GeneralAire Elite Steam User Manual

Model Elite Steam Humidifiers

User Manual

Manual d’utilisation

Read and Save These Instructions

Lire et Conserver Ces Instructions

Revision 4.0

Manufacturers of Whole House Residential Indoor Air Quality Products. Humidifiers - Dehumidifiers - Air Cleaners - UV Air Purifiers - Heat/Energy Recovery Ventilators

www.generalfilters.com

LATCH THE CYLINDER CLAMP

REMOVE BEFORE INSTALLING

Warning

If present, remove the following items:

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

IMPORTANT WARNINGS

BEFORE INSTALLING OR HANDLING THE HUMIDIFIER PLEASE CAREFULLY READ AND F OLLOW THE INSTRUCTIONS AND SAFETY STANDARDS DESCRIBED IN THIS MANUAL AND ON THE LABELS ATTACHED TO THE Elite Steam.

CAUTION: ALWAYS DISCONNECT THE MAIN POWER

Elite Steam produces non-pressurized steam by means of electrodes immersed in the water contained in the plastic steam generator cylinder. Electric current passes through the water between the electrodes, heating the water into steam, which is then used to humidify the air.

The quality of the water used affects the operation of this unit, so the Elite Steam may be supplied with untreated water, as long as this is drinkable and not softened or demineralized. The water converted into steam is automatically replaced through an electric fill valve. Periodically, based on the water quality, the unit will also drain some water to dilute the build-up of minerals in the steam generator. In cases of high water mineral content, an activated carbon filter is series with a particulate filter, no more than 5 microns is suggested.

This humidifier has been designed exclusively to directly humidify rooms or ducts, using a distribution system. The installation, use and maintenance operations must be carried out according to the instructions contained in this manual and on the labels applied internally and externally.

IMPORTANT: BEFORE beginning installation:

• Check for shipping damage to cartons. Mark the shipping waybill accordingly.

• Open cartons and check for any hidden damage. Mark the shipping waybill accordingly.

• Check packing slip to ensure all items have been received. Notify GENERAL FILTERS, INC. of any shortages or damaged

parts. You must notify General Filters, Inc. within 5 working days of any shortages.

CAUTION: ELECTRIC SHOCK HAZARD! The humidifier has components under power inside! CAUTION: SCALDING HAZARD! The humidifier has hot parts ( 100°C/ 212°F) WARNING: Install the humidifier out of the reach of children. The humidifier must be installed in accordance with all local and national standards. All service and/or maintenance operations must be performed by qualified personnel who are aware of the necessary precautions and are capable of performing the operations correctly. Disconnect the humidifier from the main power supply before accessing any internal parts. The conditions of the environment and the power supply voltage must comply with the specified values listed on the data label in the humidifier. All other uses and modifications made to the humidifier that are not authorized by the manufacturer are considered incorrect, and the manufacturer assumes no liability for the consequences of any such unauthorized use.

Please note that the humidifier contains powered electrical devices and hot surfaces. The humidifier is made of metallic and plastic parts. All parts must be disposed of according to the local and national

standards for waste disposal. WARNING: Your humidifier requires water to operate. Do NOT mount it above materials or machinery that could be

damaged if a leak occurs. General Filters, Inc. assumes no responsibility for consequential or inconsequential damage as a result of any leaks.

BEFORE OPENING OR SERVICING THE HUMIDIFIER!

We wish to save you time and money! We can assure you that the thorough reading of this manual will guarantee correct installat ion and saf e use of the product described.

Disposal of the parts of the humidifier: of according to the local sta ndard s on waste disposal.

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

the humidifier is made up of metallic and plastic parts. All parts must be disposed

CONTENTS

1. HOW THE ELITE STEAM WORKS 4

1.1 B

1.2 C

1.3 C

ASIC OPERATION 4 YLINDER LIFE 5 ALCULATING HUMIDITY LOAD 5

2. MODELS 6

3. INSTALLATION 7

3.1 P

3.2 M

3.3 P

3.4 S

3.5 P

3.6 C

3.7 W

OSITIONING 7

OUNTING 7 LUMBING 9 TEAM DISTRI B U TI O N 10 OWER WIRING 13 ONTROL WIRING 13

IRING CONNECTIONS: 15

4. START-UP 16

4.1 S

4.2 T

4.3 S

4.4 S

TARTUP CHECKLIST 16 HE ELITE STEAM CONTROLLER 16 TARTING ELITE STEAM 16 TARTING WITH A NEW CYLINDER 16

5. OPERATING ELITE STEAM 17

5.1 D

5.2 C

5.3 A

5.4 R

5.5 U

5.6 A

ISPLAYING INFORMATION 17 HANGING THE MAXIMUM PRODUCTION 17 CTIVATING MANUAL DRAIN 17 ESETTING THE HOUR COUNTER 17 SING THE GFX3 HUMIDISTAT 18 LARMS 18

6. TROUBLE SHOOTING 19

7. MAINTENANCE 20

7.1 P

7.2 C

7.3 R

ERIODIC CHECKS 20 YLINDER MAINTENANCE 20 EPLACEMENT PARTS 21

8. TECHNICAL SPECIFICATIONS 22

9. LIMITED WARRANT Y 23

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

No.

Description

Steam generator cylinder

Room blower/manifold (optional)

User interface/display

On/Off, SET buttons

Fill & tempering valves

Drain pump

Tab. 1.a

Fig. 1.a

EVF

1. HOW THE ELITE STEAM WORKS

1.1 Basic Operation

Elite Steam is an electrode humidifier. It produces steam for humidification by passing electric current through the water between metal electrodes in the plastic steam generator cylinder. There are no heating elements. Steam output is directly proportional to the conductivity of the water, and the amount of electrode immersed in the water.

On a call for humidity, the Elite Steam controller will open the water fill valve (1) and allow water to enter the cylinder. A flow restrictor (4) prevents the unit from filling too quickly or with too much pressure. The water flows up the fill tube (2) and into the fill cup (3). W ater then flows over the dam in the f ill cup (3), which creates a 1” air gap to prevent backflow of contaminated water into the feed lines, and through the fill tube (6) and into the bottom of the steam cylinder (5). Any backflow or overflow of water travels through the overflow hose (13) to the drain.

As the water fills the cylinder, it will reach the electrodes (7) and current will begin to flow. As the water continues to fill the cylinder, the current will increase, and this is monitored by an amperage transformer connected to one of the power wires and located on the electronic controller. When the desired current is reached, the fill valve will close (1) and the water will then begin to warm and produce steam. If the water reaches the cylinder full probes (9) or if current rises too much, the drain pu mp (11) will be activated to drain awa y some water and reduce the current flow to acc eptable levels. Note that, any time the drain pump is activated, the tempering valve (10) will be opened for tempering the hot drained water down to 140 degrees F / 60 degrees C in accordance to local and national standards.

Periodically, based on the incoming water conductivity, the unit will run drain pump (11) and drain some water to reduce the mineral concentration. Every 120 hours the unit automatically drains to remove mineral sediment on the bottom of the cylinder. A strainer (12) in the cylinder helps to prevent mineral debris from jamming the drain pump (11). In case Elite Steam remains powered but idle, i.e. without producing steam, for more than 72 hours (3 days), the cylinder will be emptied to not have stagnant water inside.

If there is no water in the cylinder, there will be no current flow and no steam production. The electrodes do not burn out, but they will eventually become completely coated with mineral and the cylinder will then need to be replaced. Cleaning cylinders may cause electrode damage, therefore voiding its warranty. See 7.2.2 maintenance section on page 21.

Fig. 1.b

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

Table 1.2 Pounds of Moisture / Hour / Cubic Foot *

Indoor Air

Temp °F

35%

Indoor RH% 40%

45%

50%

0.00015

0.00018

0.00021

0.00024

0.00017

0.00020

0.00023

0.00026

0.00019

0.00022

0.00025

0.00028

100%

20%

Fig. 1.c

1.2 Cylinder Life

1.2.1 Basics of the Steam Cylinder The Steam Cylinder is the engine of the humidifier. As the humidifier operates water is evaporated and minerals are left behind. Much of these minerals are removed through the c ylinder drain. Some are depos ited on the walls of the cylinder and the cylinder electrodes. When a lower section of the electrodes develop a thick coating, the water level is raised to expose clean electrode surface. Eventually minerals cover the electrodes’ entire length with a thick coating and little electrical current can pass between them resulting in poor steam output. The humidifier can sense the low amperage and will display the E6 Cylinder Exhausted error code. There are several factors that influence cylinder life.

1.2.2 Water Characteristics of water influence cylinder life and can vary greatly from place to place. Total mineral content of the water is important. Equally important is what minerals are present in the water. Most water conditions result in flaky scale that eventually fills the bottom of the cylinder until it can no longer function. Water with high silica content can result in a thin glass-like coating on the electrodes that is highly insulating resulting in shorter cylinder life. Only cold wa ter is to be used. Water conductivity that is not matched to the correct cylinder will shorten cylinder life.

1.2.3 Water Filtration Typically additional filtration of the incoming water supply is not necessary. If, however, mineral content is known to reduce cylinder life excessively or if cylinder life proves insufficient then water filtration c an be added. In most cas es the addit ion of a two element water filter can improve cylinder life. The filter should contain an activated carbon element and a particul ate filter element rated for 5 microns or less. Micron is a size measurement. The filter system should have a flow rate of at least 2 gpm. The activated carbon will absorb much of the mineral content while the particulate filter will catch any granular material or sediment. It is important to remember that the increase in cylinder life will be accompanied by the need to replace filter elements with each cylinder change.

1.2.4 Humidity Load and Cylinder Life Humidity load demands have an effect on cylinder life. Normal installations where humidity capacity is properly sized require only intermittent periods where full humidifier capacity is required. This allows the water level in the cylinder to be increased only as electrode segments become insulated. This tends to maximize cylinder life.

Extraordinary installations that require constant operation at full capacity reduce cylinder life. The water level in the cylinder is, on average, much higher, and the electrodes become completely insulated mo re quickly. Installations like this may result in cylinder life of less than 1000 hours.

The importance of providing adequate humidifier capacity should not be underestimated.

1.2.5 Maximum Production Another factor affecting cylinder life is the maximum production setting. A higher production rate will result in a shorter cylinder life. For this reason DS-25 and RS-25 units are preset from the factory at 70%. Further reductions in Maximum Production will extend cylinder life. See Figure 1.c.

1.2.6 Structures Under Construction In high end construction projects, humidification is often required while the structure is being finished. Humidification is necessary to protect and stabilize wood floors, trim and decoration. Humidification load, however, in an unfinished structure may be five to eight times higher than when finished. Elite Steam humidifiers may be operated while construction is underway but, reduced cylinder life is to be expected and budgeted for. Good practice dictates that the steam cylinders also be replaced once the project is complete.

1.3 Calculating Humidity Load

1.3.1 Steps to Determine Humidity Load

*Based on .5 air changes per hour.

Total Square Footage x Average Ceiling Height x Factor From Table 1.2 x 1.05 for each Fireplace Humidity Load in lbs./hour

x 2.88 convert to gallons/day Gallons per Day Humidity Load

Cylinder Life

* Based on .5 air charges per hour.

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

PART NUMBER

DESCRIPTION

PARTS INCLUDED

RS 15P Fig. 2.b

Room steam discharge, 15 gallons per day (5.5 Lbs per hour) 115-120v

Complete Humidifier. GFX3 humidistat, code valve, water fill connector, water supply tubing

RS 25 Fig. 2.b

Room steam discharge, 35 gallons per day (12 Lbs per hour) 220-240v

Complete Humidifier. GFX3 humidistat, code valve, water fill connector, water supply tubing

DS 15P

Duct steam injection 15 gallons Humidifier only, hour) 115-120v

Humidifier only, Kit select ion r equir ed Fig. 2.a

per day (12 Lbs per hour) 220-240v

Kit selection required

DMNKIT

Duct mount kit

8 ft. steam hose, nozzle, GFX3 humidistat, code valve, tubing, air proving pressure switch.

wall sleeve with 120v blower and grille pkg.

RMB 3 5

Remote mount blower

12 ft. steam hose, GFX3 humidistat, code valve, condensate wall sleeve with 240v blower and grille pkg.

2. MODELS

There are two basic models available in two voltages. Duct models require selection of an additional kit. Duct Steam Injection Room Steam Discharge

Fig. 2.a DS 25

(not shown) RMB 1 5

(not shown)

(not shown) EDMK4

(not shown)

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

Kit selection requ ired per day (5.5 Lbs per Duct steam injection 35 gallons

Remote mount blower kit for DS 15

kit for DS 25 Economy Duct mount kit 4 ft. steam hose, nozzle, 5 ft. condensate hose, fill connector,

Fig. 2.a Fig. 2.b

MODEL LIST

Humidifier only,

water fill connector, condensate hose, water supply 12 ft. steam hose, GFX3 humidistat, code valve, condensate

hose, water fill connector, water supply tubing, and thru-the

air proving pressure switch (Humidistat not included)

3. INSTALLATION

Millimeters

Inch

(150 mm)

6”

(150 mm)

6”

(150mm)

6”

(150 mm)

6”

(600 mm)

24” F max. 0.2°

Tab. 3.a

Fig. 3.a

Duct Steam Injection

Fig. 3.b

Millimeters

Inch

150 mm

6”

1800 mm

72”

1800mm

72”

600 mm

24”

Tab. 3.b

Room Steam Discharge

Millimeters

Inch A 341 mm

13.5“

204 mm

8.1“

600 mm

23.7“

Kilograms

Pounds

Weight empty

8kg

18 lbs

Weight packaged

10kg

22 lbs

Weight i nstalled with water

12kg

26 lbs

Unit Dimensions: Duct and Room Units

Fig. 3.c

3.1 Positioning

The Elite Steam has been designed for wall mounting and, since it is an atmospheric steam humidifier, should be placed close to the point where the steam will be used, to minimize the steam hose length (and the amount of condensate). Certain clearances must be maintained around the unit for safety and maintenance.

3.2 Mounting

3.2.1 Removing the front cover

The front cover is secured by four screws located at the four corners of the unit. Use a Phillips head screwdriver to remove the four cover screws. Then simply pull the front cover away from the back part of the unit. Return it in reverse order.

Be careful not to over-tighten the screws.

Fig. 3.d

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

Fig. 3.e

Tab. 3.c

3.2.2 Fastening to the wall Drill the wall according to the drilling template supplied; then secure Elite Steam firmly to the wall using the screws and anchors supplied.

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

Fig. 3.f

3.3 Plumbing

Hydrogen ions (pH)

7 8.5 Hydrogen ions (pH)

7 8.5

Specific conductivity (R,20°C)

μS/cm

300

Specific conductivity (R,20°C)

μS/cm

125

500

Dry residue at 180°C

mg/l

(*)

(*) Dry residue at 180°C

mg/l

(*)

Total hardness

mg/l CaC³O

150

400 Total hardness

mg/l CaC³O

200

Temporary hardness

mg/l CaC³O

200 Temporary hardness

mg/l CaC³O

150

Iron + Manganese

mg/l F e + Mn

0.2 Iron + Manganese

mg/l F e + Mn

0.2

Chlorides

ppm Cl

30 Chlorides

ppm Cl

Chlorides

mg/Si2O

20 Chlorides

mg/Si2O

Chlorine residue

mg/l Cl-

0.2 Chlorine residue

mg/l Cl-

0.2

Calcium sulphate

mg/l CaS4O

100 Calcium sulphate

mg/l CaS4O

ELITE STEAM models

Conductivity μS/cm

Steam Cylinder

DS25, RS25, DS25LC, RS25LC, DS35, RS35

300-1250

35-14

DS25, RS25, DS25LC, RS25LC, DS35, RS35

125-500

35-15

DS15P, RS15P, DS15, RS15

125-1250

15-14

DS20A, RS20A

300-1250

20-14A

DS20A, RS20A

125-500

35-14

Fill valve and filter

Fig. 3.g

Extension tube

Water drain outlet

3.3.1 Water Characteristic Requirements The humidifier must be supplied with water with the following characteristics:

• pressure between 20psi and 110psi or 0.1 and 0.8 MPa (1 and 8 bar)

• temperature between 33°F and 104°F or 1°C and 40°C

• flow-rate minimum of 0.45 L/min or 0.21gpm

• hardness no greater than 40°fH (equal to 400 ppm³ of CaCO), conductivity: from 125 to 1250 μS/cm

• absence of organic compounds

• the characteristics of the water of supply must fall within the following limits:

LIMIT VALUES FOR LOW SALT CONTENT WATER LIMIT VALUES FOR LOW NORMAL WATER

Units Min Max Units Min Max

Total dissolved solids (c R) mg/l (*) (*) Total dissolved solids (c R) mg/l (*) (*)

Tab.3.d Tab.3.e (*) Values dependent on the specific conductivity: in general: cR~=0.65*σR, 20°C; R180~=0.9*σR, 20°C Note: There is no relationship between the hardness and conductivity of water.

Water Conductivity must be matched by specifications of the steam cylinder. Check or know the water conductivity of the proposed site before installation. Replace the steam cylinder before startup if not correct. See Table 3.f right.

Tab.3.f

The following water types are not acceptable:

1. Softened water as this will lead to foam, electrode corrosion and greatly shortened cylinder life.

2. Water containing disinfectants or corrosion inhibiters, as these are potential irritants.

3. Industrial water, boiler water or water from cooling circuits.

4. Any potentially chemically or bacteriologically contaminated water.

5. Heated water.

3.3.2 Water Supply Connection We recommend the connection between the fill valve and the water supply line by a soft poly hose capable of absorbing the water hammering in order to avoid damage to the fill valve itself. The water line may be routed through the back or through the bottom of the unit. With poly tubing, a tubing support must be used to prevent tubing collapse and leaks. The fitting then threads onto the fill valve inlet located on the bottom of the humidifier using a 3/4” G connection. Note that there is a strainer built

into the fill valve fitting underneath the unit, which will require periodic cleaning, so be sure to allow clearance for access.

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

Fig. 3.h

Water drain

3.3.3 Water Drain

Airflow 1000 cfm min.

Airflow

Min 8”

Height >8”

Airflow

1000 cfm min.

1/3 Height

Airflow

1000 cfm min.

8” min

24” min Upstream

36”min Downstream

Millimeters

Inch

50 mm

1.96”

56 mm

2.20”

100 mm

3.93”

22 mm

0.86”

∅ 30 mm

∅ 1.18”

12 or 22 mm

0.47 or 0.87”

Fig. 3.j

Important: Do NOT install into duct that has interior insulation.

Air Brake

Figure 3.h.2.

The Elite Steam also requires a connection to a drain. The drain line may be routed out the back or bottom of the unit using the included angle fitting. The drain line can be 1-1/4” PVC, CPVC or polypropylene. The drain line is not glued or otherwise attached to the humidifier so it must be supported by itself. A coupling should be used. The Elite Steam includes a drain tempering valve that runs whenever the drain pump runs and flushes cool water into the drain line to insure the drain water temperature never exceeds 60°C or 140°F. The drain water characteristics are:

• Drain Flow Rate – See Technical Specifications (Section 8 / pg 24)

• Connection 32mm or 1 1/4”

• Temperature 60°C or 140°F

min. 5°

NOTE: Drain line must be trapped under the unit to prevent flash steam from condensing in

the unit cabinet, as seen in figure 3.h.2.

3.3.4 Drain Connections When using a rear outlet drain passing through drywall, we suggest using a 1 1/4” extension tube type SJ (see Fig. 3.f). When using a bottom outlet drain, attach the included 90° fitting to the drain outlet. The drain outlet may be rotated. Then connect a 1 1/4” trap adaptor to connect to drain pipe.

IMPORTANT WARNING: The drain pipe must be free without back pressure. We recommend an external anti-flooding device not supplied to protect from faults of external hydraulic circuits.

3.3.5 Condensate Pump When using a Condensate Pump, ensure pump selected is capable of handling 7.0 GPM for up to 10-15 seconds.

3.4 Steam distribution

3.4.1 Duct steam injection (Additional kit required) The maximum allowed duct static pressure is 2 in WC.

The Elite Steam duct injection models include a plastic duct injection nozzle. See Fig. 3.i

A 31.5 mm 1.24”

D 57.5 mm 2.26”

∅ 8 mm ∅ 0.31”

∅

Fig. 3.i

Important: Do NOT install into duct that has interior insulation.

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

3.4.2 Duct Distri bution (Additional kit required) If a duct steam distribution nozzle is to be used, select an accessible location on the duct, allowing at least 36” of straight duct (no elbows or obstructions) after the point where the nozzle will be installed and the clearances can be maintained as per the following drawings. See Fig.3.j To mount the steam nozzle, cut or drill a 2-1/2” hole in the duct. Apply caulk to the mounting plate of the nozzle. Attach the nozzle to the duct using 4 #10 sheet metal screws (supplied). Nozzle must be level or vertical with condensate outlet to the bottom. IMPORTANT: Allow 1 M (3 feet ) of straight duct downstream of the distributor pipes and no z z les for absorption of the steam. Always allow 0.6M (2 feet) of straight duct upstream of the distributor pipes for evaporation of the steam. Turbulent air flow may require longer lengths

Optional stainless steel duct distributor pipe:

Fig. 3.j

To install the distributor pipes:

1. Cut a round hole in the side of the duct to match the steam pipe and condensate return.

2. Apply silicone sealant to the mounting plate and inser t the pipe through the hole and secure it with sheet metal screw s. See F ig. 3.k

3. Connect the steam and condensate hoses using the hose cla mps suppl ied. (Note: end support bracket supplied only with 36” and longer distributors.)

3.4.3 Return Condensate Connection

The return condensate hose from the nozzle, etc. must be trapped. Coil the hose into a vertical loop and secure it below the nozzle, etc. This trap prevents steam from being released into the cabinet. The hose end may be run through the knockout at the top of the humidifier and be inserted into the hole located on top of the fill cup. The hole may be enlarged to suit. See Fig.3.l.

25-12 STEAM CYLINDER HOSE ADAPTER

Fig. 3.l

3.4.4 Steam Hoses

IMPORTANT WARNING: NINETY PERCENT (90%) OF ALL OPERATION PROBLEMS ARE CREATED BY IMPROPER STEAM PIPING FROM THE HUMIDIFIER UNIT TO THE DUCT DISTRIBUTOR PIPES.

To avoid these problems, remember one simple fact when running the steam hose: steam naturally flows up hill, and condensate naturally flows downhill. Run the steam hose or piping to avoid any kinks, sharp elbows, or low spots that could collect or restrict the flow of steam to the distributor pipe, or the flow of condensate back to the humidifier. Support the hose adequately to avoid sags. The following diagrams are to provide you with some guidelines. If you have a situation you are unsure of, please contact the factory for instructions .

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

20%

YES

≥20%

Millimeters

Inch A 150 mm

6”

1800 mm

72” C 600 mm

24” D 2100 mm

84”

Fig. 3.n

IF NO TRAP

1,5 m (5 FT max.)

WITH TRAP

1,5 m (5 FT max.)

IF NO SLOPE

20%

0,9 m (3 FT max.)

3 m (10 FT max.)

1,5 m (5 FT max.)

20% 20%

SUPPORTED STEAM HOSE

AND/ORCOPPER PIPE

NOTES:

• SLOPEPIPING UPIN DIRECTION OF STEAM FLOWAT 20% OR GREATER, WHICH MEANS 65,5mm x305mm (2 1/2” PER FOOT);

• SLOPEPIPING DOWN IN THE DIRECTION OF STEAM FLOWAT 5% OR GREATER, WHICH MEANS 20mm x 305mm (3/4” PER FOOT);

• MAX. LENGTH OF RUBBER STEAM HOSE IS 3 m (10 FT).

• HEIGHT OF P-TRAPSMUSTBE GREATER THAN THE D UCT STATIC PRESSURE.

NO SLOPE

KINKED

GENTLE BEND

OBSTRUCTION

SAG

NO TRAP

DRAINS

P - TRAP NOTE: HEIGHT OF TRAPSMUSTBE GREATER THAN THE DUCT STATIC PRESSURE

NO SLOPE

UNDRAINED

ELBOW

TYPICAL INSTALLATION

WHEN UNIT IS ABOVE

THE DISTRIBUTORPIPE

DRAINS

UNDRAINED

ELBOW

NO DISTRIBUTION

PIPE DRAIN

Fig. 3.m

IMPORTANT: Maximum length of rubber steam hose is 4m (12 feet.). Insulated copper tubing may be up to 6m (20feet) in length. In all cases, minimize sharp bends and elbows. Use 2 - 45° elbows instead o f 90°s.

Hose inner diameter = 7/8” (22 mm); Hose outer diameter = 1-1/4” (30 mm).

3.4.4 Remote Mount Blower Remote Mount Blowers, are used to distribute the steam directly into the room. The drawings show the minimum recommended distances to avoid the flow of humidified air from coming into direct contact with persons, lights, electrical appliances, and surfaces before the steam has been totally absorbed by the environment. For further details on the assembly, the electrical connections and the use of a Remote Mount Blower, please refer to the specific instruction manual.

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

Tab. 3.g

Fig. 3.o

Fig. 3.q

L1 L2

Fig. 3.r

Fig. 3.t

Fig. 3.u

Fig. 3.v

3.5 Power wiring

Check that the power supply voltage to be connected matches the value indicated on the rating plate inside the electrical panel.

Insert the power and ground connection cables into the ele ct rical panel co mpart men t using the strain reliefs supplied, and connect to the terminals. An external fused disconnect must be installed. See Fig. 3.o

All wiring must be in accordance with local, state and national electric codes. NOTE: to avoid unwanted interference, the power cables should be kept separate

from any control wiring.

NOTE: Tolerance allowed on main voltage =-15% to +10%.

Fig. 3.p

Connect power wires to the power terminal block located at the bottom left of the control module, polarity does not matter. See Fig. 3.p Connect the ground wire to the unit’s chassis ground, located just behind the power wiring terminal block. See Fig. 3.q

Model

DS15 110V ac 50/60Hz 5.5 2.5 1.80 16.40 AWG10 RS15 110V ac 50/60Hz 5.5 2.5 1.80 16.40 AWG10 DS35 230V ac 50/60Hz 12 5.4 3.89 16.95 AWG10 RS35 230V ac 50/60Hz 12 5.4 3.89 16.95 AWG10

Power supply

(single phase)

Steam Output

(lbs/hr)

Steam Output

(kg/h)

POWER

(kW)

CURRENT

(A)

EXTERNAL

POWER WIRES

3.6 Control wiring

Elite Steam allows connection of any simple or automatic humidistat, and safety devices such as high-limit humidistat, air flow proving switch, and remote on/off. The humidifier is operated by the closing of a mechanical humidistat H, or by the closing o f a voltag e-free remote contact, or alternatively by a combination of both. The most common is a combination of a humidistat and pressure switch. The diagrams in the figures show the connections to be made on the terminal block, in case of: Fig. 3.u Operation performed by a simple enabling contact; Fig. 3.t Operation controlled by an external mechanical humidistat; Fig. 3.v A combination of both humidistat and pressure switch (most common). Contact AB-AB:

• closed: humidifier enabled to produce steam (production starts when humidistat closes);

• open: steam production is immediately stopped.

The remote on/off contact is usually a series of external potential-free contacts that

Fig. 3.s

enable the humidifier to produce steam when all of them are closed, indicating the

duct/AHU is ready to accept steam. Connect the 12500 Pressure Switch NO and C terminals to the AB-AB contacts. For example,

• fan contact closes when fan is running;

• downstream cooling coil contact closes when coil is off;

• etc. Contact IN-GND:

• closed: steam production starts if contact AB-AB is closed

• open: steam production is stopped after 5 sec.

EXTERNAL FUSE (A)

OR BRAKER

25 25 25 25

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

N2 GND N1 AB AB GND

NO C NC

C NO

GND 24V

AC L

AC N

HUM

SNSR

OUTDOORTEMP. SENSOR (not used in manual mode)

Elite Steam

ON DIP

1 2 3 4

ADCD

DIP SWITCH SETTNGS

FOR HUMIDISTAT ONLY OPERATION

ON OFF OFF

Fig. 3.w

Fig. 3.x

3.6.1 Connect the GFX3 Humidistat for On/Off Operation:

1. Remove the humidistat from the base, squeeze the louvered base at the top and bottom. To remove the humidistat from the wall, lift up on the humidistat and pivot top away from wall.

2. Before wall mounting, please remove the black foam gasket.

3. Before return air duct mounting, please remove the breakout piece.

4. If return air duct mounting, route wires between humidistat and base.

5. Mount the sensor outside the house. Do not mount on South side of the house or in direct sunlight. Place at least 4 feet away from any exhaust vent. If in air intake, place 1 foot or closer to outside wall. Place at least 6” higher than possible snow. Do not route sensor wire near high voltage wires.

6. Connect the GND-IN terminals on the humidifier to the HUM terminals on the GFX3 Humidistat. Connect the GND-24V terminals to the ACL-ACN terminals on the GFX3 Humidistat. see Fig.3.x

3.6.2 Modulating Operation

Connect an external 0...10 Vdc modulating input between terminals IN-GND. Connect any Safety Switches (high-limit, air flow switch, remote on/off) in series to terminals AB-AB. If no safety switches are used, then a jumper must be installed between AB-AB. DO NOT

PRESSURE SWITCH

apply any voltage to AB-AB.

3.6.3 Connect the GFX50 humidistat for Modulating Operation

To select signal modulating see Fig 3.y Connect the power supply to the GFX50 G and G

EXTERNAL REGULATOR

O terminals, using the terminal GND and 24V on the Elite Steam. Note MODULATING OPERATION requires a change in signal type. See SEC. 5.1.1 page 19.

Connect an external signal to the AOUT in

GFX50.

GFX50 using the terminal IN from the Elite Steam and

See the diagram below.

GFX3 HUMIDISTAT GFX50 HUMIDISTAT AIR CONDITIONER RELAY INTERLOCK

3.6.4 Safety and High Limit Switches

Remove the jumper between terminals AB-AB and connect any simple high-limits, air flow switch, 12500 pressure switch, and remote contacts in series to terminals AB-AB; otherwise, if no such dry contacts are available, the jumper must remain in place between terminals AB-AB. DO NOT apply any voltage to AB-AB. Thread the control wiring through the bottom of the unit, and the strain relief (see photo at top of previous page), and then up the side of the control module to the top right wiring terminal blocks. Connect the control wiring to the control wiring terminal blocks found at the top right side of the control module.

3.6.5 Air Conditioner Relay Interlock

Auxiliary DPDT safety relay: Use this method in the following situations:

1. To prevent the air conditioner from running when there is a call from humidity. The DPDT relay will open the “Y” circuit and close the “G” circuit for operation while a call for humidity is present. Demand for humidity will override call for cooling.

2. In systems using a thermostat where G and Y are a single circuit. The DPDT relay will allow blower operation to occur without back-feeding the compressor. Do not use this method when simultaneous humidification and cooling will be desired. Use a high limit humidistat in to avoid condensation in ductwork. The humidistat should be set to OFF during the air conditioning season if humidification is not desired.

For variable speed or DC systems, consult furnace manufacturer

Elite Steam +030222075 Rev. 4.0 – 2 Mar. 2015

Fig. 3.y

Fig. 3.z

+ 33 hidden pages

GeneralAire Elite Steam User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual