Devatec ELECTROVAP RTH-LC User manual

Pictures for illustrative purposes only
R
User manual
Resistive steam humidifier
from 3 to 17 kg/h

2 Pictures for illustrative purposes only
E LECTRO V AP RTH-LC
Contents
Product accreditation 4
Safety information 5-6
Unit wall installation
Dimensions 7
Wall mounting 8
Wall installation 9
Water connection 10
Steamoutlet 11
Condensate draining 12
Steamdistribution 13
Steamabsorbing distance 14
Steampipe positioning 15 -18
Steampipe installation 19
Roomventilation pack 20
Electrical installation
Electrical tables 22-24
Electrical wiring 25-26
Control connection 27
Connecting options 28-29
RTH-LCwiring schemes 30-36
Setting u 37
Software assistant
User information menu 38-39
Humidifier status menu 40
Changing parameters menu 41-42
Alerts &warnings 43-47
Maintenance
RTH-LCsteamtank maintenance 48-49
Valve maintenance 50-51
Split views & component parts 52-57

3 Pictures for illustrative purposes only
E LECTRO V AP RTH-LC
Product accreditation
D IRECTIVES APPLIED
Electromagnetic Compatibility Directive : 89/336/EEC, 2004/108/EC
Low Voltage Directive : 73/23/EEC, 2006/95/EC
« Machinery » Directive: 98/37/EC, 2006/42/CE
The humidifier complies with :
EN 61000-6-3: Electromagnetic compatibility generic requirements (residential, commercial
and light industries)
- EN55022 class B; conducted and radiated emission limits
EN 61000-6-2: Electromagnetic compatibility (EMC) - Generic standards—Immunity for in-
dustrial environments;
- EN61000-4-3: Radiated, radio frequency, electromagnetic field immunity test
- EN 61000-4-6: Immunity to conducted distrubances induced by radio frenquen-
cy fields
- EN61000-4-4: Electrical fast transient/burnt immunity test
- EN61000-4-5: Surge immunity test
- EN61000-4-2: Electrostatic discharge immunity test.
EN60335-1: Low voltage : safety of electrodomestical devices and similar
EN 60335-2-88: Low voltage : safety of electrodomestical devices and similar, concerning
humidifiers
EN 60204-1: Safety of machinery—Electrical Equipment of machines—Part 1 : General
requirements
Manufacturer s name & address
devatec SAS
87 Rue Feu Saint Eloi
76550 Ambrumesnil - FRANCE
Type of equipment Steamhumidifier
Model name & series ELECTROVAP RTH-LC
Year of manufacturing 2007
We the undersigned, hereby declare that the equipment specified above complies
with the above-mentioned Directive(s) and Standard(s).
Name : FRAMBOT Jean-François
Position : General Manager
Date : 05.06.2008
Signature:

4 Pictures for illustrative purposes only
I
MPORTANT
Please read, heed and follow the enclosed safety information and the warning labels
inside the humidifier before installation or maintenance.
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-LC generates steam during operation
and therefore surfaces and pipe-work become very hot. Ensure that equipment not sustaining
high temperatures be kept away.
Warning : the end user should ensure that the equipment be disposed of according to the
local prevailing regulations.
Delivery and 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 to authorized dealer.
It isrecommended that the ElectroVap RTH-LChumidifier be kept in itstransit 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 cover and protected from physical damage, dust, frost, rain and humidity. More than 6
months storage is not recommended.
.
E LECTRO V AP RTH-LC
Safety information

5 Pictures for illustrative purposes only
IMPORTANT
This section should be read carefully to ensure safe and correct installation of your humidifier.
GENERAL
This manual contains all details necessary for the planning and installation of the ElectroVap RTH-LC humidifier. In addition
commissioning and maintenance details are included.
The manual is intended for use by engineers and properly trained technical personnel. Maintenance, servicing 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 attachto the Distributor if any damage, injury or accident is attributable to inattentive, inappropriate, negligent
or incorrect operation of the machinery whether or not caused deliberately. Always isolate all electrical and water supplies
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-LC humidifiers are ONLY intended for use with air handling systems or direct air humidifica-
tion. ANY OTHER APPLICATION IS NOT CONSIDERED USE FOR THE INTENDED PURPOSE. THE
MANUFACTURER CANNOT BE MADE LIABLE FOR ANY DAMAGE RESULTING FROM INCORRECT USE.
Water
ElectroVap RTH humidifiersare designed to be used with mains, demineralized R/O with a minimum conduc-
tivity of 30 µs or softened water. On no account attempt to introduce any other fluid or chemical into the
system. Water supply should not exceed 6.0 bar and installation should comply with local regulations. If the
water pressure exceeds 6.0 bar,a water regulator valve must be used.
Electricity
All work concerned with electrical installation MUST only be performed by skilled and qualified technical personnel
(eg electrician or technicians with appropriate training). The customer MUST be responsible for ensuring their suitability.
It is the duty of the installer to ensure that suitable sized cables and MCB protection is provided. Please observe the local
regulations concerning the provision of electrical installations.
Warranty
A two year warranty term—cost and labor—is applicable to the parts of the ElectroVap RTH-LC to the
exception of the usual consumable parts provided our recommendations of use & maintenance have been
adhered to.Failure to specifyand fit original partsand accessories will invalidate our warranty.
N OTE
The manufacturer’spolicy is one of continuousresearch and development. He therefore reservesthe right to
amend without notice the specifications given in this document.
E LECTRO V AP RTH-LC
Safety information

6 Pictures for illustrative purposes only
1
1
1
1
1
1
A
B
a
C
Overall
dimensions (mm)
Steam outlet
(mm)
Weight empty
(kg) In operation (kg)
A 550 1 140 a 140 25 35
B 680
C 272
Drain outlet (mm)
RTH 3 to 15
E LECTRO V AP RTH-LC
Dimensions

7 Pictures for illustrative purposes only
TAKE CARE :
The humidifier should be installed in a room the temperature of which must be
between 5°Cand 40°Cthat the humidity level should not exceed 80 %.
The rear part of the RTH-LC becomes hot during operation (about 60°C). Make sure
that the surface onwhich the humidifier is installed can sustain hot temperatures.
The devatec steam humidifiers are designed to be installed on wall. Make sure that
the surface the humidifer is hanged on is strong enough.
Install the humidifier at the shortest distance of the steam pipe (s.a. page 13)
whenever possible for best performance.
Arrange position of the humidifier on wall to provide free access for easy maintenance
(see after installation drawings here under).
Remove the blocking ring from the stainless steel cylinder before use.
600 mm
600 mmmini
500 mmmini
1000 mmmini
1250 mm
E LECTRO V AP RTH-LC
Unit wall installation

8 Pictures for illustrative purposes only
E LECTRO V AP RTH-LC
Unit wall installation
467
110
41
40
21 507
525
O
6
4x
NOTA BENE :
Use attachment equipment appropriate to the support.
DETAILA
R
4
R6
10
20
Installation procedure :
Mark the 4 mounting holes and drill.
Insert pegs. Screw the upper screws allowing (diam 6mm) allowing about 10
mmfor hanging the cabinet.
Hang the cabinet and screw the lower screws. Tighten up all the screws for
securing the installation while ensuring that the cabinet is level.
Attachment
point(detail)

9 Pictures for illustrative purposes only
A fresh mains cold water service should be used to supply the
unit. The water pressure should be between 1 & 6 bar & should
not exceed 40°C in temperature. In case the water pressure
exceeds 6 bar, a water regulator valve must be used.
The water supply connection is under the bottom of the unit. The
humidifier is delivered with a water inlet hose of 50 cm long with
a 3/4" female fitting to the cold water supply. A direct copper
connection isPROHIBITED.
A check valve should be located on the mains and coldwa-
ter service connection to the unit.
The inlet valve base hasa basket filter (s.a. page 47).
The RTH humidifier uses water to produce steam so leaka-
ge may happen causing potential damage. If an installation
in false ceiling or above prime rooms (such as museum,
exhibition or laboratory rooms) is considered, ensure that
the floor below the humidifier is constructed from water-
proof materials (with draining facilities) to withstand any
water spilling during servicing or ifa problem occurs.
Information about the water quality : chloride concentration :
< 75mg/l, phosphate concentration : < 5mg/l, chlorine consentra-
tion (3 to 6° dA) : < 100mg/l, poor concentration inCO2, organic
elementsin poor concentration.
The RTH humidifier can run with the following water
qualities :
• Tap or raw water : water TH between 5° and 40° French
grade.
• Demineralized water : 30µS/cm minimum (caution : the
demineralized water is corrosive; use appropriate piping
material : stainless steel, PVC)
• Demineralized water of less than 30µS/cm : for ensuring a cor-
rect water level detection, a special floating water level detection
device must come in replacement of the standard water level
system (s.a. attached picture). This replacement is factory made
when this is specified on the purchase order or a replacement kit
is available for existing humidifiers (caution : the demineralized
water is corrosive; use appropriate piping material : stainless
steel, PVC). Please consult your local reseller.
Water supply service
Check valve
Water inlet hose with 3/4 "
female union.
E LECTRO V AP RTH-LC
Water connection
Floating water level
detection device

10 Pictures for illustrative purposes
E LECTRO V AP RTH-LC
Water connection
• Softnened waters (not recommanded)
A water softener does not affect the quantity of mineral salts contained in the water but alters their nature, the
polyphosphate measuring dev ices as well.
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 softener water to get a TH value of 10° minimum
(however a TH value of 12° is highly recommended). Awater analysis should be made to determine the
sodium chloride content.
Far from what is generally considered, the use of softened waters does not bring down the maintenance fre-
quency. Only the use of reverse osmosis or demineralized water can space maintenance periods significantly.
TAKE CARE : the use of deminerilized water in combination with tap water is strictly prohibited.

11 Pictures for illustrative purposes
1. Use preferably hose from our supply
NB : when brand new hoses are installed, a smell of burning may be smelt during the first
running of the steam humidifier. Thisisnormal and will eventually dispel.
2. Number of steam outlets :
RTH-LC 3 to 15 = 1 x Ø 25 mm
3. The RTH-LC humidifier can be used with pressure ducts(P) having the following characteristics :
•If P is inferior to 150 mm CE (Water column)i.e. 1470 Pa.
•If P is between 150 mm CE and 300 mm CE (2941 Pa.) , our optional filling cup
plateform must be used.
4. Please adhere to the recommendations given underneath for the installation of the steam hose
according to one of the shown examples, the most suited to yourinstallation. A set of hose clampsis
supplied for ensuring a correct installation.
The humidifier should be located within 3 m. of the steam distribution pipe. If the distance is superior
to 3 m. insulated steel or copper pipe of a slightly largerdiameter must be used. It should not exceed
6 m.
TAKE CARE : The steam hose must be kept as tight as possible. If it happens to be pinched or
kinked, this can cause the heating elements to overheat and to be destroyed due to an incorrect
detection of a too low water level inside the cylinder.
Radius of bendfor steam hose :
- Ø 25mm steam hose = 250mm minimalradius
Example a
Example b
E LECTRO V AP RTH-LC
Steam out ut
500 mm min.
500 mm min.

12 Pictures for illustrative purposes
The following drawings show the water drai-
ning connections that should be made.
1. The dev atec supplied steam hose should be
used :
RTH-LC 3 to 15 : 1 m Ø 25 mm hose with 1
hose clamp (supplied).
This hose is designed to be connected to the
draining system. Regular replacement is re-
commended.
2. If rigid piping is used, it must be heat (100°C)
and pressure resistant PVC material and ha-
ve a 100 mm wide diameter.
3. The discharge hose must be free from any
obstacle. It is recommended that each humi-
difier has its own drain pipe and tank arran-
gement in case a number of humidifiers is
installed.
4. Use water tanks with a lid that has water col-
lecting facilities (option on request) (s.a. dra-
wing 1).
5. A funnelcan also be used (s.a. pict. 2), but it
should be offset from the underside of the
unit to prevent any steam and/or condensa-
tion from getting into the cabinet. The instal-
lation of a siphon (as per the draining hose)
is recommended and arrangements for hol-
ding waterspilling should also be made.
6. CAUTION : keep a minimum pitch of 10° for
both the draining & overflow hoses of the hu-
midifier and for general drain pipe (s.a. pictu-
res 1 and 2).
Fig.1
10°
O60mm mini
10°
Pict..2
10°
O 60mm mini
Pciture.1
E LECTRO V AP RTH-LC
Condensate draining

13 Pictures for illustrative purposes
The steam from the boiler enters
the duct or an air handling unit via a
steamdistribution pipe.
In order to obtain the optimum per-
formance of the humidifier, select the
longest pipe.
ExpressPack
Ex pressPack
Steam distribution pipe
Steam distribution pipe for RTH-LC 3 to 15 L
mm
D25 -L290 290
D25-L590 590
D25-L790 790
D25-L1500 1500
D25-L1250 1250
D25-L1000 1000
Steam distribution selection table
Ø 25mm
Ø 8mm
ExpressPack
L
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. For further reference, please
contact devatec or their authorized agent.
E LECTRO V AP RTH-LC
Steam distribution

14 Pictures for illustrative purposes
Evaporation distance or vapor trail « D »
A certain length is required so that the steamcoming out of the steam distribution pipe
be absorbed by the air. All along this length, descrided as the evaporation distance, the
steamcan still be seen in the airflow as a mist which can condensate in water against any
obstacle if placed within. To prevent condensation, this evaporation distance should be
calculated before positioning the steamdistribution pipe.
How to calculate the evaporation distance « D » (FAST METHOD)
In order to determine the evaporation distance, the attached calculation table can be used :
Nota bene : this calculation table is to be used for temperatures between 20°C and 25°C.
HR1 = relative humidity of air before humidification in %.
HR2 = relative humidity of air after humidification in %.
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
% HR2 outlet air
40 0,9 0,8 0,7 0,5 - - - -
50 1,1 1 0,9 0,8 0,5 - - -
60 1,4 1,3 1,2 1 0,8 0,5 - -
70 1,8 1,7 1,5 1,4 1,2 1 0,7 -
80 2,3 2,2 2,1 1,9 1,7 1,5 1,2 0,8
90 3,5 3,4 3,2 2,9 2,7 2,4 2,1 1,7
Minimum humidification distance « D» in m.
Before / after fan before / after heater/filter
D D 1,5 x D 5cm
2,5 x D before thin particule filter
E LECTRO V AP RTH-LC
Steam i e ositioning

15 Pictures for illustrative purposes
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 cannot be met, please contact devatec or their
authorized agent for an alternative solution.
If accurate values cannot be reached, a distance of 2 m. should be considered as a
minimum distance between pipes & obstruction and 3 / 4 m. before sensor or
humidistat.
D
D
5 x D
0,5 x D
D
0,5 x D
E LECTRO V AP RTH-LC
Steam i e ositioning
(continued)
Before a junction before anair opening before a humidity
Before / after a constriction before an expansion before a bend

16 Pictures for illustrative purposes
11
1
1
660H> mm
H3
H2
H1
H2
410H > mm
19,61
1
H3
H2
1
H1
11
1
H3
H2
H1
480H> mm
550H > mm
11
1
H1
H2
H2
1
H3
270H > mm
1
H3
8,51
H1
Please meet the following dimensions and spaces according to your configuration. For
further information, please contact devatec or their authorized agent.
H1 = 110mm = Minimum height between the ductfloor and the axle of the steam pipe.
H2 = 140mm = Minimum distance between two pipes.
H3 = 160mm = Minimum height between the duct top and the axle of the steampipe.
The H3 distance can be 80 mm at the shortest in case the steam pipe is installed at an angle of
30°.
The arrow shows the direction of the air flow.
E LECTRO V AP RTH-LC
Steam i e ositioning

17 Pictures for illustrative purposes
30°
1
H3
1 D
1
5°
In vertical ducts where the air flow is
upward or downward, the steam
distribution pipe(s) must be tilted by
15° sideways.
590
47,2
d/2
d
In duct with limited height, the distribution pipe(s)
can be tilted by 30° to get the 80 mm minimum
height.
D= Humidification distance
d = Duct diameter
(continued)
E LECTRO V AP RTH-LC
Steam i e ositioning

18 Pictures for illustrative purposes
Steam pipe abov e humidifier RTH-LC 3 to 15 Steam pipe under humidifier RTH-LC 3 to 15
Ex pressPack duct insersion RTH-LC 3 to 15
300 mm MINI
200 mm MINI
Siphon must be full of water before starting-up
A loop having the right diameter may also suit.
Conensates
Draining system
Condensates
DRAIN
DRAIN
Condensats
DRAIN
(continued)
E LECTRO V AP RTH-LC
Steam i e ositioning

19 Pictures for illustrative purposes
How to attach the pipe (inside the duct)
O
5
The end of the steam pipe should be attached to the duct with a threaded rod of Ø 5mm
going from the dedicated hole of the fixing plate to the outside of the duct and attached
by a couple of nuts (method 1).A rail attached to the inner side of the duct can also be
used -a 5mm bolt andnut are used to settle the pipe on the rail (method 2).
The steam pipe must be at levelwith the duct.
Threaded rod
Rail
Method 1 Method 2
E LECTRO V AP RTH-LC
Steam i e installation
For ensuring the best steam distribution possible, we would recommend to install the steam
pipes asper the two methods described underneath.
How to install in a duct
Your steam pipes must be screwed onto the ventilation duct by the fixing plate with a setof 4 bolts and
nuts of Ø5 mm. Forensuring airtightness, applya large silicon filmall around the duct installation plate.
The length of the bolts will be according to the thickness of the ventilation duct.
Steam pipe Ø 25mm
84 8
3690
100
140
8124
O
5
4X
38
112
d

20 Pictures for illustrative purposes
3 mètres maxi
E LECTRO V AP RTH-LC
Room ventilation ack
BLOWER PACK
0,50m mini
1m mini
Width Heigth Depth Weight
Kg dB Max. output Kg/h m3/h Steam connection Ø
BP1 260mm 170mm 285mm 2 40 5 53 Ø 25 mm
Dimensions & characteristics
The Blower Pack BP1 permits the use of the humidifier in direct in-space
applications where there is no ductworks.
The Blower Pack BP1 provides an output of 5kg/h.
The direct steam connection to the humidifier is ensured by a Ø 25 mm steam
hose.
The Blower Pack BP1 is energized by connecting it to terminals 3 & 4 of the
humidifier.
Allow a 3 m. distance ahead to the BP1 for a free diffusion of the steam.
For use and installation of the Blower Pack ventilation unit, please refer
to the Blower Pack technical manual available in English.
Blower Pack BP1
Examples of installation
TAKE CARE :
Attach hose on wall before connecting
it to Blower Pack.