use this feature to purge air
out of each zone and assist in troubleshooting.
គ្រោះថ្នាក់
Access to the Test button requires the removal of the
front cover and exposes hazardous voltagអ៊ីខណៈពេលដែល
control is powered. Only trained, qualified and competent
personnel should operate the Test button.
To enable Zone Test:
1. Press and hold the Test button for more than 6 seconds.
The control displays ZN TEST OFF.
2. Press the Up button to change the display to ZN TEST
ON. After 3 seconds, the boiler, all pumps, and the
mixing valves are shut off.
3. The control operates stage one of the tN4 device with the
lowest address number. Device number one of the boiler
bus (b:01) has the lowest address number and device
24 of bus 3 (3:24) has the highest address number. All
other tN4 zones are shut off.
4. Pressing the Up button will turn off stage 1, and turn on
stage 2 of the same device (if that device has a second
stage) or turn on stage 1 of the device with the next
lowest address. The Down button can be pressed to
move to a device with a lower address number. The Up
and Down buttons will only move through devices on
the same bus.
5. Press the Item button to switch busses. The Up and
Down buttons can then be used to move through the
devices and the heating stages of each device on the
next bus.
6. To cancel the Zone Test, press the Test button. Once
the Zone Test ends

ឯកសារ/ធនធាន

WATTS 423 ម៉ូឌុលកំណត់ឡើងវិញជាសកល [pdf] ការណែនាំអ្នកប្រើប្រាស់ 423, 2517, 423 Universal Reset Module, 423, Universal Reset Module, Reset Module, Module

ឯកសារយោង

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