Nortec BSD, ASD, CSD User Manual

STEAM
DISTRIBUTORS
ASD / BSD / CSD

Steam Distribution

Installation Manual

IMPORTANT: Read and save this guide for future

reference. This guide to be left with equipment owner.

1506117-B

Table Of Contents

INSTALLATION .....................................1

RECEIVING & UNPACKING EQUIPMENT .....................1

PRE-INSTALLATION.................................1

STEAM LINE INSTALLATION ............................1

GUIDELINES ...................................1

CONDENSATE RETURN GUIDELINES FOR MAIN STEAM LINES ..........2

DISTRIBUTOR MOUNTING...............................3

VERTICAL AIRFLOW ..................................4

HORIZONTAL AIRFLOW ................................5

VERTICAL AIRFLOW ..................................6

DISTRIBUTOR MOUNTING - HORIZONTAL & VERTICAL FLOW ...........7

DISTRIBUTOR MOUNTING...............................7

EXPLODED VIEW ....................................8

INSTALLATION

Chart #1

Steam Line Material

RECEIVING & UNPACKING EQUIPMENT

1. Check packing slip to ensure ALL material
has been delivered.

2. All material shortages are to be reported to
Walter Meier (NORTEC) within 48 hours
from receipt of goods. Walter Meier
(NORTEC) assumes no responsibility for
any material shortages beyond this period.

3. Inspect shipping boxes for damage and
note 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
F.O.B. factory basis. Any and all damage,
breakage or loss claims are to be made
directly to the shipping company.

6. Each distributor is provided with: installation
manual, one hose cuff, and two hose
clamps.

PRE-INSTALLATION CHECK

1. Ensure the total capacity of the humidifier is
not higher than the allowable maximum
steam capacity of the distributors used.

ASD 10: 22 lbs/hr (8 kg/hr)
ASD: 25 lbs/hr (9 kg/hr)
BSD: 35 lbs/hr (13 kg/hr)
CSD: 115 lbs/hr (45 kg/hr)

STEAM LINE INSTALLATION

Short run
< 10 feet

Steam

Hose

üü ü

Copper Tube Stainless

Steel Tube

(3 m)

Long run
> 10 feet

üü

(3m)

DI/RO
water

ü

4. Consult the following pages for step by step
distributor installation starting with Figure
#1.

5. Consult the charts below for steam and
condensate sizing guidelines when using
steam distributors.

Chart #2

Recommended material and size for steam run

Load Steam Run

lb/hr kg/hr ft m

0-30 0-13 0-10 0-3

0-30 0-13 10 + 3 +

0-30 0-13 0-10 0-3

0-30 0-13 10 + 3 +

Steam

Line

Material

Copper

tube

Copper

tube

Stainless

Steel tube

Stainless

Steel tube

Steam Line
Description

3/4" MED-L Tubing

(7/8" O.D.)

1” MED-L Tubing

(1 1/8" O.D.)

7/8” tube x

0.049” thick.

1 1/8” tube x 0.049”

thick.

GUIDELINES

1. Nortec steam hose should only be used on
short steam runs below 10 feet.

2. Ensure that no condensate produced in the
steam line will remain trapped. Steam
naturally flows upward and condensate
naturally flows downward.

3. See material recommended for use in the
chart below. To eliminate the metal
corrosion, Nortec does not recommend the
use of steel piping.

30-100 13-45 0-20 0-6

30-100 13-45 20 + 6 +

30-100 13-45 0-20 0-6

30-100 13-45 20 + 6 +

Please note that options shown in a bold-italic font requires
that reducers be used at both ends. These extra large sizes are to
allow for better condensation removal in long steam runs. These
sizes will not permit you to use hose coupling to connect your
self to either humidifier or distributors.

Copper

tube

Copper

tube

Stainless

Steel tube

Stainless

Steel tube

1½”MED-LTubing

2” MED-L Tubing

-1-

(1 5/8" O.D.)

(2 1/8" O.D.)

1 ¾” tube x

0.065” thick.

2” tube x

0.065” thick.

Chart #3

Recommended Condensate line at distributor(s)

Dispersion

Method

1 x Steam

distributor

3 x Steam

Distributor*

*When using more than one distributor, the condensate line
should be trapped before joined together.

Condensate

Hose

3/8" Nortec

1328840

3/8" Nortec

1328840

Copper tube

1/4" MED-L

Tubing

(3/8" O.D.)

1/2" MED-L

Tubing

(7/8" O.D.)

Stainless Steel

tube

3/8” tube

0.049” thick.

5/8” tube

0.049" thick

CONDENSATE RETURN GUIDELINES FOR

MAIN STEAM LINES

1. Use vertical condensate leg of distributor
only. Do not over-tighten clamp.

2. Drip stations on steam mains must be
located at all low points in the system, at
each elevation change and or directional
change.

6. Vertical drop of the drip station should be

1.5 times the diameter of the steam main
but no less then 12”.

7. At the bottom of this drip station is where
the “p-trap” is installed. It is to be 2” larger
then the duct static duct pressure.

8. All distributors must be individually trapped.

3. Horizontal runs of steam must have a 2”
rise per foot (10º) when flow is going
upwards from drip station and the steam
run is to fall ½” per foot (2º) when flow is
going downwards to drip station.

4. In a horizontal run of the steam main, drip
stations must be located at regular intervals
of 20 feet.

5. The drip station itself is a section of piping
connected to the bottom of the main. A full
size tee must be used to create a drip
station to allow the condensate to fall in the
drip station.

Figure #1
Drain Tee

Full Size
Drain Tee

-2-