Taco Radiant Mixing Block, Инструкция, Страница: 12 / 16

12
Boiler Minimum Temperature
The boiler minimum temperature item should be set to the lowest water temperature at
which the boiler can operate without causing the boiler flue gases to condense. Consult
the boiler manufacturer for recommended minimum boiler supply temperatures. This item
is only available if a boiler sensor is connected to the control.
Warm Weather Shut Down (WWSD)
The warm weather shut down is the outdoor temperature at which the system is shut
down. This item is only available if the outdoor design temperature is not set to OFF.
Units
The units of temperature in which all of the View and Adjust items are viewed in.
The control automatically goes back to the view menu when the buttons are left alone for 20 seconds
All settings will be saved even during power down of the control
T
MIN
ADJUST
F
BOIL
ADJUST
F
WWSD
ADJUST
F
As in any troubleshooting procedure, it is important to isolate the problem as much as possible. By using the Error Messages located on
page 14, the trouble shooting process can be greatly simplified. When an error message is displayed on the RMC, refer to the error
messages on page 14 to identify the cause of the error and use standard testing procedures to confirm the fault. If you suspect an
external wiring fault, return to step three and carefully check all external wiring connections.
Once the fault has been corrected, press any button on the face of the control to clear the error message.
TEST ROUTINE
The main control functions of the RMC can be tested by pressing and holding the UP button for more than three (3) second. After the
UP button has been pressed for more than three (3) second, the RMC the follows the following sequence.
Step One
The variable speed output is increased from 0% to 100% over 10 seconds.
Step Two
The variable speed output is decreased from 100% to 0% over 10 seconds.
Step Three
The System Pump is turned on for 10 seconds.
Step Four
The Boiler Contact is turned on. After 10 seconds, the Boiler Contact and the
System Pump contact are turned off. The RMC continues normal operation.
MANUAL OVERRIDE
In the event that the RMC fails to operate, a manual operation switch is located on
the RMC’s circuit board. When the manual operation switch is set to Man, the
variable speed injection pump and the system pump outputs are turned on. This
operation continues until the manual switch is returned to its original position.
FUSE REPLACEMENT
The Variable Speed output of the RMC is fused protected. This fuse is located on
the circuit board on the back of the RMC. This is a field replaceable item.
Fuse rating: 1 A 1/12 hp, fuse T1 A 250 V
ADJUSTMENT OF SETTINGS
If the outdoor temperature is cold and the rooms are cold, increase the MIX DSGN
setting by 5
°
F (3
°
C) per day.
T
Trouble Shooting
Com Sup Sys
Ret
Com Boil Out Com Heat
Dem
Made in Canada
Var
T1A 250V
Sys
Man
N
H
Pmp
Use copper
conductors only
Power: 120 V +/- 10%
50/60 Hz, 750 VA
Var. Speed: 120 V
(ac) 1A
Pmp Relay: 120 V
(ac) 5 A, 1/6 hp
Injection Mixing
967-01
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C
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B
C
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S
F
C
C
P
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1
5
ON OFF
1
2
3
4
5
C US
158033
B
O
IL
E
R
R
As in any troubleshooting procedure, it is important to isolate the problem as much as possible. By using the Error Messages located on
pages 13 &14, the trouble shooting process can be greatly simplified. When an error message is displayed on the RMC, refer to the
error messages on pages 13 &14 to identify the cause of the error and use standard testing procedures to confirm the fault. If you sus-
pect an external wiring fault, return to step three and carefully check all external wiring connections. Once the fault has been corrected,
press any button on the face of the control to clear the error message.