Neptronic SKR3E Installation Instructions & User Manual
Skr series steam humidifier with sdu module
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Summary of Contents for Neptronic SKR3E
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Page 1: Installation Instructions
SKR series Steam Humidifier with SDU module (Patent Pending) Installation instructions & user manual READ AND SAVE THESE INSTRUCTIONS SDU-SKR-CE-ENG/111012... - Page 2 Electric heaters, Thermostats and other control peripherals used to control HVAC equipment. For more information about our products, visit our web site at www.neptronic.com Each Neptronic product benefits from over 35 years of experience of our qualified staff.
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Page 3: Table Of Contents
SDU for SKR Humidifier Table of contents Table of contents Foreword & Manufacturer Presentation……………………………………………………………………………………………..i Presentation ................................... 2 1.1. Description of accessories supplied with the SKR humidifier with a Space Distribution Unit (SDU) module..2 ... -
Page 4: Presentation
SDU for SKR Humidifier User Manual Presentation 1.1. Description of accessories supplied with the SKR humidifier with a Space Distribution Unit (SDU) module. The following accessories are supplied along with the ones corresponding to kit option: 1 female fitting and a braided hose to connect the water supply. Accessories Part # Kit ROO... -
Page 5: Numbering System
SDU for SKR Humidifier User Manual 1.3. Numbering system Model number Kit option Steam capacity Space distribution unit (3 = 3 kg/hr) M is denoting Modulating humidifier E is denoting Export model No digit on standard unit Definition 2.1. Evaporation chamber Assembly including the stainless steel cylinder and a cover equipped with an electric element. -
Page 6: Characteristics
(Fig. 3) Electrical Requirements Weight kg (lb) Capacity Steam outlet Model with kg/hr diameter Voltage Current Power With mm (in) (lb/hr) Empty water (KW) SKR3E (6.6) (1-3/8") (36) (50) 3.75 SKR4E 12.2 (8.2) (1-3/8") (36) (50) SKR5E 16.1 (11.0) (1-3/8") (36) (50) SDU-SKR-CE-ENG-111012.doc... -
Page 7: Mechanical Installation
SDU for SKR Humidifier User Manual Mechanical installation 4.1. General recommendations CAUTION: RISK OF ELECTRIC SHOCK. DISCONNECT THE HUMIDIFIER FROM THE ELECTRIC SUPPLY BEFORE PROCEEDING TO THE MECHANICAL INSTALLATION. IMPORTANT: Mechanical installation should conform to Local and National Codes. ... -
Page 8: Steam Connection
SDU for SKR Humidifier User Manual Steam connection 5.1. Typical installation MODULE STEAM HOSE CLAMPS (x2) (Fig. 6) A silicone tubing (steam hose) is inserted between the steam outlet of the evaporation chamber and the steam manifold assembly of the SDU module. Verify that the clamps are tight at both end of the silicone tubing to prevent leaks. -
Page 9: Plumbing Connections
SDU for SKR Humidifier User Manual Plumbing connections The SKR humidifier can operate with soft or hard water. Therefore, for normal operation, no pre-treatment of water is necessary. IMPORTANT: Plumbing installation should conform to Local and National Codes. 6.1. Water supply ... -
Page 10: Drain Connections
SDU for SKR Humidifier User Manual 6.2. Drain connections IMPORTANT: No external drain traps are required. Drain outlet specification: Main drain 13mm (1/2”) standard copper (evaporation chamber). Pan drain 13mm (1/2”) standard copper. Water drain temperature: 60°C (140°F). ... -
Page 11: Power Supply Connections
SDU for SKR Humidifier User Manual Power supply connections CAUTION: 1. RISK OF ELECTRIC SHOCK, TURN OFF POWER AT THE EXTERNAL BREAKER/FUSED DISCONNECT BEFORE PROCEEDING TO THE POWER SUPPLY CONNECTION. 2. To reduce the risk of electric shock, do not connect to a circuit operating at more than 150V to ground. -
Page 12: Control Panel Display
SDU for SKR Humidifier User Manual Control panel display (Fig. 10) Front panel "ALARM" Indicator (red) O One or more abnormal conditions exist. flashing (see section 15-Types of alarm) O Maintenance is required, the humidifier is OFF. Normal operation. ''POWER'' Push button and Indicator (green) O... -
Page 13: Description Of The Skr Control Pc Boards
SDU for SKR Humidifier User Manual Description of the SKR control PC Boards The Printed Circuit Board is equipped with an advanced microprocessor, which controls all humidifier functions. IMPORTANT: Certain features on the SKR pc board cannot be used when the humidifier is integrated along with a SDU module. -
Page 14: P.c. Board For Skr-Sdu With Kit N
SDU for SKR Humidifier User Manual Safety HV cover P.C. Board for SKR-SDU with kit N High voltage terminal blocks L, N and power supply to heating element. Fuse Power supply to SDU fan. FAN-PROOF Dry contact (TB3) for remote alarm annunciation. (1A, 24 Vac). -
Page 15: 9.3. P.c. Board For Modulating Skr-Sdu With Kit N
SDU for SKR Humidifier User Manual Safety HV cover 9.3. P.C. Board for modulating SKR-SDU with kit N High voltage terminal blocks L, N and power supply to heating element. Terminal to SDU Fan (TB1). Fuse Dry contact (TB3) for remote alarm annunciation. FAN-PROOF (1A, 24 Vac). -
Page 16: Start Up Procedure
SDU for SKR Humidifier User Manual Start up procedure Follow this start-up procedure to avoid improper system operation: 1. Ensure that electrical and plumbing connections have been done in accordance with the instructions in this manual. a) Remove the humidifier cover. CAUTION: RISK OF ELECTRIC SHOCK, ENSURE THAT THE POWER IS TURNED OFF BEFORE REMOVING THE COVER. -
Page 17: Shut-Down Procedure
SDU for SKR Humidifier User Manual Shut-down procedure During seasonal shut down, the humidifier should be placed out of service. 1. Press ''DRAIN" push button to empty the water from the evaporation chamber, the ''DRAIN'' indicator will be 2. Once the cycle has ended, the ''DRAIN'' indicator will turn off. Close the shut off valve (external to the humidifier) on the water supply line. -
Page 18: Maintenance Of The Sdu Module
SDU for SKR Humidifier User Manual 8. Cleaning the evaporation chamber. a) Pour out any remaining water and scale from the bottom of the evaporation chamber b) Clean out the remaining scale, use a non-metallic brush and water. Some vinegar or any weak acid for cleaning stainless steel may be required. -
Page 19: Exploded View And Bill Of Material
SDU for SKR Humidifier User Manual Exploded View and Bill of Material 14.1. Exploded view of the SDU module (Fig. 14a) 14.2. Bill of Material of the SDU module Item Description Model Part number SDU manifold SKR-3E / 4E / 5E SW PIPESDUR-ASSY Fan assembly SKR-3E / 4E / 5E... -
Page 20: Exploded View Of Skr
SKR-3E / 4E / 5E SW SKRCONT-ASSY Evaporation chamber cover SKR-3E / 4E / 5E SP 9012-M Evaporation chamber gasket SKR-3E / 4E / 5E SP 9030 SKR3E SE 5991 Heating element SKR4E SE 5992 SKR5E SE 5993 Heating element gasket... -
Page 21: Types Of Alarm
SDU for SKR Humidifier User Manual Types of alarm CAUTION: RISK OF ELECTRIC SHOCK, POWER MUST BE TURNED OFF AT THE EXTERNAL BREAKER/FUSED DISCONNECT BEFORE REMOVING THE COVER OF THE HUMIDIFIER. IMPORTANT: A corrective action must be taken before doing a reset. ... -
Page 22: Troubleshooting Guide For Sdu Module
SDU for SKR Humidifier User Manual Troubleshooting guide for SDU module Problem Causes Corrective actions Check for the main power supply and fuses. The humidifier is not powered. Check that the sensor tube is connected properly to ... -
Page 23: Electrical Diagram
SDU for SKR Humidifier User Manual Electrical diagram 17.1. Electrical diagram for SKR with SDU module – Kit R SKR humidifier Power supply terminals Live Return Printed circuit board Mechanical compartment Heating element Quick Connect Fuse Powered 230 Vac FAN-PROOF SDU Fan SDU Air proving switch... -
Page 24: Electrical Diagram For Skr With Sdu Module - Kit N
SDU for SKR Humidifier User Manual 17.2. Electrical diagram for SKR with SDU module – Kit N SKR humidifier Power supply terminals Live Return Printed circuit board Mechanical compartment Heating element Quick Connect Fuse Powered 230 Vac FAN-PROOF SDU Fan SDU Air proving switch Fill Valve... -
Page 25: Electrical Diagram For Skr With Sdu Module - Kit M-N
SDU for SKR Humidifier User Manual 17.3. Electrical diagram for SKR with SDU module – Kit M-N SKR humidifier modulating - N Power supply terminals Live Return Powered 230 Vac Main Printed circuit board Fuse SDU Air proving switch FAN-PROOF SKR TRIAC JP5 SSR SDU Fan... -
Page 26: Modulating Humidifier With Hro20
SDU for SKR Humidifier User Manual 17.4. Modulating humidifier with HRO20 E x te rn a l tra n sfo rm e r S K R P rin te d c irc u it b o a rd (b y o th e rs ) 2 4 V d c T ra n s fo rm e r D ip sw itch e s... -
Page 27: General Condition Of Sales & Warranty
SDU for SKR Humidifier General conditions of sale & warranty 1. General 10. Return of good Unless otherwise arranged, in writing, the acceptance of the Goods received by the purchaser cannot be returned unless Order Confirmation by the purchaser includes acceptance of a completed "R.M.A.
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