Armstrong AM-92M Manuale di installazione e funzionamento - Pagina 17

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Preliminary Procedure

STEP 1: Check Shipment Against

Packing List. All components are

listed on the packing slip. Report any

shortages immediately. If the

humidifier or accessories have been

damaged in transit, notify us and file

claim with the transportation company.

If your order covers more than one

unit, separate each complete unit.

Humidifier tagging and manifold

tagging will be the same as shown on

the packing list. Model, Serial Number,

Steam Pressure, Orifice and Orifice

Figure 15-1. Model 90 Single Manifold Installation

90° Compression

Elbow and Tube

Note: Maximum operating pressure is 15 psig. Steam system should have a neutral Ph of 7.2 to 7.6.

Table 15-1. Fittings and Adaptors

Single Manifold Installation (reducer bushings A17891 included)

Description

Model 90 Horizontal

Model 90 Vertical

Model 91

Single Manifold Installation (reducer bushings A17891 included)

Multiple Manifold Installation

Description

All 90/91 Installations

Multiple manifold applications will be supplied with (1) A4967B adapter each.

Vertical mounted manifolds will be supplied with an A4967B adapter.

Figure 15-3. Multiple Manifold Installation

Header Trap

must be drained

to atmosphere

Restriction (if any) are on the metal

plate on the humidifier body. Operator

for electric motor operated unit is

shipped separately but marked with

the serial number of the humidifier

with which it must be used. Be sure

serial numbers agree.

STEP 2: Spot Humidifier Locations.

Locate each humidifier according to

the engineer's layout or as indicated

by your Armstrong Representative. If

you must locate the humidifiers

yourself, be sure to read and observe

the "Do's and Don'ts" on the following

page.

Part No.

B4583

B4584

B3931

Part No.

A4967B

Union/Nipple

(supplied by customer)

F&T Steam Traps

(purchased seprately)

SteamStik Almuminum Manifolds

STEP 3: Cut Hole in Duct or Plenum

for Manifold. Cut a 2" hole for each

manifold location.

STEP 4: Insert Manifold in Duct.

Outlet holes must point upstream into

air flow with all SteamStik manifolds.

Where manifold is positioned

horizontally, use a spirit level.

Manifolds longer than one foot should

be supported. When supporting the

manifold on the far end allow for

manifold expansion and contraction of

1/2" - 1".

Continue installation with step 5

beginning on page 8.

Figure 15-2. Model 91 Single Manifold Installation

90° Compression Elbow

and Male End Adaptor

*When using 90° Elbow, maintain 2.65" Dimension)

Manifold Outlet Fittings

Elbow/Tube Fitting with

1/2" MNPT Connection

Manifold Outlet Fittings

Not Applicable

Table 15-2. Header size of manifold piping

Separator

Size

Support Rod

(supplied by customer)

Manifold Installation

Number of reducer bushing(s) supplied

1 (inlet)

Number of reducer bushing(s) supplied

2 (1 inlet, 1 outlet)

out of humidifier

Minimum

Suggested

Pipe Size

Header Size

1/2"

3/4"

2-1/2"