Viega ProRadiant SYSTEMS Basic Digital Setpoint Control... Instruction sheet

VIEGA • Viega... The global leader in plumbing and heating systems.
301 N. Main, Floor 9 • Wichita, KS 67202 • Ph: 877-Viega-NA • Fax: [phone] • E-Mail: [email protected] • www.viega.com
Product Instructions
Basic Digital Setpoint Control II
PI-PR-17023 05/08 1 of 5
Applications
The Viega Basic Digital Setpoint Control II is a
general purpose temperature control with a wide
range of applications in the HVAC industry. This
control provides two isolated SPDT relay contacts.
The two relays are controlled by a watertight sensor,
included with the Basic Digital Setpoint Control.
This control is commonly used as basic heating
and/ or cooling system control for commercial
and residential slab application.
Features
• Setpoint Control for Heating and Cooling
• Simple installation and programming
• Large digital LCD display
• Reliable, economical
• Two relay outputs with individual
Setpoint capability
• Watertight Sensor included
Specications
Digital Setpoint Control II
with watertight sensor (17029)
Watertight Sensor (17031)
Digital Setpoint Control II
Input: 24V, 120V, 240V
Output: 2 SPDT dry contacts,
1/2 hp @ 120 VAC
9.8 FLA, 58.8 LRA
Sensor: 6' Resistor, extendable up 100'
Setpoint: -40 - 248°F range
Differential: 1 - 150°F range
Accuracy: +/- 1°F
Environment: -40 - 140°F, 5 - 95% rH,
non-condensing
Power draw: 8 VA
Dimensions: 4.91 x 8.16 x 2.37 in.
Digital Setpoint Control II
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VIEGA • Viega... The global leader in plumbing and heating systems.
301 N. Main, Floor 9 • Wichita, KS 67202 • Ph: 877-Viega-NA • Fax: [phone] • E-Mail: [email protected] • www.viega.com
Product Instructions
Basic Digital Setpoint Control II
PI-PR-17023 05/08 2 of 5
Installation
Digital Setpoint Control II
with watertight sensor (17029)
Watertight Sensor (17031)
For proper control, the sensor for
the setpoint control must be located
within the heating and or cooling slab.
The sensor should be placed midway
between rows of tubing, and should be
placed in conduit which is cast into the
slab, so that replacement is possible.
SENSOR B
SENSOR A
SENSOR B
24VAC
SUPPLY
120V, 240V
SUPPLY
RELAY 1 RELAY 2
Wiring
Digital Input
LOAD 2
LOAD 1
Sensor A is triggering the two relays,
Relay 1 being boiler circulator pump,
and Relay 2 being system circulator
pump. In heating mode, when the
sensor detects temperature lower than
the selected setpoint minus the selected
differential both relays will be energized.
When the temperature reaches the
setpoint the relays will de-energize.
Note:
If using 24V to power the controller, the
24V supply must be connected to
terminals that are marked +, C on the
left side of the control.
If using 120 or 240V to power the
controller the 120 or 240V supply must
be connect to corresponding terminals
clearly marked on the right side of the
control.
When connecting the sensor connect
both red wires to one terminal and the
white wire to the other terminal.
Terminals for sensor marked "T".
120 V
COM

VIEGA • Viega... The global leader in plumbing and heating systems.
301 N. Main, Floor 9 • Wichita, KS 67202 • Ph: 877-Viega-NA • Fax: [phone] • E-Mail: [email protected] • www.viega.com
Product Instructions
Basic Digital Setpoint Control II
PI-PR-17023 05/08 3 of 5
Programming
Once the control is powered on
press "MENU" button on the control
keypad to adjust settings:
At any point during the
programming you may press the
"HOME" button to return back to the
sensor viewing.
1. Press "MENU", then press the
right arrow button when the
"Program Screen" appears
2. When the "Relay Screen"
appears, press right arrow to
select Relay 1
3. Scroll up or down to select
"Setpoint 1" then press the right
arrow button
4. Using the up and down
arrows to adjust the
Setpoint 1 desired setpoint
-40 - 248 °F (this is the
maximum slab temperature
setting of the heating and or
cooling system)
5. Once the setpoint has been
adjusted press the right arrow
button to accept and to display
the "Relay 1" menu
6. Select "Diffrntl" by pressing the
right arrow button
7. Using the up and down arrows,
adjust the differential, the range
is 1 - 150°F, once selected
press the right arrow to accept
and return to "Relay 1" menu
8. Select "Sensor A or
Sensor B" for "Relay 1"
using the up and down
arrows, then press right
arrow button to accept
9. Select "Heat / Cool" option
for "Relay 1" then press
right arrow button
10. Once you have completed
all of the steps either press
the "HOME" key or scroll
down using the down arrow
to "EXIT" and then press the
right arrow button
11. Repeat all steps to
congure "Relay 2"
Once all programming is
complete the conguration
can be locked to prevent any
unauthorized changes.
To Lock or Unlock the key-
pad simply press and hold the
"MENU" and "HOME"
buttons simultaneously for ve
seconds.
Operation
Heating Mode
In heating mode once the slab
temperature reaches the selected
setpoint temperature the relay
will be de-energized. As the slab
temperature decreases below the
selected differential the relay will
energize.
Example: Slab setpoint is set to
85 °F differential is set to 5, once
the slab temperature is below
80 °F the relay will be energized.
Cooling Mode
In cooling mode, the differential
is above the setpoint. So as the
temperature rises higher than the
selected setpoint plus the
differential the relay is energized.
Example: Slab temperature is
set to 66 °F with a differential
of 2. When the slab temperature
reaches 68 °F the relay will be
energized.

VIEGA • Viega... The global leader in plumbing and heating systems.
301 N. Main, Floor 9 • Wichita, KS 67202 • Ph: 877-Viega-NA • Fax: [phone] • E-Mail: [email protected] • www.viega.com
Product Instructions
Basic Digital Setpoint Control II
PI-PR-17023 05/08 4 of 5
Troubleshooting
If the system is not operating correctly, rst check that all
electrical connections have been made properly. Check
for power to all components (120 V and 24 V).
If the setpoint conguration is correct disconnect the
sensor and check its resistance. Replace the sensor if its
resistance value does not match the temperature in the
accompanying chart to the right.
Temp °F Temp °C Resistance
Ohms
-40 -40.0 851
-30 -34.4 872
-20 -28.8 893
-10 -23.3 914
0 -17.7 935
10 -12.2 956
20 -6.6 977
30 -1.1 998
40 4.4 1019
50 10.0 1040
60 15.5 1061
70 21.1 1082
80 26.6 1103
90 32.2 1124
100 37.7 1145
110 43.3 1166
120 48.8 1187
130 54.4 1208
140 60.0 1229
150 65.5 1250
160 71.1 1271
170 76.6 1292
180 82.2 1313
190 87.7 1334
200 93.3 1355
210 98.8 1376
220 104.4 1397
230 110.0 1418
240 115.5 1439
250 121.1 1460