wirsbo DuoMix 201, Installation Instructions Manual

Page: 8 / 32

DuoMix Installation Handbook 8
Test the Power Supply
Make sure exposed wires terminals are not in contact with other wires or grounded surfaces. Turn on the power and measure the
voltage between the
Power N — L (15 and 16) terminals using an AC voltmeter, the reading should be between 110 and 130 V (ac).
Test the Powered Inputs
Mixing Demand ( Mix1 Demand & Mix2 Demand)
If a mixing demand is used on the mixing 1 section, measure the voltage between the Mix1 Demand (1 and 2) terminals. When a call
for heat on the mixing 1 section is present, you should measure between 24 and 240 V (ac) at the terminals. When the demand is
gone, you should measure less than 5 V (ac).
If a mixing demand is used on mixing 2 section, measure the voltage between the Mix2 Demand (3 and 4) terminals. When a call for
heat on the mixing 2 section is present, you should measure between 24 and 240 V (ac) at the terminals. When the demand is gone,
you should measure less than 5 V (ac).
Test the Outputs
Mixing 1 System Pump (
Mix1 Pmp)
If a mixing system pump is used in the mixing 1 section, make sure power to the terminal block is off and install a jumper between
the
N – Mix1 Pmp (11 and 12) terminals. When power is applied to these terminals, the mixing system pump Mix1 Pmp should start.
If the pump does not turn on, check the wiring between the terminal block and the pump and refer to any installation or
troubleshooting information supplied with the pump. If the pump operates properly, disconnect the power and remove the jumper.
Mixing 2 System Pump ( Mix2 Pmp)
If a mixing system pump is used in the mixing 2 section, make sure power to the terminal block is off and install a jumper between
the
N – Mix2 Pmp ( 7 and 8) terminals. When power is applied to these terminals, the mixing system pump Mix2 Pmp should start.
If the pump does not turn on, check the wiring between the terminal block and the pump and refer to any installation or
troubleshooting information supplied with the pump. If the pump operates properly, disconnect the power and remove the jumper.
Variable Speed Injection Pumps ( Var1 Pmp & Var2 Pmp)
If the variable speed injection pump of the mixing 1 section is used, make sure power to the terminal block is off and install a jumper
between the terminals
N – Var1 Pmp (13 and 14). When power is applied to terminals, the variable speed injection pump should
operate at full speed. If the pump does not operate, check the wiring between the terminal block and the pump and refer to any
installation or troubleshooting information supplied with the pump. If the pump operates properly, disconnect the power and remove
the jumper.
If the variable speed injection pump of the mixing 2 section is used, make sure power to the terminal block is off and install a jumper
between the terminals
N – Var2 Pmp (9 and 10). When power is applied to terminals, the variable speed injection pump should
operate at full speed. If the pump does not operate, check the wiring between the terminal block and the pump and refer to any
installation or troubleshooting information supplied with the pump. If the pump operates properly, disconnect the power and remove
the jumper.
Boiler Enable
If a boiler is connected to the Boiler Enable (5 and 6) terminals, make sure power to the boiler circuit is off and install a jumper
between the terminals. When the boiler circuit is powered up, the boiler should fire. If the boiler does not turn on, refer to any
installation or troubleshooting information supplied with the boiler and/or Boiler Control. If the boiler operates properly, disconnect
the power and remove the jumper.
Connect the Control
• Make sure all power to the devices and terminal blocks is off and remove any remaining jumpers from the terminals.
• Reconnect the terminal blocks to the control by carefully aligning them with their respective headers on the control and then pushing
the terminal blocks into the headers. The terminal blocks should snap firmly into place.
Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance
°
F
°
C
Ω °
F
°
C
Ω °
F
°
C
Ω °
F
°
C
Ω
-50 -46 506,000 20 -7 47,100 90 32 7,400 160 71 1,700
-40 -40 337,000 30 -1 34,400 100 38 5,780 170 77 1,390
-30 -34 228,000 40 4 26,700 110 43 4,730 180 82 1,180
-20 -29 166,000 50 10 19,900 120 49 3,740 190 88 977
-10 -23 116,000 60 16 15,000 130 54 3,100 200 93 838
0 -18 86,500 70 21 11,900 140 60 2,490 210 99 701
10 -12 61,700 80 27 9,170 150 66 2,010 220 104 606