59 | Troubleshooting
NHRS Electric Steam Humidifier – Mandatory Pre-Start-Up Checklist (p3 of 3)
Unit Serial #: ____________ # of humidifiers: ____________
Tag:_____________
Unit type: NHRS
Voltage: _____V/___ph
Steam output: ____lbs./hr
Customer/Job:___________ Address: ___________________________________________
Start-up by: _____________ Date of Start-up: ___/___/___
PRELIMINARY:
Pre-start-up checklist completed? Yes
No
If no, return to Pre-Start-up Checklist before going on with start-up procedure.
START-UP PROCEDURE:
The prerequisites for getting power and water into the steam cylinder is as follows:
1. Check that main breaker is on and power is at the unit.
2. Check that main water shut-off valve is open.
3. on/off switch must be switched on.
4. Control circuit 1 - 2 must be made.
5. Modulation humidistat, if present, must be calling.
6. Door interlock switch must be made (interlock switch can be pulled out to operate unit).
NOTE:
The unit will undergo a System Test to ensure integrity of all the components. If the test is successful,
the unit will fill and the float test will be carried out. If everything ok, the green light will come on and
the display will show NHRS Ready.
OPERATIONAL CHECK:
1. Switch on the humidification by raising the humidity set point on the humidistat/controller.
2. Switch off the humidification by lowering the humidity set point on the humidistat/controller.
3. Check for correct functioning of the external monitoring safeties such as air proving and high
limit.
4. When check complete: Set the desired humidity level.
REMARKS:
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Summary of Contents for NHRS 010-090
Page 6: ...3 Introduction Humidifier Components Figure 2 NHRS Humidifier Components ...
Page 28: ...25 Installation Figure 17 Duct Sensor Wiring ...
Page 30: ...27 Installation Figure 20 Digital Wall Humidistat Remote Wall Sensor ...
Page 31: ...Installation 28 Transducer Control Wiring Figure 21 Transducers Figure 22 Digital Transducers ...
Page 58: ...55 Troubleshooting Wiring Diagrams Figure 34 Wiring Diagram NHRS 010 to 090 ...
Page 59: ...Troubleshooting 56 Figure 35 Wiring Diagram NHRS 135 to 180 ...
Page 65: ...Spare Parts 62 NHRS Plumbing Parts Figure 36 Exploded view NHRS plumbing parts ...
Page 67: ...Spare Parts 64 NHRS Electrical Parts Figure 37 Exploded view NHRS electrical parts ...
