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5.

Exercise extreme caution when installing in
fiber glass or internally lined ducts.

6.

High positive or negative static pressure ducts
or plenums have special requirements. High
positive static pressure ducts may require the
unit to be fitted with a fill cup extension kit.
High negative static pressure ducts will likely
require the drain rate of the humidifier to be
increased to compensate for the reduced
drainage caused by the suction.

7.

Vertical downflow ducts may induce an
artificial static pressure necessitating a fill cup
extension kit.

8.

Low temperature ducts below 60 F (15 C),
shallow ducts, or branch ducts might require
the use of a field supplied condensate drain
pan below the steam distributor. See Figure
#8.

9.

The steam distributor mounting plate is
perpendicular to the steam distributor. When
the mounting plate is attached to the side of
the duct, the distributor is level. An upward or

downward slope to the distributor will result in
poor condensate drainage and “spitting” of
condensate in duct. See Figure #9.

- 4 -

SHALLOW DUCT

DRAIN PAN

DRAIN PAN

T-BAR CEILING

TO DRAIN

BRANCH DUCT

Figure #8

Condensate Drain Pan

Wrong

Support

(If Needed)

Correct

Always

Mount

Level

Wrong

Figure #9

Leveling Distributor

3/8" Threaded Rod

(Field Supplied)

Hex Nut

Factory Attached

Steam Distributor

Duct

Figure #10

Distributor Support

1.

2.

3.

1. Steam Distributor Mounting Plate

2. Cut Hole In Duct For Insertion Using Template

3. Mount With Four Sheet Metal Screws

Figure #11

Cutting Duct for Mounting

6'

Min.

6'

Min.

Mount Steam Distributor

At Least 6' (2 M) From Elbow
Multiple Steam Distributors

Can Reduce This Distance

Figure #7

Steam Distributor Location

Summary of Contents for SGH Steam

Page 1: ...Steam Generating Humidifier Installation and Operation Guide IMPORTANT Read and save this guide for future reference This guide to be left with equipment owner SL 14050 Form 99 428 Rev 1 150 1633 Rev...

Page 2: ...E SUPPLY WIRING TO HUMIDIFIER 9 PRIMARY VOLTAGE SUPPLY WIRING FROM HUMIDIFIER S TO BLOWER PACKS 9 LOW VOLTAGE CONTROL WIRING 9 On Off Controls 9 CONTROL INSTALLATION 10 OPTIONAL MODULATION CONTINUOUS...

Page 3: ...ight side cover which can also be removed for ease of electrical connection For safety the door when closed keeps the side cover from being removed Single units have a plumbing compartment attached to...

Page 4: ...ral surface If any spacer material is used between the bracket and the structural material such as drywall increase fastener length accordingly In addition install a minimum of 2 field supplied fasten...

Page 5: ...stated in the STEAM LINE section on page 6 SGH Model Min Number of Blower Packs Min Overhead Clearance inches cm Min Front Clearance inches cm 010 1 18 45 30 76 020 1 18 45 36 91 050 1 36 91 84 213 1...

Page 6: ...8 9 The steam distributor mounting plate is perpendicular to the steam distributor When the mounting plate is attached to the side of the duct the distributor is level An upward or downward slope to...

Page 7: ...y and drain line connections should be installed in accordance with local plumbing codes WATER SUPPLY LINE 1 Humidifier is intended to operate on potable cold tap water 2 If the raw water is very hard...

Page 8: ...ediment and cause backup The drain line should be 1 O D copper pipe or larger Do not use plastic pipe for drain lines STEAM LINE 1 1 Steam lines for SGH models 010 through 020 require a minimum 7 8 O...

Page 9: ...nes for SGH 050 through 200 require 1 5 8 O D nominal 1 1 2 copper pipe For steam runs longer than 40 ft use insulated nominal 2 copper to ensure the draining of condensate 8 Do not use steel or plast...

Page 10: ...t for use when routing condensate hose back to humidifier s fill cup Similarly a short length of 3 8 I D condensate hose with clamps is supplied with Liebert s steam distributors to serve as a flexibl...

Page 11: ...ier if the blower pack gets overheated The control thermostat mounted on the steam distributor starts the fan when steam is generated 3 All blower packs have high efficiency blowers to minimize the fr...

Page 12: ...blower pack or air supply grille Do not mount on a outside wall where temperature fluctuation can affect control response 2 Mount duct humidistat in location representative of overall air humidity us...

Page 13: ...the humidifier starts its operation The controller waits 10 seconds before energizing the on board relays When the relays energize heating voltage is delivered to the cylinder After a 30 second delay...

Page 14: ...s a set of dry contacts at 61 20 on the control terminal strip The user can connect an indicator externally to 61 20 It will automatically be activated any time a fault is detected DOUBLE UNIT OPERATI...

Page 15: ...r implied by law No liability whatsoever shall be attached to THE COMPANY until said products have been paid for in full and then said liability shall be limited to the original purchase price for the...

Page 16: ...___ Cylinder Last Replaced _________________________ MTH DAY YR _________________________ MTH DAY YR _________________________ MTH DAY YR PRINTED IN CANADA LIEBERT CORPORATION 1050 Dearborn Drive P O...

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