nor-tec NH-EL Manuel utilisateur
Blower
Packs
Installation and
Operation Manual
Includes installation, operation
maintenance and troubleshooting
information for all atmospheric
humidifiers
2572641-C2 | 24 Feb 2014
Important: Read and save these instructions. This guide to be left with equipment owner.
Thank you for choosing Nortec.
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.
INSTALLATION DATE (MM/DD/YYYY)
MODEL #
SERIAL #
Contents
1Introduction
2Receiving and Unpacking
2Before Installation
3 Humidifier Components
3RM-BP (Remote Mounted Blower Pack)
4NH-EL Space
5Models
6 Installation
6Typical Installation
7Location 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
1| Blower Pack Installation Guide
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.
Blower Pack Installation Guide | 2
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
3| Blower Pack Installation Guide
Humidifier Components
RM-BP (Remote Mounted Blower Pack)
Table 1: 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. High speed will generate a louder
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
Condensate Outlet
Provides egress for condensed steam inside blower pack. Connects to drain or
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
Figure 2: Humidifier Components RM-BP
Blower Pack Installation Guide | 4
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
Figure 3: Humidifier components NH-EL Space
5| Blower Pack Installation Guide
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.
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
Figure 4: Models for RM-BP and NH-EL Space
Blower Pack Installation Guide | 6
Installation
Typical installation
Figure 5: Typical Installation
7| Blower Pack Installation Guide
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
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