Important: Read and save these instructions. This guide to be left with equipment owner. Blower Packs Installation and Operation Manual Includes installation, operation maintenance and troubleshooting information for all atmospheric humidifiers 2572641-C2 | 24 Feb 2014 Thank you for choosing Nortec. INSTALLATION DATE (MM/DD/YYYY) MODEL # SERIAL # Proprietary Notice This document and the information disclosed herein are proprietary data of Nortec Humidity Ltd. Neither this document nor the information contained herein shall be reproduced, used, or disclosed to others without the written authorization of Nortec Humidity Ltd. except to the extent required for installation or maintenance of recipient’s equipment. All references to the Nortec name should be taken as referring to Nortec Humidity Ltd. Liability Notice Nortec does not accept any liability for installations of humidity equipment installed by unqualified personnel or the use of parts/components/equipment that are not authorized or approved by Nortec. Copyright Notice Copyright 2015, Nortec Humidity Ltd. All rights reserved. Contents 1 Introduction 2 Receiving and Unpacking 2 Before Installation 3 Humidifier Components 3 RM-BP (Remote Mounted Blower Pack) 4 NH-EL Space 5 Models 6 Installation 6 Typical Installation 7 Location and Mounting 10 Plumbing 11 Electrical 12 Steam Lines 19 Accessories 19 Steam Adapters 20 Blower Pack 21 Startup/Operation 21 Sequence of Operation 22 Maintenance/Service 22 Troubleshooting 23 Spare Parts Introduction CAUTION: Servicing Disconnect main power before any servicing. The plumbing and electrical compartments contain high voltage components and wiring. Access should be limited to authorized personnel only. During and following operation of the humidifier, the steam and components in contact with the steam such as the blower pack, steam lines, steam distributors, and condensate lines can become hot and can burn if touched. Nortec Humidity Ltd does not accept any liability for installations of humidity equipment installed by unqualified personnel or the use of parts/components/equipment that are not authorized or approved by Nortec Humidity Ltd. CAUTION: Electrical All electrical work should be done according to local and national electrical code. Electrical connection to be performed by a licensed electrician. CAUTION: Plumbing Plumbing to be performed by a licensed plumber. Drain water from humidifier and condensate from blower pack can be very hot. Do not drain to public sink. All plumbing work should be done according to local plumbing code. CAUTION: Installation Do not mount on hot surfaces. Do not mount in area where freezing can occur. Do not mount on vibrating surface. Do not mount on floor. 1 | Blower Pack Installation Guide Receiving and Unpacking 1. Check packing slip to ensure ALL material has been delivered. 2. All material shortages are to be reported to Nortec within 48 hours from receipt of goods. Nortec assumes no responsibility for any material shortages beyond this period. 3. Inspect shipping boxes for damage and note damages on shipping waybill accordingly. 4. After unpacking, inspect equipment for damage and if damage is found, notify the shipper promptly. 5. All Nortec products are shipped on an FOB factory basis. Any and all damage, breakage or loss claims are to be made directly to the shipping company. Before Installation 1. Ensure that available voltage and phase corresponds with Blower Pack voltage and phase as indicated on Blower Pack’s specification label. 2. Ensure that the dedicated external fuse disconnect is of sufficient size to handle the rated amps as indicated on the specification label. Refer to local codes. 3. Report any discrepancy immediately to the site engineer. 4. Ensure sufficient clearances will be available as described in the “Location and Mounting” section. 5. Ensure steam lines can be routed to blower pack as described in the “Steam Lines” section. Figure 1: Specification Label Location RM-BP and NH-EL Space Blower Pack Installation Guide | 2 Humidifier Components RM-BP (Remote Mounted Blower Pack) Figure 2: Humidifier Components RM-BP Table 1: Function of Components Component Function of Component Fan Intake Grill Protects the fan from foreign objects Controls the fan speed between High and Low. High speed will generate a louder Speed Switch fan noise but achieve best absorption performance. Diffuser Provides uniform distribution of steam from blower pack Steam Inlet Connects to humidifier steam outlet with steam hose Provides egress for condensed steam inside blower pack. Connects to drain or Condensate Outlet drain water cooler Electrical Cord Used to provide power (115v) to humidifier Low Voltage Connector Provides feedback to humidifier when power is provided to blower pack 3 | Blower Pack Installation Guide NH-EL Space Figure 3: Humidifier components NH-EL Space Table 2 : Function of Components Component Function of Component Fan Intake Grill Protects the fan from foreign objects Speed Switch Controls the fan speed between High and Low Diffuser Provides uniform distribution of steam from blower pack Blower Pack Installation Guide | 4 Models Blower packs are an optional accessory used to directly distribute steam to localized areas or in structures that do not have a built-on air distribution system. The Remote Mounted Blower Pack (RM-BP) model requires field piping to be completed on site. The NH-EL Space humidifier models come pre-assembled with a Blower Pack mounted on the top. Both smaller steam capacity NH-EL models (5-30 lbs/hr) and medium steam capacity NH-EL models (45-100 lbs/hr) can be ordered for direct In-Space steam distribution. Figure 4: Models for RM-BP and NH-EL Space For in-space distribution with large steam size humidifier capacities greater than 100lbs/hr, (Dual cylinder NH-EL 150, 200, GSTC, SETC) , the RM-BP (remote mounted blower pack) must be added to humidifier. See “Installation” section 5 | Blower Pack Installation Guide Installation Typical installation Figure 5: Typical Installation Blower Pack Installation Guide | 6 Location and Mounting: NH-EL Space Refer to NH-EL Installation and operation manual (2570435) for instructions on mounting the NH- EL. RM-BP To wall mount the RM-BP, use 2 #12 x 3” long wood screws, supplied by others. These screws must be fastened securely on a 2 x 4 wood stud or equivalent support. If any spacer material is used between the bracket and the structural material such as drywall, increase the fastener length accordingly. DO NOT locate the humidifier any further then absolutely necessary from the blower pack location as net output will be reduced as a result of heat loss through the steam line. Blower packs have hot surfaces that could result in burns if touched. Mount blower pack on a suitable wall or vertical surface. Clearance dimensions shown are for reference only and are the minimum required for maintenance of the humidifier. Consult local and national codes before final location and installation. NORTEC does not accept responsibility for installation code violations. Install only in areas with ambient temperature 41-104 °F (5 – 40 °C) relative humidity 5 - 95% (non condensing). When possible, mount the blower pack at a height convenient for servicing. Figure 6: NH-EL Space Mounting Clearances 7 | Blower Pack Installation Guide Note: Do not mount on hot surfaces, where freezing can occur, vibrating surface, or floor. Keyholes are spaced 12 in. (30.48 cm) apart center to center. Insert screws into the studs until there is 1/4 in. (0.64cm) of screw exposed. Be sure the screws are level to each other. Raise the unit and place the screws through the keyholes. Make sure the unit is level, then tighten the screws to secure the unit in place. Place L Shaped brackets on top of the unit, with holes inline with the studs. Using the appropriate sized wood screw, fasten the “L” brackets to the studs, securing the unit from any upward motion Note: Use screws longer than 3/4” (7.5 cm) if drywall or other spacer is present. Figure 7: RM-BP Mounting Detail Blower Pack Installation Guide | 8 Do NOT use blower packs as ducted blowers. The air volume from a blower pack is not sufficient for proper operation in a ducted system. Table 3: Clearances for Blower Packs on Low Speed* Minimum Min. Left side Min. Right Humidification Min. Frontal Min. Overhead No. of Clearance side Capacity Clearance Clearance Blower Inches (cm) Clearance lbs/hr (kg/hr) Inches (cm) Inches (cm) Packs Inches (cm) 5 (2.2) 1 9 (23) 12 (31) 12 (31) 12 (31) 10 (4.5) 1 18 (46) 12 (31) 12 (31) 12 (31) 20 (9.1) 1 75 (191) 12 (31) 12 (31) 12 (31) 30 (13.6) 1 86 (219) 12 (31) 12 (31) 12 (31) 50 (22.6) 1 174 (442) 12 (31) 12 (31) 12 (31) 75 (34.1) 1 189 (481) 48 (122) 30 (77) 30 (77) 100 (45.4) 1 248 (630) 84 (214) 30 (77) 30 (77) Sound measurement: 57.4 db Table 4: Clearances for blower Packs on High Speed* Minimum Min. Left side Min. Right Humidification Min. Frontal Min. Overhead No. of Clearance side Capacity Clearance Clearance Blower Inches (cm) Clearance lbs/hr (kg/hr) Inches (cm) Inches (cm) Packs Inches (cm) 5 (2.2) 1 6 (16) 12 (31) 12 (31) 12 (31) 10 (4.5) 1 6 (16) 12 (31) 12 (31) 12 (31) 20 (9.1) 1 60 (153) 12 (31) 12 (31) 12 (31) 30 (13.6) 1 71 (181) 12 (31) 12 (31) 12 (31) 50 (22.6) 1 132 (336) 12 (31) 12 (31) 12 (31) 75 (34.1) 1 153 (389) 12 (31) 30 (77) 30 (77) 100 (45.4) 1 218 (554) 12 (31) 30 (77) 30 (77) Sound measurement: 64.1 db *NOTES: Nominal Conditions 72˚F (21.1˚C), 40% RH.