10-40
Page 4
2006-09-15
Table 2. Ensuring A Demand Signal
2. TROUBLESHOOTING DISTRIBUTORS
CAUTION
KEEP IN MIND WHEN TROUBLESHOOTING DISTRIBUTORS THAT
THEY ARE BEING USED WITH STEAM AND THEREFORE, ARE AND
CAN REMAIN VERY HOT DURING THE TROUBLESHOOTING
PROCESS.
A.
TROUBLESHOOTING ATMOSPHERIC DISTRIBUTORS
(1) If the distributor is spitting out water, ensure that the distributor is installed level and
check the condensate return for proper slope, check head above the trap, and check
the trap that it is clear of obstructions.
(2) If the distributor is condensing inside the duct, make sure the installation clearances
are as indicated in Chapter 10-10 Installation, and make sure that the design conditions
have not changed. If over humidification of the duct results, check controls and safeties
(ensure safeties are properly installed and functioning).
3. SAM-e TROUBLESHOOTING
A.
PROCEDURE
(1) If the SAM-e is spitting out water, ensure that the distributor is installed per instructions
in Chapter 10-10 Installation and check the condensate return for proper slope and trap
and that it is clear of obstructions. The condensate return must be the lowest point of
the SAM-e header.
Check
Why and How
Safety Loop (terminal 1
and 2) is closed
The safety loop is checked to ensure that it is safe to operate. Checking to see 24 VAC from
terminal 1 to ground, and terminal 2 to ground should indicate whether is closed.
If found to be open, isolate which component in the safety loop is open to solve the issue. If
suspect, confirm that it is connected and operating properly.
Channel 1 has a signal.
Whether for on/off or modulating, a voltage potential signal must be present between
terminal 3 and 4 for the humidifier temperature.
If on/off there should be 5 VDC.
If VDC modulating, at least 25% of total possible signal must be present.
If mA controlled, at least 25% of total possible signal must be present.
If Transducer signals, the unit setpoint must be higher then the sensed room RH signal.
Channel 2 has a signal
Only applicable if configured to accept dual channel input.
If VDC modulating, at least 25% of total possible signal must be present.
If mA controlled, at least 25% of total possible signal must be present.
If Transducer signals, the high limit setpoint must be higher than the sensed RH signal.
Summary of Contents for NH Series
Page 1: ...Manual No H 101 2006 09 15 NH Series ELECTRODE STEAM HUMIDIFIER Installation Manual TM ...
Page 9: ...10 00 Page 1 2006 09 15 10 00 INTRODUCTION ...
Page 10: ...10 00 Page 2 2006 09 15 Figure 1 NHTC ...
Page 14: ...10 00 Page 6 2006 09 15 Figure 6 Typical NHTC Installation Sheet 1 of 2 ...
Page 15: ...10 00 Page 7 2006 09 15 Figure 6 Typical NHTC Installation Sheet 2 of 2 ...
Page 16: ...10 00 Page 8 2006 09 15 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 17: ...10 10 Page 1 2006 09 15 10 10 INSTALLATION PROCEDURES ...
Page 20: ...10 10 Page 4 2006 09 15 Figure 3 Water Drain and Supply Connection ...
Page 41: ...10 10 Page 25 2006 09 15 Figure 24 Typical SAM e Duct Installation ...
Page 45: ...10 10 Page 29 2006 09 15 Figure 27 Drain Water Cooler Option Installation with SAM e ...
Page 48: ...10 10 Page 32 2006 09 15 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 49: ...10 20 Page 1 2006 09 15 10 20 OPERATION ...
Page 54: ...10 20 Page 6 2006 09 15 Figure 6 Basic Steam Production Method ...
Page 56: ...10 20 Page 8 2006 09 15 Figure 7 Software Flow Chart Sheet 1 of 7 ...
Page 57: ...10 20 Page 9 2006 09 15 Figure 7 Software Flow Chart Sheet 2 of 7 ...
Page 58: ...10 20 Page 10 2006 09 15 Figure 7 Software Flow Chart Sheet 3 of 7 ...
Page 59: ...10 20 Page 11 2006 09 15 Figure 7 Software Flow Chart Sheet 4 of 7 ...
Page 60: ...10 20 Page 12 2006 09 15 Figure 7 Software Flow Chart Sheet 5 of 7 ...
Page 61: ...10 20 Page 13 2006 09 15 Figure 7 Software Flow Chart Sheet 6 of 7 ...
Page 62: ...10 20 Page 14 2006 09 15 Figure 7 Software Flow Chart Sheet 7 of 7 ...
Page 72: ...10 20 Page 24 2006 09 15 Figure 14 NORTEC OnLine Status Page ...
Page 73: ...10 30 Page 1 2006 09 15 10 30 MAINTENANCE PROCEDURES ...
Page 79: ...10 40 Page 1 2006 09 15 10 40 TROUBLESHOOTING ...
Page 91: ...10 50 Page 1 2006 09 15 10 50 TECHNICAL ...
Page 95: ...10 50 Page 5 2006 09 15 Figure 4 NHTC NHPC Wiring Diagram ...
Page 108: ...10 50 Page 18 2006 09 15 THIS PAGE INTENTIONALLY LEFT BLANK ...