Devatec ELECTROVAP RTH-LC Series User manual

Photos non contractuelles

RTH tech. Can Eng Rev2.2

25-10-2010

R

3

ElectroVap RTH-LC

Contents

Certificate of compliance 4-5

Product accreditation 6

Safety information 7-8

Unit wall installation

Dimensions 9

Water connection 10

Steam outlet 11

Condensate draining 12

Steam distribution pipes 13

Steam pipe positioning 14-18

Fan distribution unit 19

Electrical installation

Electrical tables 21

Electrical wirings 22-23

Control connection 24

Connecting options 25

Wiring diagrams 26-27

Software assistant

Front panel indentification 28

Starting up 29

User information menu 30-31

Humidifier status menu 32

Changing parameters menu 33-34

Alerts and warnings 35

Maintenance

Steam boiler maintenance 36-37

Valve maintenance 38

Split views and component parts 39 to 44

Follow-up & maintenance sheet 45 to 47

6

Product accreditation

ElectroVap RTH-LC

DIRECTIVE APPLIED

The humidifier complies with :

NF EN 61000-6-3, EN 55022 classe B

NF EN 61000-4-3 10V/m, NF EN 61000-4-6 10V, NF EN 61000-4-4, NF EN 61000-4-5,

NF EN 61000-4-2

Manufacturer’s name & address

devatec

Rue Feu St Eloi

F-76550 Ambrumesnil

France

Representative

TYPE OF EQUIPMENT

ELECTROVAP RTH

MODEL NAME AND SERIES

RTH

YEAR OF MANUFACTURING

2007

We the undersigned, hereby declare that the equipment specified above complies with the above-

mentioned Directive(s) and Standard(s).

Mr FRAMBOT Jean-François Signature:

General Manager

Date: 02.07.2007

7

ElectroVap RTH-LC

Safety information

I

MPORTANT

This manual should be read thoroughly before specifying, designing, installing or operating

a Devatec ElectroVap RTH system. Please retain for reference and should you have any

question, please contact one of our authorized dealers.

WARNINGS & SAFETY SYMBOLS

Warning : This symbol is used to designate a danger of injury or potential

damage to the system.

Caution : High voltages are present inside the humidifier. All works concerned with the

electrical installation must be carried out by skilled and qualified personnel

Caution : Danger of scalding ! The ElectroVap RTH generates steam during operation and

therefore, surfaces and pipe-work become very hot. Ensure that equipment not sustaining

high temperare be kept away.

Take care : the end user should ensure that the equipment be disposed of according to the

prevailing regulations.

DELIVERY & STORAGE

Any loss or damage during delivery should be reported to carrier by registered letter within 3 working days

and be advised to Devatec or the authorized dealer.

It is recommended that the ElectroVap RTH humidifier be kept in its transit packaging for as long as possible

prior to maintenance. If the humidifier is to be put into storage prior to installation, it must be stored under co-

ver and protected from physical damage, dust, frost, rain and humidity. More than 6 months storage is not re-

commended.

ElectroVap RTH-LC

Safety information

IMPORTANT

This section should be read carefully to ensure the safe and correct installation of your humidifier.

GENERAL

This manual contains all details necessary for the planning and installation of the ElectroVap RTH humidifier.

In addition commissioning and maintenance details are included.

The manual is intended for use by engineers and properly trained technical personnel. Maintenance, servic-

ing or repair work must only be carried out by suitable skilled and qualified personnel, the customer must be

responsible for ensuring their suitability.

Any risks or hazards, especially when working from ladders or towers should be identified by a skilled and

Health and Safety representative and effective control measure put in place.

No liability will attach to the Distributor if any damage, injury or accident is attributable to inattentive, inappro-

priate, negligent or incorrect operation of the machinery whether or not caused deliberately. Always isolate

all electrical and water supplied before commencing any maintenance.

Every effort has been made to ensure details contained in this manual are correct, however, in view of the

wide range of conditions experienced in air handling systems, the information provided should only be used

as a guide. Please contact your Agent if any doubt.

CORRECT USE

ElectroVap RTH humidifiers are ONLY intended for use with air handling systems or direct air humidification.

ANY OTHER APPLICATION IS NOT CONSIDERED USE FOR THE INTENDED PURPOSE. THE MANU-

FACTURER CANNOT BE MADE LIABLE FOR ANY DAMAGE RESULTING FROM INCORRECT USE.

WATER

ElectroVap RTH humidifiers are designed to be used with mains, demineralized R/O (minimum 30 μs) or

softened water. On no account attempt to introduce any other fluid or chemical into the system. Water sup-

ply should not exceed 6.0 bar and installation should comply with local regulations.

ELECTRICITY

All work concerned with electrical installation MUST only be performed by skilled and qualified technical per-

sonnel (eg electrician or technicians with appropriate training). The customer MUST be responsible for en-

suring their suitability.

It is the duty of the installer to ensure that suitable sized cables and MCB protection is provided. Please ob-

serve the local regulations concerning the provision of electrical installations. The humidifier MUST be con-

nected to earth.

WARRANTY

A warranty term is applicable to the parts of the RTH humidifier to the exception of the valves and the heating

elements provided our recommendations of use & maintenance have been adhered to. Failure to specify and

fit original parts and accessories will invalidate our warranty.

NOTE

Our policy is one of continuous research and development. We therefore reserve the right to amend without

notice the specifications given in this document.

The photographs are for illustrating purposes only.

8

9

ElectroVap RTH-LC

Dimensions

Installation

Overall

Dimensions

(mm / in.)

Steam outlet

(mm / in. )

Weight

empty

Kg / lbs

Weight in

operation

Kg / lbs

A 545 / 21.46 1 135 / 5.3 a 135 / 5.3 25 / 55 35 / 77

B 675 / 26.58

C 270 / 10.60

Drain outlet

mm / in.

RTH 3 to 15

A

a

1

C

B

x Unpack the unit and check for any damage.

x Damage to packing and/or unit must be reported by registe-

red letter to carrier within 3 working days.

x Provide free space all around the unit : 1 m. to 1.20 m (3.3 to

4 ft) from the floor, 1.25 m. (4.1 ft) ahead and 0.60 m. (2 ft) on

the right hand side for allowing easy access for maintenance.

x Mark the mounting holes and drill. Insert pegs appropriate for

support.

x Screw the upper screws allowing about 10 mm (0.4") for han-

ging the cabinet. Hang the cabinet and screw the lower

screws. Thighten up all the screws for securing the installa-

tion.

x Ensure that the cabinet is level.

x Please revert to appropriate section of this manual for water

connection.

465mm /

18.3 "

505mm /

19.88"

40mm / 1.57"

4xØ6mm - 0.23" 20mm / 0.78"

110mm

4.33"

525mm /

20.67"

Water supply service

Check valve

Water inlet hose with

3/4"femelle union.

Pictures for illustrating purposes only

A fresh mains cold water service should be used to supply the

unit. The water pressure should be between 1 and 6 bars (15

to 90 psi) & should not exceed 40°C (104°F) in temperature.

The water supply connection is under bottom of the unit. The

humidifier is delivered with a water inlet hose of 50 cm (20") long

with a 3/4" female fitting to the cold water supply. A direct

copper connection is PROHIBITED.

A check valve should be located on the mains and cold wa-

ter service connection to the unit.

The inlet valve base has a basket filter (s.a. page 38).

The RTH humidifier uses water to produce steam so lea-

kage may happen causing potential damage. If an installa-

tion in false ceiling or above prime rooms (such as mu-

seum, exhibition or laboratory rooms) is considered, ensure

that the floor below the humidifier is constructed from wa-

terproof materials (with draining facilities) to withstand any

water spilling during servicing or if a problem occurs.

Information about the water quality : Chloride concentration :

< 75 mg/l ; phosphate concentration : < 5 mg/l ; chlorine concen-

tration (3 to 6° dA) : < 100 mg/l ; poor concentration in CO2 ;

organic elements in poor concentration.

The RTH humidifier can run with the following water qualities :

x Tap or raw water : water TH between 5° and 40° French

grade

x Demineralized water : 30 μS minimum (caution : the de-

mineralized water is corrosive ; use appropriate piping

material : stainless steel, PVC)

x Softened water (TH 0° not recommended) : the cation exchangers (softeners) do not suit for the water

supply as they do not bring down the mineral salt content disolved in the water., the polyphosphate mea-

suring devices as well.

A water softener consists basically in replacing a calcium ion by a sodium ion the solubility capability of which is

about 7 times higher. So a water softener does not affect the quantity of mineral salts contained in the water but

alters their nature.

An excess of sodium chloride may generate foam which disturbs greatly the correct running of the humidifier. It

is essential that a duplex softener be used.

A small volume of tap water must be added to the softened water to get a TH value of 10° minimum and a wa-

ter analysis is recommended to determine the sodium chloride content.

10 Pictures for illustrating purposes only

ElectroVap RTH-LC

Water connection

Unit mounting

11

ElectroVap RTH-LC

STEAM OUTLET

Installation

Use steam hose from our supply.

This steam hose is able to whistand 100°C (212°F)

The humidifier should be located within 3m (9.85ft)

tof he steam distribution pipe. If the distance

from the humidifier is superior to 3m insulated

copper or stainless steel tube should be used.

a. Vertical rise at least 500mm(1.65 ft) before bend

b. The steam hose should be rigidly suported.

c. Steam hose (radius of bend superior to 300

mm - 12")

d. Duct work.

e. Obstacle.

f. A condensate separator is needed at this

point to drain condensate.

g. Steam outlet hose diameter.

h. Ø 8 mm (0.31") condensate hose. Fill with

water the condensate hose siphon before

the first running of the humidifier.

i. Humidifier height (see after page n°6. )

Number of steam outlet :

RTH 3 to 15 = 1 outlet - Ø 25 mm (1")

The RTH humidifier can work with duct pressure less than

150 mm (5.9") water column (1470 Pa - 30.70 lbf/ft2)

For pressure superior to 150 mm (5.9"), our optional

i100 mm diameter mini.

g = Ø25mm (1") RTH 3 to 15

filling cup platform must be used

to drain

Mini . diameter : 4" -

8"

9.85 ft

1.65 ft

3.3 to 4 ft

12

ElectroVap RTH-LC

Condensate draining

Installation

10°

Evaporisation

320mm-12.6"

800mm-31.5"

The following drawings show the

water draining connections that should

be made.

1. The Devatec supplied steam hose

should be used :

RTH 3to 15:1.0m (39.37")Ø25mm (1")

hose with 1 hose clamp.

This hose is designed for connecting the

humidifier to the drain. Regular replace-

ment is recommended.

2. If rigid piping is used, it must be heat

resistant PVC material (100°C-212°F)

3. The drain hose must be free from any

obstacle particularly when it comes to

connecting several units.

4. It is recommended the use of offset

tundish from the underside of the unit

as shown. This will prevent any steam

and/or condensation from getting into

the cabinet.

5. A funnel can also be used provided it

is offset from the underside of the

humidifier and that a siphon is made

as per the diameter of the draining

hose.

6. Important : keep a minimum pitch of

10°

Beware of steam !

Ø100mm mini

Ø60mm

mini

Open tundish Waste water tundish

with cover & handles

4"

13

ElectroVap RTH-LC

Steam dispersion pipe

Installation

The steam from the boiler enters the

duct or an air handling unit via a steam distri-

bution pipe.

In order to obtain the optimum perfor-

mance of the humidifier, select the longest

pipe.

ExpressPack

Steam dispersion pipe

Steam distribution

pipe for

RTH 5 to 20

L1

mm - in.

D40 -L290 290 - 11.42

D40-L5 590 - 23.23

D40-L790 790 - 31.10

D40-L1000 1000 - 39.37

D40-L1250 1250 - 49.21

D40-L1500 1500 - 59.05

Steam distribution selection table

Ø25 mm - 1"

Ø8-0.31"

ExpressPack

L1

The Armstrong ExpressPack is a

bespoke steam humidification system made

to suit your configuration and ready to install

in a ventilation duct.

It permits to have vapor trails

(absorbing distances) as short as 600 mm.

(23.6"). For further reference, please contact

Devatec or their authorized agent.

14

ElectroVap RTH-V2

Steam pipe positioning

Installation

Absorbing distance or vapor trail « D »

A certain length is required so that the steam coming out of the steam distribution pipe be absorbed by the

air. All along this length described as the absorbing distance, the steam can still be seen in the airflow as a mist

which can condensate in water against any obstacle if placed within. To prevent condensation, this absorbing

distance should be calculated before positioning the steam distribution pipes.

How to calculate the absorbing distance « D »

In order determine the absorbing distance, the attached calcalation table can be used :

HR1 = relative humidity of air before humidification in %.

HR2 = relative humidity of air after humidification in %.

D mini = minimum humidification distance in metres (m).

Nota bene: this calculation table is to be used for temperatures between 10°C and 25°C (50°-77°F) only.

Minimal humidification distance

The steam distribution pipes must be positioned after the minimum humidification distance calculated with the

help of the above table..

% RH1 inlet air

5 10 20 30 40 50 60 70

% RH2 outlet air

40 0.9—3 0.8—2.6 0.7—2.3 0.5—1.6 - - - -

50 1.1—3.6 1—3.3 0.9—3 0.8—2.6 0.5—1.6 - - -

60 1.4—3.6 1.3—3.3 1.2—3.9 1—3.3 0.8—2.6 0.5—1.6 - -

70 1,8—5.9 1.7—5.6 1.5—4.9 1.4—4.6 1.2—3.9 1—3.3 0.7—2.3 -

80 2.3—7.5 2.2—7.2 2.1—6.9 1.9—6.2 1.7—5.6 1.5—4.9 1.2—3.9 0.8—2.6

90 3.5 -11.5 3.4-11.8 3.2-10.5 2.9-9.5 2.7-8.8 2.4-7.9 2.1-6.9 1.7-5.6

Minimum humidification distance « D » in m - ft

Before/after fan before/after heater/filter

D D 1,5 x D 5cm

1.96"

2.5 x D before particule filtre

15

ElectroVap RTH-LC

Steam pipe positioning

Installation

A high humidity limit humidistat must be installed in the duct to stop the humidifier in case the level of

humidity exceeds the preset value.

In case the recommended distances can not be observed, please contact Devatec or their authorized agent

for an alternative solution.

If accurate values cannot be reached, a distance of 2 m. (6.5 ft) should be considered as a minimum

distance between pipes & obstruction and 3 / 4 m. (10 / 13 ft) before a humidity sensor or humidistat.

Before a junction before an air opening before a humidity sensor

D

5 x D

0.5 x D

Before / after a constriction before an expansion before a bend

D

0.5 x D

16

ElectroVap RTH-LC

Steam pipe positioning

Installation

11

1

660 mm - 26 " H>

H3

H2

H1

H2

410H > mm

19,61

1

H3

H2

1

H1

11

1

H3

H2

H1

480 mm - 18.9 " H>

550 mm - 21.65" H >

11

1

H1

H2

1

H3

270H > mm

1

H3

8,

5

1

H1

Please meet the following dimensions and spaces according to your configuration. For further

information, please contact Devatec or their authorized agent.

H1 = 110mm (4.33") = Minimum height between the duct floor and the axle of the steam pipe.

H2 = 140mm (5.51") = Minimum distance between 2 steam pipes.

H3 = 160mm (6.3") = Minimum height between the duct top and the axle of the steam pipe.

The H3 distance can be 80 mm (3.15")at the shortest in case the steam pipe is installed at an

angle of 30 to 45°.

The arrow shows the direction of the air flow.

1

0

.

6

"

1

6

.14 "

17

ElectroVap RTH-LC

Steam pipe positioning

Installation

1

D

1

5

°

In vertical ducts where the air flow is upward

or downward, the steam distribution pipes

must be tilted by 15° sideways.

590

47,2

d/2

d

30° à 45°

1

H3

In duct with limited height, the distribution pipe(s) can be tilted

by 30 to 45° to get the 80 mm (3.15") minimum height.

D = Humidification distance

d = Duct diameter

18

ElectroVap RTH-LC

Steam pipe positioning

Installation

Steam pipe above humidifier RTH 3 to 15 Steam pipe under humidifier RTH 3 to15

HumidiPack duct insersion RTH 3 to 15

300 mm– 12" MINI

200 mm—8" MINI

Siphon must be full of water before starting up

A loop having the right diameter may also suit

Condensates

Draining system

19

ElectroVap RTH-LC

Room ventilation unit

x Tow ventilation packs permit the use of the humidifier

in direct in-space applications where there is no duct-

work.

x The ventilation packs cannot possibly be set on the

top of the humidifer (s.a. the left hand side photo).

The distance between the humidifier and the ventila-

tion pack(s) should not exceed 3m (9.85 ft).

x The steam connection between the humidifier and

the ventilation pack(s) is Ø25mm (1").

x The electrical connection of the ventilation packs to

the humidifier is via terminal block 3 & 4 on the Din

rail.

x Allow a 3 m. distance ahead to the humidifier unit(s)

for a free diffusion of steam.

Dimensions of the ventilation packs

CVMC1 CV2

0,50m—2"

3m-9.85ft

maxi

1,2m-3.9 ft

Drain

3m—9.85 ft mini

A B C D E Weight

Kg / lbs dB Max. ouput

Kg/v/h –lbs m3/h Compatible

with model

CVMC1 400mm

15.75"

195mm

7.68"

165mm

6.50"

330mm

13"

35mm

1.38"

4.6

10.14

35

10

22

150

5 ft3

RTH 3 to 10

CV2 520mm

20.47"

260mm

10.24"

350mm

13.78"

360mm

14.17"

80mm

3.15"

12

26.45 38

20

44.10

300

10 ft3 RTH 15

F

35mm

1.38"

35mm

1.38"

Installation

20

ElectroVap RTH-LC

Electrical installation

Recommandations:

All works concerned with the electrical installation must be carried out by skilled

and qualified personnel (eg electrician with appropriate training). The customer

is responsible for ensuring their suitability. Please observe local regulations

concerning the provision of electrical installations.

Check all terminal screws at commissioning, after 50 hours operation and at

every service thereafter.

Caution : the RTH electronic components are very sensitive to electrostatic

shocks. Appropriate steps must be taken before any operation.

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Devatec ELECTROVAP RTH-LC Series User manual

Devatec ELECTROVAP RTH-LC Series User manual

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