Vapac LR10, LR05P, LR05, LR10P, VapaNet Series Operation Manual

These instructions contain operating information and should be left with the unit.

Resistance Heater Units

Installation & Operation Manual

Edition 6

(For use with Software version 8.0 and subsequent issues)

Installation in countries covered by EC Directives:

This product meets the requirements of the RoHS Directive 2002/95/EEC

This product will meet the requirements of the Low Voltage Safety Directive 2006/95/EEC and the

EMC Directive 2004/108/EEC when installed in accordance with the instructions contained in this

manual.

Failure to comply with these instructions may invalidate the manufacturer's warranty or any

certificate/declaration of conformance requested to be supplied with the unit.

CONTENTS

1.0 Installation. ................................................................................................................................ 4

1.1 Positioning the Vapac LR unit ................................................................................................... 4

1.1.1 Vapac LR unit dimension layout ............................................................................................ 4

1.1.2 LR weights ............................................................................................................................. 7

1.2 Positioning the steam pipes ...................................................................................................... 7

1.2.1 General .................................................................................................................................. 7

1.2.2 Steam Hose Connection ....................................................................................................... 7

1.3 Plumbing Considerations. ......................................................................................................... 8

1.4 Electrical Connections .............................................................................................................. 9

1.4.1 Important E.M.C. Considerations ......................................................................................... 9

1.4.2 Power Supply Connection ................................................................................................... 10

1.4.2.1 Volt free alarm outputs ........................................................................................................ 10

1.4.2.2 Unit control terminals ........................................................................................................... 10

1.4.3 Electrical Connections ......................................................................................................... 11

1.4.4 Cable Entry Provision .......................................................................................................... 11

1.4.5 Vapac Control Circuit Transformer ...................................................................................... 11

1.4.6 RDU Connection.................................................................................................................. 11

1.4.7 Cylinder Electrical demand loads ........................................................................................ 12

1.5 Control Circuit Connections .................................................................................................... 13

1.5.1 Control Circuit Wiring .......................................................................................................... 13

1.5.2 Proportional Control ............................................................................................................ 13

1.5.3 Control Signal Selection ...................................................................................................... 13

1.5.4 On/Off Control ..................................................................................................................... 13

1.5.6 Security Circuit / E.P.O. Shutdown ...................................................................................... 14

1.5.7 Load Shed Option................................................................................................................ 14

1.5.8 Master/Slave System .......................................................................................................... 15

2.0 Start-Up / Operation ................................................................................................................ 16

2.0.1 Start-up check list ................................................................................................................ 16

2.0.2 Start-Up Instructions ............................................................................................................ 17

2.0.3 Commissioning/Start-Up ..................................................................................................... 17

2.0.4 Features of VAPANET Resistance Heater Unit .................................................................. 17

2.1 Service Advice ........................................................................................................................ 18

2.1.1 Cylinder Inspection. ............................................................................................................. 18

2.2.1 Feed Valve with Strainer ..................................................................................................... 19

2.2.2 Drain Pump .......................................................................................................................... 19

3.0 Location of Indicators and Controls ....................................................................................... 20

3.1 Positioning of Indicators and controls on Vapac ® Vapanet ® LR Units. ............................... 20

3.2 Initial Set-up ............................................................................................................................ 21

3.3 Normal Run / Standby / Start-up – No User Intervention Required ........................................ 22

3.4 Fault / Service Indications – Requiring Operator Intervention. ............................................... 23

3.4.1 To Postpone the Sevice: ..................................................................................................... 24

3.4.2 To Service the unit: ............................................................................................................. 24

3.5 Other Options .......................................................................................................................... 25

3.6 Use with LRO unit................................................................................................................ 25

4.0 Trouble-shooting Check List ................................................................................................... 26

5.0 Wiring Diagram ....................................................................................................................... 27

Appendix 1.

A Guide to Positioning Steam Pipes: ................................................................................................. 41

Appendix 2.

A Guide to Positioning Multipipes: ..................................................................................................... 43

Important Installation Points

The unit must be installed to comply with national regulations and/or codes of practice. A qualified
electrician must carry this out.

Ensure at least 1000 mm clear front access to the electrical and steam sections of the cabinet.
Do not locate the cabinet where the ambient temperature around the unit could exceed 35ºC or fall

below 5ºC e.g., an unventilated roof mounted enclosure – see minimum space / ventilation
requirements page 5.

Do not locate the cabinet where a ladder is required for service access as this could make
servicing and cylinder service or exchange hazardous.

Make sure steam line(s) have adequate slope (min 12%) for condensate drainage and use
condensate separators if the pipe is lower than the unit.

Provide adequate support to prevent sags developing in flexible steam lines, w hich can fill w ith
water and create a "trap".

Do not locate vented drain directly under the cabinet.
It is important to select the correct water type, see table on page 8, your water supply company

should be able to provide the required information free of charge.

Important Electrical Connection Items

Before commissioning the unit, check that all electrical (power) connections - including those at
the terminals and contactor are tight.

Check that the transformer primary winding connection is correct for the supply voltage at Vapac
terminals A1 & A2.

The Vapac transformer must not be used to power other equipment.
To comply with EMC aspects see recommendations on page 9.
Use a high-limit humidistat to ensure positive interruption of unit operation when over-

humidification is detected (see p14).
It is important that the control signal connected to terminals 5 & 6 must be referenced to ground at

the control PCB – this can be done by linking either terminal 5 or 6 to terminal 7.

NB if the controller output is referenced to ground, it is important that the “leg” which is

connected to ground at the controller is also connected to ground at the Vapac unit. Grounding

the opposite “leg” will cause damage to the controller and/or the Vapac control PCB.

Important Maintenance Items

Only a qualified electrician should carry out maintenance.
The boiler contains hot water, and must be drained before any maintenance is carried out on the

steam section. This should be done prior to isolating the power, and removing the front access
panel

ESD SENSITIVE DEVICES USED ON PCB. ENSURE ANTI-STATIC PRECAUTIONS ARE TAKEN
WHEN REMOVING OR REPLACING PCB’S.

1.0 Installation.

1.1 Positioning the Vapac LR unit

1.1.1 Vapac LR unit dimension layout

Do’s
Do mount the unit as close to the steam distribution

pipe(s) as possible.

Do mount the unit at a height convenient for reading the

display window.

Do ensure adequate side ventilation (min 80 mm).
Do ensure adequate service access to the front of the unit

(min 1000 mm).

Do ensure adequate service access below the unit (min

1000 mm).

Do ensure that the holes in the rear top panel remain

unobstructed to allow a free flow of air see fig 1.

Do use the marking on the side of the carton as a template

to mark the mounting hole positions.

Do remove the cylinder, if necessary, to access the

mounting holes in the back of the steam section.

Do use M6 projecting type wall bolts or equivalent to

mount the unit in position.

Do mount units with RDU’s so that steam pipe discharge is

above head height.

Do leave minimum gap between the top of an RDU and

the ceiling as per table in fig 3.

6

165

Don’ts
Don’t mount the unit close to sources of strong electro-

magnetic emissions e.g. variable speed lift motor
drives, kVa transformers etc.

Don’t mount the unit in an unventilated enclosure.
Don’t mount in a position requiring ladder access to the

unit.

Don’t mount the unit behind a false ceiling or other

situation where an unusual malfunction (e.g. water
leak) would cause damage.

Don’t mount the unit in an area which will be hosed down.
Don’t install the unit where the ambient temperature can

exceed 35oC; or fall below 5oC.

Don’t mount the unit inside a cold-room or other place

where temperature and humidity conditions can cause
condensation on electrical components.

Don’t mount the unit where the sound of a contactor

opening/closing and water flow in a pipe would be

unacceptable e.g. libraries, private apartments, etc.
Don’t position an RDU to discharge directly over
expensive equipment, desks or stored materials

305

6

.

Gland Plate
120 x 120

NB Entry hole for
Gland Plates approx
105 x 90

299

360

55

810

62

186

Steam Outlet

330

165

305

70

520

73555

Wall mounting
fixing centres

D = Drain discharge 35mm pipe.

D

F

F = Water feed ¾” BSP male
connection

Fig 1 LR5 & LR5P to LR 30 &

LR30P units with or without
RDU fitted.

52

90

Fig 2 LR5 & LR5P to LR 30 & LR30P RDU

Within the area of H1 or H2 above the unit nothing must protrude out from the
wall, as this will effect the natural ventilation path of the Unit.

Fig 3 Clearances around LR units.

LR UNIT A B L H min H1 H2
LR5 & LR5P 377 205 80 1000 500 200
LR10 & LR10P 377 205 80 1000 500 250
LR20 & LR20P 435 205 80 1000 500 500
LR30 & LR30P 602 205 80 1000 500 750

Fig 4 LR40 & LR40P to LR 60 & LR60P

610

190

360

55

6

176

346

6

55

360

322

Steam outlet pipes position.

610

990

810

505

190

73555

31.1"(790)

70 850

Gland Plate
120 x 120

NB Entry hole for
Gland Plates approx
105 x 90

152

D = Drain discharge
35mm pipe.

F = Two water feed ¾”
BSP male connection
Note:- RDU units
cannot be fitted to LR40 &
LR40P to LR60 and
LR60P units

20.5"(520)

468

62

FF

D

237

343

343

LR40, LR40P, LR50, LR50P, LR60, and LR60P units
have the same minimum recommended dimension as
follows:

Note:

L, H & H1 refer to dimensions shown in Fig 3 on page 5.

Wall mounting

fixing centres

Gland Plate
120 x 120

NB Entry hole for
Gland Plates approx
105 x 90

L 100

H 1000

H1 600

7

1.1.2 LR weights

The unit dry weight is the delivered unit with no
water in unit, the wet weight is the operational
weight when the unit is running . The RDU weight
must be added to the unit weight if fitted on top of
the Resistive unit.

Resistive model Dry Kg Wet Kg RDU Kg
LR5 and LR5P 34 48 6
LR10 and LR10P 35.5 49.5 10
LR20 and LR20P 39 65.5 12
LR30 and LR30P 40 66.5 14
LR40 and LR40P 72.5 125.5 NA
LR50 and LR50P 73.5 126,5 NA
LR60 and LR60P 74.5 127.5 NA

1.2 Positioning the steam pipes

1.2.1 General

Steam pipes should be positioned as shown below,
allowing a minimum rate of fall back to the unit of
12% to allow the free flow of condensate back to the
unit. If the above fall is not possible, then
condensate separators must be fitted as shown in
figure 1.
The position of the steam pipe or multipipe in a air­conditioning system relative to other items such as
bends, filters, heat exchangers, etc., is critical. The
steam pipe must not be located closer to such item,
than the entrainment distance, and must be decided
by the design engineer responsible for the project.

Do's
Do obtain project engineer's instruction/drawing for

chosen location of pipe

Do obtain project engineer's instruction/drawing for

pipe position relative to the top & bottom of the
duct (or sides if airflow is vertical.

Do check if alternative slope of Ø35mm pipe has

been specified requiring rotation of pipe in its
socket before installation.

Do use bracket/lug on the end of Ø54mm pipes for

extra support.

1.2.2 Steam Hose Connection

Do's
Do use Vapac steam hose or well insulated copper

pipe.

Do keep steam hose as short as possible (under 2m

for max efficiency).

Do arrange to have a vertical rise immediatel y over

the unit of 300mm.

Do use the full height available between the unit and

steam pipe to provide maximum slope (min 12­20% for condensate to drain back to the steam
cylinder (or down to a condensate separator).

Always provide a continuous slope.
Do provide adequate support to prevent sagging
a) fit pipe clips every 30-50cm
or b) support straight lengths on cable trays or

in heat resistant plastic pipe.
Do ensure radius hose bends are fully supported to

prevent kinks developing when in service.
Do add extra insulation to steam hose for longer

runs (2m-5m) and in cold ambient conditions to

avoid excess condensate and reduction in

delivered output.

Don'ts
Don't allow steam hose to develop kinks or sags.

Don't include horizontal runs or 90

steam line.

o

elbows in the

Steam Distribution Pipe requirement

Resistance Heater
Unit Model

35mm ∅ Pipe No.
54mm ∅. Pipe No.
* Duct Pressure Pa. +2000

* For systems with a duct pressure over +1000 Pa. It may
be necessary to fit a suitably sized trap in the water feed
line between the Vapac tundish and the feed drain
manifold to ensure water can enter the cylinder when it is
empty.

LR05
LR10
LR05P
LR10P

1

-

LR20
LR30
LR20P
LR30P

-600

LR40
LR50
LR60
LR40P
LR50P
LR60P

-

1

+2000

-600

Flexible Steam
Pipe.

-

2

No Sags!

Flexible Steam
Pipe.

Distance to first
bend.

R min for 35 ∅ Pipe = 250mm
R min for 54 ∅ Pipe = 500mm

VAPAC
HUMIDIFIER

35 or 54 mm
copper or
stainless steel
steam pipe with
Insulation.

Flexible pipe coupling to
connect Steam pipe to Duct
pipe coupling length to allow
for line movement and
expansion. Coupling clamp
with Hose clips each end.

Fig 6

35mm ∅ Pipe Selection

Duct width

B mm
320-470
470-620
620-770
770-920

920-1070

1070-1200

In-duct Length

L mm

300
450
600
750
900

1050

For guidance on positioning of steam pipes see
Appendix 1.

For guidance on use of Multipipes see Appendix

2.

54mm ∅ Pipe Selection

Duct width

B mm

700-950

950-1450

1450+

In-duct Length

L mm

(Kg)

650 (1.8)
900 (2.2)

1400 (3.2)

8

1.3 Plumbing Considerations.

1.3.1 Cold water supply.

General

The Resistance Heater range of units is capable o f
operating with a range of water quality ra w mains or
de-mineralised/de-ionised. The water supply should
be within the following limits:-

Conductivity 0 – 1000µS
PH 7.3 – 8.0
Silica 0
Pressure of between 1 - 8 bar.
Maximum chloride level 170 ppm

Water Supply rates

1.70 l/min

1.70 l/min

2.00 l/min

2.50 l/min

4.00 l/min

4.50 l/min

5.00 l/min

LR05
LR10
LR20
LR30
LR40
LR50
LR60

LR05P
LR10P
LR20P
LR30P
LR40P
LR50P
LR60P

Do’s
Do install a stop-valve/Shut-off valve and a strainer

close to the unit.

Do provide a water supply with sufficient pressure

and pipe size to ensure an adequate flow rate to
all units connected to the system.

Do use the water connection with nylon nut

provided.

ALL Dimensions in mm

A
B
C
D
F

K
L
M
N

Single Cylinder Units 5-30kg/h

Twin Cylinder units 40-60kg/h

H
G S V

Fig 7

Water type Selected

De-mineralised < 50

De-ionised 50 – 100 < 80

Softened 100 – 200 80 – 100

Potable (Low conductivity) 200 – 300 100 – 150

Potable (Med. conductivity) 300 – 500 > 150

Potable High conductivity > 500

Conductivity

range µS

Max. Chlorine

level ppm

Generally the water type will be selected by the

conductivity levels, however they should be
modified as shown, e.g. conductivity of 75µS and
chlorine level of 85 ppm the correct setting is
Softened”.

Don'ts
Don’t use a wrench or other tool to tighten the water

supply connection - the nylon nut and rubber
washer provided, should only require tightening
by hand to effect a seal. If water seepage occurs,
undo the nut to wipe the washer clean and re­seat it.

1.3.2 Drain connection

General
Do's

Do ensure metal drain and supply water pipe work is

grounded electrically close to the unit (a
ground/earth stud is positioned on the under side
of the cabinet.

Drain capacity per cylinder
= pump discharge rate of max 16.8 l/min at 50 Hz.
Power supply 17.2 l/min at 60 Hz.

Do’s
Do use copper or plastic pipe rated for 100
Do arrange to discharge drain water from the unit

into a trapped and vented drain at a position
where flash steam rising from the drain line vent
will not pose a problem for the Vapac or other
equipment.

Do provide adequate fall for the drain pipework to

allow free flow of water drained from each unit.

Do ensure drain line pipe size will accommodate

water being drained at the same time from all the
Vapac units which are connected to it.

KEY: ­A Tundish Fill-cup

B Steam Cylinder
C Feed Drain Manifold
D Drain Pump
F Feed Solenoid Valve
G Water Connection ¾” BSP.
H Flexible hose ¾” BSP.
K 35∅ Steam Hose coupling and Hose

Clips.

L 35∅ copper or plastic Drain for 110°C

Water with supports.
M Tundish
N U-trap side exit.
S Optional Strainer
V Isolation stop cock

.

o

C.

9

1.4 Electrical Connections

Important Power Connection Information

Vapac 24V and 9 V secondary Transformer Primary supply connections:
Vapac units are wired to allow connection to alternative site Voltages.
Make the following simple checks before connecting the power supply:­Move the RED connection on the VAPANET transformer primary winding circuit to the
position marked with the supply Voltage t hat is to be connected between VAPANET
power terminals A1 and A2.
The transformer primary circuit terminal positions are clearly marked:- 200V, 230V,
380, 415 & 440V. If the actual (measured) site voltage is 400v the preferred

tapping is 380V. The transformer is fitted below the Drain tray, and is accessible by

Note:

24 V a.c. Control circuit -

9 V a.c. PCB Circuit -

Transformer Primary Circuit ­And RDU.

230V ac Pump Supply. -

removing two screws and the cover, which should be slid it towards you.

6.3 A 20 mm (T – Time Lag) fuse (Pt.No. 1080093)
Echelon PCB (Pt.No.1150630).

2 A 20 mm (F - Quick blow) fuse (Pt No. 1080099) mounted on the VAPANET
Echelon PCB (Pt, No. 1150630).

Two fuses protect the control circuit on Single cylinder units F1 2.0A (slow blow)
(Pt. No. 1080095) mounted in fuse-terminal holder protects Primary transformer
and RDU unit if fitted. F2 500 mA 20 mm (F - Quick blo w) fuse (Pt No. 1080054)
mounted in fuse-terminal holder protects Transformer Primary a nd Pump or both
pumps if two pumps are fitted.

The pump or pumps on twin cylinder units are fed from the main transformer via a
230 volt auto winding. The pumps are protected by fuse F1 and F2 above feeding
the transformer primary.

1.4.1 Important E.M.C. Considerations

Use a dedicated, earthed metal conduit for both the
control signal cable and the security circuit cables
along their entire length - they may share the same
conduit where practicable. The earth must be made
by "metal-to-metal" contact and should be a good
RF (Radio Frequency) earth.

The control and security circuit connections should
be run in screened cable with the screen g rounded
at the VAPANET end (onto the electrical section
back panel). The screen should be maintained as
close as possible to the cable ends and any tail
between the screen and the earth point must be
kept short (50 mm maximum).

Control Cable / Security Circuit
Conduit Entry Arrangement

Electrical section metalwork

All metal surfaces which come
into contact with each other,
must be free of paint, grease,
dirt, etc., thereby ensuring a
good low impedance R.F.
(Radio Frequency) path to
ground.

Control Cable / Security Circuit

Cables to control terminals

Outer insulation

mounted on VAPANET

Screening Arrangement

Tail to be kept short
(less than 50mm)

Screen left intact

Earthed back panel

Metal conduit

1.4.2 Power Supply Connection

The unit requires the following connections as shown in
the diagram below

10

1.4.2.1 Volt free alarm outputs

The unit has connections for volt free alarm outputs these
are on the three double terminals next to the main power
input terminals.
The top terminals are for unit volt free fault alarm as
follows:

The bottom terminals are for unit volt free run signal as
follows:

542 common for fault alarm
543 Normally closed when no fault
544 Normally open when no fault

545 Common for run signal
546 Normally closed when unit is in

standby or fault (not running)

547 Normally open when unit is in standby

or fault (not running)

If the unit is part of a master slave system or
network, the run & fault outputs can be selected (via
keypad & display) as either network (system) or unit
only. This is selectable at Service Engineers Level,
in the Engineering Menu, in the window “Fault/Run
Scope”. The default is “network”. It is possible to
get both alarm & Run indication in all units: Single
cylinder units will give this indication if the service
interval has expired; Twin Cylinder & Networked
units will give this indication if the service interval
has expired or if the master cylinder is operating and
any slave cylinder (or cylinders) are in fault.

1.4.2.2 Unit control terminals

For unit control and network termination see
section 1.5 the terminal layout is shown.

11

1.4.3 Electrical Connections

The wiring to the Vapac should be done by a
qualified electrician. The external overcurrent
protection and wiring should comply with the
appropriate Regulations and Codes of Practice

Important: Make sure the connection to the primary
Voltage winding of the Vapac transformer matches
the supply Voltage which is to be connected
between Vapac terminals A1 & A2.If the actual
(measured) site voltage is 400v the preferred

tapping is 380V

.

A fused disconnect/isolator or MCB should be used
to disconnect the supply from all electrodes
simultaneously.

This must be sized to suit the total maximum
phase/line current of the unit and should be located
adjacent to the Vapac cabinet or within easy reac h
and readily accessible.

In Vapac VAPANET units terminals 1, 2 and 3 are
for the power supply connections as indicated in the
diagrams below.

Twin cylinder units’ have terminals for the
connection of two power supply input circuits. On
twin cylinder units’ this allows individual external
protection of each steam cylinder. Fused
disconnect/isolator or MCB provision must be linked
to ensure both 3 phase supply inputs are
disconnected simultaneously.

Notes:-

1. All units must have a PE earth connection connected to the units terminal.

2. Unit with N.A. in the following tables means NOT AVAILABLE there is not a unit available to run at the voltage
and phases shown. Please check that the correct model reference is ordered and installed, for the low or high
voltage required, and at the desired steam output.

3. Standard design is for 50 Hz. Supplies. Design for 60 Hz. Also available - 60 Hz. Supply must be specified with
order as the standard pump is only 50Hz.

FOR FULL ELECTRO-MAGNETIC COMPATIBILITY A NEUTRAL CONNECTION IS REQUIRED FOR ALL
PROPORTIONAL UNITS AS INDICATED IN THE CONNECTION DIAGRAMS ON THE FOLLOWING PAGES.

RDU Connection

The three type’s of RDU are for various voltages and phase without neutrals connections that can be made to the Microvap unit. Please refer
to the Microvap connection diagram on the following three pages as to which type of unit is required. On twin cylinder units two fan circuits as
shown below one for each cylinder will be in the RDU unit.
RDU electrical load

Model RDU05LR RDU09LR RDU20LR RDU30L
Number of fans 2 3 3 5
Fan voltage 230 v 230 v 230 v 230v
Each fan current 50Hz (60 Hz) 115 mA (105 mA) 115 mA (105 mA) 115 mA (105 mA) 115 mA (105 mA)
RDU total load current 50Hz (60 Hz) 225 mA (210 mA) 345 mA (315 mA) 345 mA (315 mA) 575 mA (525 mA)

200 – 250 V 1Ph. N + earth

200 – 250 V 2Ph. + earth

.

1.4.4 Cable Entry Provision

Cable glands must be used to ensure cables are
held securely at the entry position. All Vapac
cabinets are equipped with a removable gland-p late.
The installing electrician should remove this and
take it to a work-bench to drill for the required cable
gland size.

1.4.5 Vapac Control Circuit Transformer

The internal control circuit of the Vapac unit
operates at 24Vac - the transformer secondary is
set at 24V.

As standard the Vapac VAPANET includes a
transformer with alternative primary winding options
200V, 230, 380, 415, and 440V and requires on site
adjustment to match it to the Voltage connected to
Vapac terminals A1 and A2.
The transformer also has a 9V secondary tapping
which provides power to the VAPANET 1150630
PCB.

Important: The Vapac transformer must NOT be
used to power other equipment or the warranty will
be invalidated.

1.4.6 RDU Connection

Vapac terminals 25 & 26 are included to provide a
230Vac electrical supply for the fan motor in the
RDU (Room Distribution Unit) .
Note: The 230Vac at terminals is derived from the
incoming electrical supply to the Vapac. If the local
supply cannot provide 230Vac (example 400V No
Neutral supply) it will be necessary for a transformer
to be fitted in the RDU as indicated below.

380 – 440 V 2Ph + earth

TRANSFORMER
PRIMARY
380 – 440 V
SECONDARY
210 – 250

V

pply

g

r

r

12

1.4.7 Cylinder Electrical demand loads

5 K

/hr Cylinder 10 Kg/hr Cylinde
Voltage V 200 230 250 200 230 200 230 380 415 440
Nominal cylinder size Kg/hr 5 5 5 10 10 10 10 10 10 10
Electrical Supply Ph+N Ph+N Ph+N Ph+N Ph+N 3Ph 3Ph 3Ph 3Ph 3Ph
No. of elements 1113333333
Element Resistance ohms 13.7 13.7 13.7 20.9 20.9 20.9 20.9 20.9 20.9 20.9
Element connection direct direct direct Par/star Par/star DELTA DELTA STAR STAR STAR
Element Matrial

Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800

Full load Current A 14.6 16.8 18.2 28.7 33.0 16.6 19.1 10.5 11.5 12.2
Power rating Kw 2.92 3.861 4.562 5.742 7.593 5.742 7.593 6.909 8.240 9.263
Max. Output Kg/hr 3.96 5.24 6.19 7.79 10.3 7.79 10.3 9.37 11.17 12.56
Fuse Rating/phase A20202032402025202020

Supply cable terminals mm

2

4 4 4 16161616101010

20 Kg/hr Cylinder 30 Kg/hr Cylinde
Voltage V 200 230 380 415 440 200 230 380 415 440
Nominal cylinder size Kg/hr 20 20 20 20 20 30 30 30 30 30
Electrical Supply 3Ph 3Ph 3Ph 3Ph 3Ph 3Ph 3Ph 3Ph 3Ph 3Ph
No. of elements 6666666666
Element Resistance ohms 20.9 20.9 20.9 20.9 20.9 13.7 13.7 13.7 13.7 13.7
Element connection DELTA DELTA STAR STAR STAR DELTA DELTA STAR STAR STAR
Element Matrial

Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800 Incoloy 800

Full load Current A 33.1 38.1 21.0 22.9 24.3 50.6 58.2 32.0 35.0 37.1
Power rating Kw 11.483 15.187 13.818 16.481 18.526 17.518 23.168 21.080 25.142 28.263
Max. Output Kg/hr 15.57 20.59 18.74 22.35 25.12 23.75 31.41 28.58 34.09 38.32
Fuse Rating/phase A40403232326363404040

Su

cable terminals mm

2

16 16 10 10 10 16 16 10 10 10

Resistive unit model reference LR5 and LR5P LR10 & LR10P LR20 & LR2 0P LR30 & LR30P LR40 & LR40P LR50 & LR50P LR60 & LR60P
Cylinder 1 Size Left hand power feed 5 10 20 30 20 30 30
Cylinder 2 Size Right hand power feed None None None Non e 20 20 30
Number of Power supplies to unit 1 1 1 1 2 2 2

Note :- Cylinder 1 power supply equals Cylinder load from table above plus 1amp for control (feed valves and drain pumps ) plus RDU load from 1.4.5 on page 8 if fitted.

13

1.5 Control Circuit Connections

1.5.1 Control Circuit Wiring

Use a dedicated, earthed metal conduit for both the
control signal cable and the security circuit cables,
sharing the same conduit if practicable.

Use screened cable for all control and security circuit
connections to minimise risk of electrical interference.
The screen should be grounded at the VAPANET end
only. See detail on page 7. NB. The control signal
should be connected to ground at the PCB by
connecting either terminal 5 or 6 to terminal 7 –

I

mportant note if the controller output is
referenced to ground, then the “leg” which is
ground must be the one linked to terminal 7.

1.5.2 Proportional Control

The VAPANET Electrode Boiler (LExxP) models can
all be operated by either a potentiometric signal, a
lonworks network signal or by one of 6 standard
proprietary DC analogue signals.

Input signal:
Potentiometric control
0-5V
0-10V
0-20V

(Actually 0-18V – not phase cut)

2-10V

1-18V
4-20mA
Network

Master)

(Ensure jumper J1 is in place)

(Slave unit – demand generated by

Response:
8-100%

1.5.3 Control Signal Selection

Selection of the control signals is done a part of the
initial set-up procedure using the keypad display. For
confirmation that the signal has been selected, view
the information window. If the unit has not got a
keypad then this is done on the configuration board
1150634 mounted on the main control board 115063 0
using the jumpers provided. The appropriate right
hand link should be made to select the site feed water
type and the appropriate left hand link representing
the actual site control signal should be linked using
the jumper plugs provided.

1.5.4 On/Off Control

Vapanet models can be operated by a single
step humidistat which has Volt-free contacts –
select control option Pot.

1

CR1

F2

CR2

UCP
configuration
resistor

NetCR7

J6

CR6

1

16

Vapac PART No. 1150630

J5

CR5

6

1

16

F1

CR2

1

18

CR4

1

Jumper J1
should be
fitted if
control
signal is
4 – 20 mA

J4

16

J3

CR3

J2

J1

10

6

DC 0 - 20 4 – 20 Ma POTENTIOMETRIC
VOLTAGE CURRENT CONTROL
CONTROL CONTROL min. 135 Ohms
Max. 10,000 Ohms

NOTE :- FOR CURRENT INPUT ONLY JUMPER J1 ON THE

1150630 CONTROL BOARD MUST BE LINKED.

Network
or slave

Full o/p

pot

4-20mA

0-20v
1-18v
2-10v
0-10v

0-5v

J1

CR2

1245678

Vapac part no. 1150634

UCP1

9

J2

101112

Electro
boiler

Pot high
Pot medium
Pot low
Softened
De-iron
De-min

HYGROSTAT WITH VOLT FREE CONTACTS (max.
RESISTANCE OF EXTERNAL CONNECTION 100
Ohms.

1.5.5 Sensing Head

The units are designed to operate using a sensing
head, supplied by Vapac Humidity Control Ltd. which
should be connected as shown below. Other

propriety sensing heads which give a DC signal
may also be used, providing the control signal is
connected to control terminals 5 & 6, and the
sensing head is powered externally from the unit.

If “Frost Protection” is required do not connect
the thermistor input from the sensing head to
control terminals 1 & 2, which should be used to
connect the “frost protection thermistor” (part
number 1220275) instead. Frost protection is
selected via the display – Set the frost demand
above the minimum cylinder demand (LE units
>20%; LE(P) & LE(C) units >8%)

Note:

Use of the 24V supply of the VAPANET unit
to power other items of equipment will
invalidate the Vapac warranty.

1.5.6 Security Circuit / E.P.O. Shutdown

As standard units are shipped such that terminals 9 &
10 are provided for connection of an E.P.O.
(Emergency Power Off) switch or fire shutdown
facility. Other control interlocks, such as high limit
humidistat, airflow switch and/or fan interlock and time
switches etc. should be connected to terminals 11 &

12. Please note that if a display is connected to

the unit “DI1 Control Option” must be set to
“Shutdown”.

NB breaking terminals 9 & 10 will prevent any unit
operation including frost protection.

1.5.7 Load Shed Option

This can only be evoked via a display, either “hard
wired” or hand held. When this option is selected,
making the connection between terminals 11 & 12 will
activate the “load shed” software routine, which will
inhibit the operation of either the unit or in the case of
twin cylinder units unit or just the 2
limit the power used during peak supply periods. If
this option is selected, the fan interlock, airflow switch
and/or high limit hygrostat should be wired into
terminals 9 & 10 with the EPO switch if fitted (as per
the drawing on the far right). It should be noted that
selection of this option will mean that frost protection
cannot be utilized.

Please note that if a display is connected to the
unit “DI1 Control Option” must be set to the
following:
Single cylinder units: “Load shed”.
Twin cylinder units: either “Load Shed Cyl 2” or
“Load Shed Both”.

nd

cylinder. This will

14

1245678

Thermistor

Thermistor

+9 Volt

0 Volt Ref.

RH Output

Vapac’s accessory kit part numbers for sensors are
Remote Room mounted sensing head FVKIT-107
And
Remote Duct mounted sensing head FVKIT-108

Standard Operation Load Shed Operation

678

9

121011

5

4

2

1

E.P.O.
Fire Stop

Fan
Interlock

Air Flow
Switch

High Limit
Hygrostat

9

101112

Vapac
HUMIDITY
SENSOR
9 VOLT
POWER SUPPLY
TEMPERATURE
AND
HUMIDITY
SENSOR

124

5

E.P.O.
Fire Stop

Fan
Interlock

Air Flow
Switch

High Limit
Hygrostat

8

7

6

9

111012

Load Shed

NB. The total cable length of the network (using the cable recommended by V.H.C.L. – Our part number 8040251) is 500 m and it should
be assumed that there is 1 m of cable in each unit of the “system” (including the “master”).

15

1.5.8 Master/Slave System

For larger duties, VAPANET “Resistive heater” units can be interconnected and arranged to operate from one proportional signal as a
Master/Slave system. The system allows up to 10 cylinders to be linked in this way. The slave units will all be “on / off” un its. The master
unit, to which the proportional signal is connected, can be “on / off” but will preferably be a “proportional” unit.
To “configure” a system, ensure that the control signal is zero [disconnect the control signal, or switch the units off at the front panel switch].
Press and hold the service pin on the master control PCB, until the user LED’s flash amber, release and check that the LEDs flash
red/amber/green, if not repeat the procedure. Then press the service pin on each of the slave control PCB’s in the order that they are
required to operate, the slave user LED1 will flash Green/amber until it is configured, once the light goes out [or flashes red/off], proceed to
the next slave. If units of different capacity are used, ensure that the master is equal to or greater than the capacity of the slaves, and that
the largest capacity slaves come on before the smaller capacity units]. Once this process is complete, confirm the fact by pressing the
service pin on the master PCB until user LED2 goes green [this step is not necessary if all nine slave cylinders are configured].

USER LED 2

Ø

Network LED
Network Button
USER LED 1

Ö

CR1

FRONT VIEW OF 1150630 BOARD

1

16

V

0V

CR2

Vapac part no 1150631

9V ac Supply

40K 48K

Network Coms,
LED

CR1

Display & Keypad

Net

CR1

J2

J2

1

Network
Button

J1

16

(Optional)

Vapac

xxxxxx xxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxx

Esc

Õ

×

F2

CR2

UCP1
configuration
resistor

PCB for "Master" or
"Slave" unit with display.

J1 see section 1.9.1
Link if control
signal is mA
current only.

J6

NetCR7

AB AB

CR6

1

16

Vapac PART No. 1150630

Customers terminals within unit

located on low volt age rail

18

CR4

J5

CR5

6

1

F1

CR2

J4

16

J3

CR3

J2

J1

10

6

If unit is not fitted
with a display then
UCP1 configuration
resistor is fitted on

1

configuration board
1150634 which is
plugged into CR4
on the master unit.

Connection to

1

Remote Indications
CR6 gives the following remote indications
as Volt-free contacts:
Terminal 547 - Unit Run (normally open)
Terminal 546 - Unit Run (normally closed)
Terminal 545 - Unit Run (Common)
Terminal 544 - Unit Alarm (normally open)
Terminal 543 - Unit Alarm (normally closed)
Terminal 542 - Unit Alarm (Common)

Display if fitted

F2

CR2

PCB for "Slave 1" to
"Slave 9" units.

NetCR7

CR6

1

UCP1
configuration
resistor

J1 see section 1.9.1

J1 see section 1.9.1
Not required forNot required for
slave unit.slave unit.

J6

J5

16

6

Vapac PART No. 1150630

Network Expansion to
slave units 2 to 9 or
other network
components.

CR5

F1

CR2

18

CR4

1

1

J4

16

J3

CR3

1

J2

J1

10

6

16

2.0 Start-Up / Operation

2.0.1 Start-up check list

a) Water supply and Drain Connections:

these should be connected as indicated
under Plumbing and in accordance with the
relevant local regulations. An isolation valve
should be adjacent to the unit. The
connecting metal plumbing must be
grounded close to the unit.

b) Steam Line: This must be connected

according to the installation instructions with
adequate slope and support.

c) Power supply: Wiring to the Vapanet unit

Should be by a qualified electrician and
comply with the relevant regulations using
appropriately sized cable and cable glands,
with disconnect and fuses to suit the
maximum fuse rating of the unit at the supply
Voltage. The disconnect/fuses should be
adjacent to the unit or within easy reach and
readily accessible.

d) Control Connections: Ensure the control

signal and security circuit are
correctly connected according to the relevant
instructions/diagrams.

e) VAPANET 24v / 9V Control Circuit

Transformer: The standard 24V
transformer used in the units has primary
winging for 200V, 220/240V, 380V, 415V, &
440v 50/60Hz connection derived from the
local electrical supply.
Note: 60Hz connection must be specified
with order as 230V 60Hz pump is required.

f) The maximum output & kW rating of the unit

is determined by the number and electrical
rating of the heater elements fitted in the
cylinder. It is not possible to “de-rate” the
unit.

g) Unit Configuration Plug (U.C.P.). Provides

the Vapanet control PCB with information
regarding the “system hardware” i.e. the size
of the cylinder and whether the unit is an
“On/Off” (“LR”) or “Proportional” (“LRP”)
model. It is fitted directly onto the control
P.C.B. If a display is fitted only one resistor
is fitted to the UCP, but if no display is
present additional resistors need to be
present to provide sufficient information for
the unit to operate. If insufficient information
is available the unit will remain in the
“not_config” state until the information is
supplied. This additional information is
provided via the keypad – when the displa y
is fitted.

A brass earth stud is fitted behind the transformer
cover to enable this to be easily completed.

See Page 7 / Appendix 1.

See Page 10/11.

See Page 13.

This is fitted below the stainless steel drain tray. To
gain access, open the front access door, remove the
two M4 screws and remove the transformer cover by
sliding it forward.

Above: UCP1 fitted to Control PCB as if a display is
fitted to the unit.

Right: UCP’s fitted to Configuration PCB Part number 1150634,
as if a display is not fitted to the unit.

Thermistor input from control terminals 1 & 2 (Not shown) are
connected to Configuration PCB CR1.

The Jumper plugs (J1) should be used to select the site demand
signal type (from the following options: 0-5V; 0-10V; 2-10V; 1-18V;
0-20V; 4-20mA

page 13]

quality (from the following options: De-min; De-ion; softened, Pot.
Low; Pot. Medium; Pot. High).

Pot.; Full O/P; Network or Slave.) and (J2) the site water

[jumper J1 on main PCB should also be made – see

17

2.0.2 Start-Up Instructions
First check:

a) That the transformer connection matches supply

Voltage.

b) That the security circuit is closed for unit operation.

Replace the electrical access panel.
Turn on the water supply to the unit.
Close disconnect/circuit breaker feeding supply to the unit.
Close the On/Off switch.
The display (if fitted) will now show the Set-Up procedure.
Follow the procedure by:

- selecting: the preferred language,

- Attaching the control PCB to the Display.

- nominating: the t ype/quality of the supply water.

- nominating: the control sign al (or Vapac sensor when being

used).

When the control signal has been nominated, the Set-Up will be
entered into the memory. The Set-Up can then be checked by
reading the information menu. If an error has been made, it will be
necessary to go back to the Set-up menu. If no display is fitted the
information is set using the jumpers on the small resistor PCB
1150634, fitted to CR4 of the control PCB.

2.0.3 Commissioning/Start-Up

Once the Set-Up procedure has been completed, the unit is
available to operate according to the requirements of the control
signal.
When starting with an empty cylinder, the VAPANET programme
feeds water in until the water reaches the bottom float switch, when
the contactor(s) switch on powering the elements. Thereafter the
VAPANET system will continuously monitor and control the
conductivity by adjusting the amount of water drain ed and fed into
the cylinder.

2.0.4 Features of VAPANET Resistance Heater Unit

The VAPANET system of control is designed to adjust the function
to keep the unit operating in the face of changing water quality in
the cylinder and changing electrode condition even if, in an advers e
operational circumstance, this results in some reduction in output
while the situation exists.

Overtemperature protection.
Should the water supply and the float switch fail, an over
temperature cut-out is fitted to the top of the cylinder. If this
operates, the contactor will open, removing the power to the
elements. This cut out must be manually re-set, by pressing the
small button between the electrical connections.

BE DONE ONCE THE CYLINDER HAS BEEN INSPECTED AND THE
FAULT(S) RECTIFIED.

THIS SHOULD ONLY

Foaming protection *

In particular, the VAPANET is designed to prevent the onset of
foaming and to introduce corrective drainage to keep the unit
working.

*Not applicable to units fed with de-ionised/de-mineralised water.

Automatic switch-off

The VAPANET PCB will stop operating in response to extreme fault
conditions identified as:
Drain Fault STOP (no drain function)Feed Fault STOP (water not
reaching cylinder) In each case, the display will show the STOP
condition and a Help Message, the User LED’s on the fa scia will
indicate the condition see table on page 16. A warning signal will
be available for remote indication. The STOP condition of a
VAPANET PCB will be cleared via the key pad if a display is fitted
or by pressing the reset button on the fascia – the unit should first
be powered down completely (while the reason for the con dition is
diagnosed and rectified).

ONCE THE CAUSE OF THE PROBLEM HAS BEEN ASCERTAINED AND
RECTIFIED.

THIS ACTION SHOULD ONLY BE TAKEN

The transformer is fitted below the stainless steel drain
tray and is accessible by removing the two M4 machine
screws and sliding the cover forwards.

If no security circuit is fitted (i.e. no airflow switch or
high humidity override hygrostat is required) terminals 9
& 10 must be linked.

If no display is fitted, the selections are made by fitting
jumper plugs to the “Configuration PCB” (Part number

1150634). See page 13.

If no display is fitted the “User LED’s” will be the only
indication of a “Fault Condition”. LED 1 (Left hand)
represents cylinder 1 (Left hand when viewed from the
front) and LED 2 (Right hand) represents cylinder 2, if
fitted.
If a fault condition exists, the LED representing the
cylinder which has the fault will glow “Amber” (constant
for drain fault / flashing for feed fault). The unit should
be powered down at the main Isolator once the reason
has been diagnosed, and the problem rectified. When
the power is re-applied, the unit will once again display
a fault indication. To reset the alarm condition the “fault
reset” button should now be pressed (or the “OK” button
on the display keypad should be pressed if a display is
fitted).

18

2.1 Service Advice
After a pre-determined time an alarm warning –

together with an alpha-numeric message – will be
displayed, warning that the cylinder should be
inspected an cleaned as necessary.

Once this signal has occurred, the following service
routine should be undertaken as soon as possible. On
completion of the service, the service interval timer
will be reset, and there will be an opportunity to adjust
the service interval, if the service reveals that the
interval was inappropriate for the operating
conditions.

Service Advice Routine

2.1.1 Cylinder Inspection.

(See figs 1 - 4)
1 ENSURE THAT THE UNIT IS ISOLATED FROM

THE POWER SUPPLY. Then remove the power
supply plug from the fixed socket.

2 Lift cylinder until the bottom (ø 22 mm) spigot is

clear of the feed/drain manifold.NB it may be

necessary to remove the steam hose from the
cylinder, (top) steam outlet spigot, to achieve this.

3 Bring the base of the cylinder forward then allow the

cylinder to rest on the cylinder support ring, then
remove the cylinder.

4 Undo the securing latches, remove the clamping

ring and lower cylinder casing.

5 Empty any loose scale from the lower casing, and

clean as necessary.

6 Inspect the elements, for excessive scale build-up

or damage, and clean/ replace as required -

Should it be necessary to replace elements,
ensure that they are replaced with the same type
and power. Please also ensure that the integral

cables are re-connected exactly as the original.
When disconnecting an element, please note
the points of disconnection.

7 With the lower cylinder casing removed, and access

to the float chamber improved remove the float
chamber by unclipping it from the back panel and
open the housing by removing the two plastic clips
(use a screwdriver to lever these off) & pulling it
apart (see fig 4).

8 Inspect the float switches, and clean/de-scale as

necessary. A build up of scale can prevent correct
operation of the switches, which - in turn - will lead
to operational problems with the unit.

9 Re-assemble cylinder by repeating the above steps

in reverse. To ensure that the cylinder seals
correctly, ensure that the first four clamps that are
tightened, are those at the four quadrants. I.e.
tighten one clamp then tighten the one
diametrically opposite. Then tighten one at
approximately 90
one diametrically opposite. Finally, tighten any
remaining clamps.

o

to them and then tighten the

Fig 1

Fig 2

Fig 3

Fig 4

19

Other Maintenance:

• Should only be carried out by a qualified

electrician.

• The steam cylinder should be drained prior to

carrying out any maintenance in the steam
section – This must be done prior to isolating
the electrical supply, i.e. before removing the
front access panel.

• The unit should be isolated from the electrical

supply before any cover or access panel is
removed.

2.2 Service and Maintenance

As the operation of the Vapac is entirely automatic, it
normally requires no attention on a day-to-day basis.
General cleaning and maintenance of the component parts
of the Vapac are recommended at intervals of about one
year, but this is largely dependent upon the frequency of its
use and the quality of the water supply. Where the Vapac is
part of an air-conditioning system being serviced regularly,
the Vapac should be inspected at the same time.

2.2.1 Feed Valve with Strainer

The nylon bodied solenoid valve incorporates a small nylon
strainer which is a push fit in the 3/4" inlet of the valve. With
a new plumbing installation, residual loose solid material in
the pipework could partially block the strainer after start-up.
If for this or any other reason a restriction of the water flow is
suspected (outside of supply pressure considerations), it
would be possible to clean the strainer as follows:­Turn off the water supply to the Unit.
Undo the nylon nut connecting
the flexible connection to the
valve inlet .
The strainer can be removed
using ‘long-nosed’ pliers to grip
the centre flange provided on
the strainer for this purpose.
Withdraw the strainer.
Wash and replace it.
Reconnect and turn on water
supply.
Reconnect electrical supply to
allow unit to operate.

Note: Always replace the
strainer after cleaning as it is
required to prevent material
lodging in the valve seat or
blocking the small flow control
restrictor which is fitted in the
valve.

Valve with flow

Strainer

restrictor

3/4 Nylon nut with washer as

part of flexible connector

2.2.2 Drain Pump

The pump The pump is a sealed unit
and should not be dismantled.
Instructions for removal / replacement
are as follows

1) Place a bucket below the
pump, to catch any water
remaining in the housing
or pipework.

2) Remove the two screws
holding the pump cover &
lift clear.

3) Undo the three screws
holding the pump body to the
feed & drain manifold, and
remove it - any water trapped
in the pump will be released at
this point.

4) Fit the replacement pump by
following the above steps in
reverse order. Ensuring that the
O-ring surrounding the impeller
Housing is correctly seated, and
That it mates correctly with the
Feed / drain.

Steam and Condensate Hoses

The hoses used with and in the Vapac should be inspected at the normal service visits as part of normal maintenance, At the first signs
of deterioration, a hose should be removed and replaced.

20

3.0 Location of Indicators and Controls

3.1 Positioning of Indicators and controls on Vapac ® Vapanet ® LR Units.

Vapac

Reset Button

Vapac

Esc

Alpha-Numeric

Display

User LED's

Power Available Neon

I
0

1 2

Cylinder 1 On/Off/Drain Switch

Cylinder 2 On/Off/Drain Switch

Network LED (Red)

Network Button
(Service Pin)

Power Available Neon

User LED's

I
0

1 2

Cylinder 1 On/Off/Drain Switch

Cylinder 2 On/Off/Drain Switch

Network LED (Red)

Network Button
(Service Pin)

21

3.2 Initial Set-up
User LEDs

During the initialisation process the User LEDs can be in one of the following
states

User LED State Description

RED Flashing

1

2 second period
RED/AMBER Flashing

2

2 second period

RED/GREEN Flashing

3

2 second period

User LED 1 -

4

RED/AMBER/GREEN
User LED 2 – OFF

User LED 1 & LED 2 -

5

RED/AMBER/GREEN

Unit initialising. If remains in this state, then unit does not a valid UCP1 fitted.

UCP1 valid.

For units fitted with a configuration board, the UCP2 and/or UCP3 are not being detected.

UCP1 valid.

For units fitted with a display, the unit requires site set-up.
This state does not occur if the unit is fitted with a configuration board.

Unit in configuration set-up mode, as instructed from the attached display node.

Invalid configuration UCP2 is not valid.

Prior to the start of the initialisation process, the LEDs will flash Green, Red,

Amber repeatedly for 10 seconds to check that the LEDs are operation

correctly.

Remedy:

1 Check that UCP1 is fitted to plug fitted to CR4 pins 7 & 8 for units with Alpha-numeric

display or fitted to configuration PCB part number 1150634, which is fitted to CR4 if no
display is fitted (see section 1.5.3 of manual for more details). Ensure that good electrical
contact is made in each case.

2 Check that the jumpers J1 & J2 on the configuration PCB are correctly fitted, to select the

site water quality and site control signal (see section 1.5.3 of the manual).

3 Enter “Set-up unit”, enter the “control signal” type and “site voltage”, see Alpha-numeric

display module operating manual.

4 Once the unit has been “set-up” press ok at the prompt “Apply changes are you sure *?*”

when the unit will exit this state.

5 Check that the jumper J2 (on the configuration PCB) is correctly fitted, selecting the

correct site water type (see section 1.3.1 of the “Installation, Operation & Maintenance
Manual”).

22

3.3 Normal Run / Standby / Start-up – No User Intervention Required

Once the unit has initialised User LED 1 refers to cylinder 1, while User LED 2 refers
to Cylinder 2. For combinations of LED 1 and LED 2 being off, RED or RED Flashing
refer to following table.

User LED 1 User LED 2 Description

Cylinder 1 and Cylinder 2 (if fitted) in shutdown.

1 OFF OFF

2 OFF

RED Flashing
Variable Period or ON

3

RED Flashing
1 second period

OFF

Or
Cylinder 1 in standby and Cylinder 2 in shutdown.

Cylinder 1 and Cylinder 2 (if fitted) in standby

Cylinder 1 Online. Cylinder 2 (if fitted) in standby
The variable period is determined by the demand signal for cylinder

1 as follows,

Cylinder 1 demand LED ON RED LED OFF

<12.5% 0.5 seconds 3.5 seconds
<25% 1.0 seconds 3.0 seconds
<37.5% 1.5 seconds 2.5 seconds
<50% 2.0 seconds 2.0 seconds
<62.5% 2.5 seconds 1.5 seconds
<75% 3.0 seconds 1.0 seconds
<87.5% 3.5 seconds 0.5 seconds
>=87.5% ON RED Continually

4 Any RED Cylinder 2 Online

The above are purely indications of the current state of the unit, and require

no action from the operator. When the state changes the indication will

automatically change.

23

3.4 Fault / Service Indications – Requiring Operator Intervention.

User LED State Description

1 AMBER Drain Fault

AMBER Flashing

2

1 second period

AMBER Flashing

3

2 second period

GREEN/AMBER Flashing

4

1 second period

GREEN Flashing

5

1 second period
GREEN Flashing

6

2 second period

7 GREEN Periodic Drain/Periodic Flush/Manual Drain completed.

RED/AMBER

8

1 second period

Feed Fault

Over temperature Fault

Float Switch Fault

Service Interval expired or low output.

Periodic Flush/Periodic Drain/Manual Drain/Auto Flush in progress

Constant Output Active/Full Output via UCP3 (Master cylinder only)

1 & 2 Fault stop: Once the problem has been cleared the fault can be re-set by one of the

following procedures.
i) Units fitted with an Alpha-numeric display: Power the unit right off, using the local
isolator (not the unit on/off switch), waiting ten seconds, then re-applying power. When the
message “Cylinder x drain fault” is once again displayed press the o.k. button, and the unit
will revert back to it’s operational state.
ii) Units not fitted with a display: Power the unit right off, using the local isolator (not the
unit on/off switch), waiting ten seconds, then re-applying power. When the constant amber
“drain fault” indication is showing, press the unit “fault reset” button, which is located on the
fascia above the “Vapac” Logo.

2 High Temperature Fault: When the cylinder has cooled down, investigate the reason for the

“over temperature” condition, paying particular attention to the feed water supply. Manually
drain the cylinder, and carry out a cylinder inspection (see section 2.1.1 of the “Installation,
Operation & Maintenance manual”). When complete, reset the high temperature cut-out on
top of the cylinder and re-start the unit.

4 Float Switch Fault: Will be seen if the top float switch is made, but the lower switch is open.

If seen the float switch and associated wiring should be inspected, cleaned and/ or replaced
as required.

5 Service Interval Expired: Will be seen if the unit has run for a period exceeding the service

interval, which will depend on the quality of the site water supply (see table below).

Water Type Service Interval

Hours
De-min / De-ionised 5000
Softened 2500
Pot. Low 2500
Pot. Med 1000
Pot. High 500

If this indication is seen the cylinder should be inspected as soon as possible

24

If it not convenient to carry out this inspection immediately it is possible to postpone
it for a short time.

3.4.1 To Postpone the Sevice:

Press the reset button once: The appropriate cylinder LED will change to con stant “am ber”
and the external alarm will be reset, allowing the unit to continue to run without an external
alarm for 168 hours run time.

When the alarm is repeated, it should be serviced immediately – and not postponed
further.

3.4.2 To Service the unit:

Press the reset button:

This will cause the appropriate LED to change to constant “amber”, the external alarm to be
reset.

Press the service button again:

(this should be within ten seconds of the first push).

This will cause a “service routine” to be implemented. Once this is complete,

Isolate the electrical supply:
Inspect the cylinder: As described in the maintenance section of the operating and

maintenance manual.
Clean the cylinder: As described in the maintenance section of the operating and
maintenance manual.

Power up the unit:
Press the reset button:

This will cause the appropriate cylinder LED will change to constant “amber” and the external
alarm will be reset, allowing the unit to continue to run without an external alarm for a further
168 run hours..

Press the reset button again:

(this should be within ten seconds of the first push).

This will reset all the relevant timers including the hours run timer.

NB if the button is not pressed a second time then the alarm will only be postponed,
and will quickly return.

5 Event in Progress: This is a transitional state while the unit is actually performing a

particular routine. The LED indication is for information only and requires no user
intervention.

6 Event Completed: If one of the above conditions have been implemented, when it has been

completed, the unit by default will continue to run, however it is possible to change this to
“stop” (via a display either fitted or hand held) if this is the case this condition will be
exhibited, and the unit will not run until the condition has been reset, by either:
i) Units fitted with an Alpha-numeric display: Power the unit right off, using the local

isolator (not the unit on/off switch), waiting ten seconds, then re-applying power. When
the message “event complete” is once again displayed press the o.k. button, and the unit
will revert back to it’s operational state.

ii) Units not fitted with a display: Power the unit right off, using the local isolator (not the

unit on/off switch), waiting ten seconds, then re-applying power. When the constant green
“event complete” indication is showing, press the unit “fault reset” button, which is located
on the fascia above the “Vapac” Logo.

7 Constant output:

i) Units fitted with an Alpha-numeric display: This is another transitional state, and

once the “constant output period” has expired, the unit will revert to normal “controlled”
operation. The LED indication will automatically revert to the cylinder’s “current state”.

ii) Units not fitted with a display: Once the testing of the unit is complete, the jumper J1

on the configuration PCB should be removed from the full output position and returned to
its normal operating position.

25

3.5 Other Options

All selectable via a display (either Hard Wired or Hand held)
Feed With Drain

Used to lower the temperature of the drain water.

Frost Protectiion

When this is activated the unit will operate, at a preset demand level, if the temperature surrounding the unit falls
below a preset level, to prevent the pipework from freezing.

It is enabled by setting “frost demand” (via keypad/display) to >0 (it I disabled by setting “frost demand” to 0).
However the unit will not operate unless “frost demand” is set above the unit minimum demand level. Minimum
demand level for LE units is 21% and for LEP units it is 10%.
Frost demand is fully adjustable between 0 & 50%.

Timed Drain down.

Used to drain all the water from the cylinder if the unit remains on standby for longer than a preset (but adjustable)
time period.

For information on setting these options please see the display manual.

3.6 Use with LRO unit.

For information on setting up a system with a Vapanet Reverse Osmosis unit please see the doccumentation
supplied with the LRO unit.

The following light sequences may also appear on the LR unit fascia if an LRO unit is supplying th e feed water
supply:­User LED 1 Sequence: Meaning:
Amber (off) Green (off): LRO in “Shutd own” Mode (Switched off or EPO/security circuit open)
Amber (off) Amber (off) Green LRO unit not responding. (LR unit “Fault” relay will make).
Amber (off) Amber (off) Amber (off) Green LRO unit in “Fault” condition. (LR unit “Fault” relay will make).

26

U

4.0 Trouble-shooting Check List

Preliminary

Symptom

Power-On Neon – Off
Symbol-LED – Off
Display - Blank

Power-On Neon – On
Symbol-LED – On
Display - Blank

Automatic STOP – Feed Fault indicated on the Display.

Water is not connected
Water connected but not
reaching cylinder.
Water in cylinder and
overflowing.

Automatic Stop – Drain Fault indicated on the display.

Drain pump function impaired

Float switch failure
Cylinder O/Let Blocked

Unit On-Line but inadequate or no steam production.

Contactor not made
MCB’s tripped
SSR’s not switching

Important

Equipment needed

Procedure

SSR Replacement

Possibilities

Possibilities

Possibilities

- Use manual drain option to check pump operation

Check/Cause/Remedy

- Check main power is connected and switched on.

- Check power supply fuses.

- Check if security circuit is open circuit

- Check 24V 6.3A fuse mounted at top of Microvap controller PCB 1150630

- Check water stop valve is open

- Check internal Vapac hose connections for a leak.

- Check float switch operation

- If pump will not function, empty cylinder by disconnecting at the tundish fill-cup the

water supply hose to the cylinder and draining the water into a bucket. Remove,
dismantle and clean pump housing / Replace pump if required.

- Check float switch operation

-

Check & unblock

- Contactor coil, Float switches, Control PCB.

- Cylinder Inspection, inspect elements, and float switch operation.

- SSR Check as described below,

Specialised check of the Solid State Relay

The following check should be carried out by a competent electrician

- An AC Voltmeter, multi-meter set to full AC line voltage or suitable voltage test
instrument.

- Remove access panels from both the steam cylinder and electrical compartments

- Ensure that the humidifier has an operational level of water in the cylinder. Switch

unit on and check that the display indicates “Vapac on line”.

- Apply the voltmeter, set to the ful line Voltage, across the output terminals of the
SSR being tested (i.e. the two terminals carrying the cabling to the elements).

Correct Voltmeter Response – oscillating between full and near zero Voltage.

If Voltmeter reads a constant near zero Volts, Check:
a) T hat the unit is not feeding water – if it is, wait until the feed valve closes and then

re-check. (reason the SSR will hold closed while the feed valve is open).

b) T hat the control PCB is giving the correct pulsed D.C. signal (approx 5V D.C.) to the

SSR control input terminals.

A faulty SSR should be replaced

amperage rating. Disconnect the unit from the electrical supply. Disconnect the
SSR and undo the mounting screws. The SSR is bedded in thermal compound
to assist heat transfer – it is important that this is cleaned off, and a layer fresh
compound placed under the replacement SSR. When it is secured in position.
Reconnect the SSR, reconnect the electrical supply and check the SSR
function as above before replacing the access panels.

Note:

se proprietary thread lockingcompound on the line voltage

Checks

Checks

Checks

with an SSR of the same (or higher) Voltage and

5.0 Wiring Diagram

A4-LZD-549 to 556

CYLINDER POWER DIAGRAMS:-

OF THE FOLLOWING EIGHT

SUPPLY CONNECTION FROM ONE

BLUE

RED

BLUE

or N *

Grey

Blue

26

A1

A3

20

22

F1

2A

230 VOLTS
TAPPING IS A

70 VA Auto wind.

F2

2A

29

22

Red

see note 1

RED

BLUE

H1

27

29

45

440

T1

415
380
230

20

200
115

22

0

24v AC

24 v 50 or 70 VA
Isolated wind

9v AC

0v AC

Pink

NOTE

1. WIRE 29 CONNECTION
ONTO TRANSFORMER TO

32

White

BE CONNECTED ON TO
TAPPING THAT MATCHES

13

K1

14

25

INCOMING SUPPLY EITHER
230 VOLTS 3 PHASE OR

31

Violet

415 VOLTS 3 PHASE

TEMPERATURE
THERMISTOR INPUT
PREFURED TYPE 10K3A1

4

65 21

Red

25 26

RDU SUPPLY OR
REMOTE FAN START

0v AC or DC Supply

9v to 12v AC or DC Supply

NetCR1

v0v

DISPLAY PCB BOARD
Part Number 1150631

CR4

DISPLAY ONLY WIRED
IF FITTED

KEYPAD FOR DISPLAY
Part Number M 300120

V p c

Clear Window
75 x 24

Esc.

2C1 534 67

8

2-Brown
2-Blue

1-Brown
1- Blue

9v AC Fused Supply
0v AC Fused Supply

1

CR6

NETWORK CABLE
NETWORK CABLE

23 89645 7

Part Number 1150630

SEE DRAWING
No. A4-LZD-547
SHEET 2 OF 3
FOR CONNECTIONS
ONTO 1150630
PCB. MOTHERBOARD

FIVE CONTROL TERMINAL
OPTIONS SHOWN

21 87

FOR TERMINALS 1-8

4

CONTROL INPUT
0 - 20 VOLTS J1 OPEN CIRCUIT
0 - 20 mA J1 CLOSED CIRCUIT

182675

4

6752

8

LINK TERMINALS

5 AND 7

1876

LINK TERMINALS

5 AND 7

4

AI 1 ref.
AI 1

0 v DC
+ 5v DC

LINK TERMINALS

5 AND 7

4

AI 1 ref.

521 87 56

AI 1
0 v DC

+ 5v DC

Thermistor
Thermistor

+9v DC

RH input
0 v DC

White
White

Black
Red

J1 CLOSED CIRCUIT

HUMIDITY SIGNAL 4-20 mA

J1 OPEN CIRCUIT

HUMIDITY SIGNAL 0-10 volts

Temp. & R.H. SENSOR

CD
B
A

SIGNAL VOLT

ON OFF CONTROL

CONTACTS OR

VOLT FREE

HYGROSTAT WITH

FREE CONTACTS

IF IN DOUBT ASK

PROPORTIONAL

POT

J1 OPEN CIRCUIT

J1 OPEN CIRCUIT

Grey

BLUE

Humidity Control Ltd.

Vapac

20

22

TO SHEET
2 of 3

Fircroft Way, Edenbridge,
KENT, TN8 6EZ. ENGLAND.
PHONE [phone]

Iss.No. Revision note

2 Terminals 20 & 23 Added Mar 03 RW

3 Brought into line with sheets 2 & 3

TITLE:

VAPAC 1150630 motherboard Main supply
control transformer
and customer control signal inputs

DRAWING No.:

VAPAC SINGLE CYLINDER RESISTIVE
HUMIDIFIER CONTROL FITTED WITH

A4-LZD547

Date Dr'n Ckd.

Jun 04 RPT

DATE :
ITEM REF:
SCALE :

FEB 2002

LR

N.T.S.

SHEET No.
ISSUE :

3

1 OF 3

28

45 Pink

32 White

31 Violet

9v AC Fused Supply

2-Brown
2-Blue

0v AC Fused Supply

SEE DRAWING A4-LZA-547

SHEET 1 OF 3 FOR FEED

CABLE CONNECTION THIS

1-Brown
1-Blue

NET WORK CABLE

A

B

24 Volt AC

9 Volt AC

O Volt AC

SIDE OF DRAWING.

33

35

36

34

Pink

Pink

Violet

Violet

White

Violet

9V ac Input

24V ac supply DO1

24V ac supply DO2

DO 1 CYLINDER 1 CONTACTOR

0V

TOP

F2 9V
2 Amp

Control Fuse

DO 2 CYLINDER 1 WTR SOL.

43512

CR1

CR12

CR10

ANALOGUE INPUT 8

0v COM AI 7

0v COM AI 8

CR8

CR11

Net

J6

6B 4B

43 Pink

44
Pink

J5

NO NC C NO NC C

CR5

12 3 45 6 1 423 56

DO 10 NO

DO 10 NC.

DO 10 Com.

DO 9 NO.

DO 9 NC.

DO 9 Com.

Pink

Run ctl. switch IN

Control Fuse

2345678

ANALOGUE INPUT 6

ANALOGUE INPUT 7

0v COM AI 5

0v COM AI 6

CR7

5B

NO NC C NO NC C

DO 8 NC.

DO 8 NO.

Pink

Pink

24v E.P.O. IN

Run ctl. switch OUT

131110 128769

F1 24V

6.3 Amp

1

CR4

ANALOGUE INPUT 5

Violet 60

DO 7 Com.

DO 7 NC.

DO 7 NO.

DO 8 Com.

Pink

24v E.P.O. OUT

Pink

24V ac INPUT

CR6

Pink

DI 1 LOAD SHED

1614 15

Pink

Pink

J4 J3 J1J2

54 231

CR2

15 14 13 1112 10 9 786

CR3

798 65 3421

10 16

CR9

Earth

Bond

41
42

3A 1A

2A

0v COM DI1 & DI2 Violet
DI 2 CYL 1 UPPER FLOAT Pink
DI 3 CYL 1 LOWER FLOAT Pink
0v COM DI3 & DI4 Violet
DI 4 NOT USED
DI 5 NOT USED
0v COM DI5 & DI6
DI 6 NOT USED
DI 7 Cylinder 1 Cont. HT
0v COM DI 7, 8, & 9
DI 8 FAULT RESET BUTTON
DI 9 NOT USED
AI 4 NOT USED
AI 4 Ref.
AI 3
AI 3 Ref.

THERMISTOR INPUT
THERMISTOR INPUT

AI 2 NOT USED
AI 2 Ref.
AI 1 V or mA INPUT
AI 1 Ref. Violet
Demand POT +5v dc
Demand POT 0v dc Black
DI 5 CYL 1 SSR
+9v dc feed DO 5 Pink
DI 6 NOT USED
+9v dc feed DO 6 Red

ON RUN

SEE DRAWING A4-LZA-547
SHEET 1 OF 3 FOR FIVE
ALTERNATIVE CONTROL SIGNAL
INPUTS ONTO TERMINAL 1-8

OFF

Violet

DRAIN

Violet
Pink

White
White

White

Red

Black

Pink 10
Pink

9

Pink

12

CYLINDER 1
CONTROL
SWITCH

51
52
53
54

57

60
61

1
2

6
5
8
7
67
68

4

1011

E.P.O.

9

CIRCUIT

12

Security/
Load Shed*

* See Man.
Page 14

Violet 60

ONLY FITTED IF
UNIT HAS NOT GOT

A DISPLAY FITTED
THEN RESET BUTTON
IS FITTED ON FRONT
PANEL INSTEAD

6

8752

41

Grey 20
Blue 22

21

22 21

M1

Grey

CYLINDER 1
DRAIN PUMP
240 V

Vapac

Humidity Control Ltd.
Fircroft Way, Edenbridge,
KENT, TN8 6EZ. ENGLAND.
PHONE [phone]

SEE DRAWING A4-LZA-549 TO

546

545

547

UNIT
RUN

CUSTOMER CONNECTION
TERMINALS

543

544

542

UNIT
COMMON
FAULT ALARM

LZA-552 CYLINDER POWER
DIAGRAMES FOR SSR CONNECTIONS

Date Dr'n. Ckd.Iss.No. Revision note

2 TERMINALS ADDED 542 - 547 & A,B MAR 03 RW
3 DI 7 Cyl. 1 contactor Feedback added

TITLE:

VAPAC SINGLE CYLINDER RESISTIVE
HUMIDIFIER CONTROL FITTED WITH

VAPAC 1150630 motherboard
control input for temp. and RH sensor
or control pot

DRAWING No.:

A4-LZD547

Jun 04 RPT

DATE :
ITEM REF:
SCALE :
SHEET No.

ISSUE :

Red 68
Black 67

IF IN DOUBT ASK

FEB 2002

LR

N.T.S.

2 OF 3

2

47 Pink

29

31

Violet

0V

TOP

33

32

White

Pink

F2 9V
2 Amp
Control Fuse

CR12

K1

34

34

Violet

43512

CR10

35 Pink

Y1A

36

35

35

36

Pink

Violet

CYL 1
Water
Feed

Solenoid
Valve

slow fill

Violet

CR1

11

12

48

36

41

Pink

Control Fuse

2345678

Pink

42459

Pink

Pink

131110 128769

F1 24V

6.3 Amp

1

CR4

Pink 59

NO1

NO2

CYL 1
Water
Feed

Y1B

Solenoid
Valve

fast fill

Pink

47

STAT
SET
112 C

Pink

33

Violet 53
Pink 53
Pink 53

3

4

10

12

Pink

Pink

Pink

Red

Green

2 1

Yellow

FOUR WAY
PLUG &
SOCKET

Blue

Upper
float

1614 15

54 231

Violet
Pink
Pink
Violet

51
52
53
54

switch

Lower
float
switch

Cylinder 1

Violet

57

ANALOGUE INPUT 8

0v COM AI 8

CR11

Net

J6

J5

NO NC C NO NC C

CR5

12 3 45 6 1 423 56

DO 10 NO

DO 10 NC.

DO 10 Com.

DO 9 NO.

DO 9 NC.

DO 9 Com.

0v COM AI 7

CR8

0v COM AI 5

0v COM AI 6

CR7

NO NC C NO NC C

DO 7 NO.

DO 8 Com.

DO 8 NC.

DO 8 NO.

ANALOGUE INPUT 5

ANALOGUE INPUT 6

ANALOGUE INPUT 7

DO 7 NC.

CR6

DO 7 Com.

Pink 59
Violet

Pink

White
Violet
Red
Black
Black
Red

Red

60
61

6
5
8
7
67
68

4

J4 J3 J1J2

CR2

11
12 10 9 786

15 14 13

CR3

798 65 3421

10 16

CR9

Earth

Bond

IF IN DOUBT ASK

Date Dr'n. Ckd.Rev.No. Revision note

2 Brought into line with sheet 2 MAR 03 RW
3 K1 feedback into DI7 23/06/04 RPT

Vapac

Humidity Control Ltd.
Fircroft Way, Edenbridge,
KENT, TN8 6EZ. ENGLAND.
PHONE [phone]

TITLE:

VAPAC SINGLE CYLINDER RESISTIVE

HUMIDIFIER CONTROL FITTED WITH
VAPAC 1150630 motherboard
Connections to feed valves, float switches &
high temperature stats.

DRAWING No.:

A4-LZD 547

DATE :
ITEM REF:
SCALE :
SHEET No.

ISSUE :

FEB 2002

LR

N.T.S.

3 OF 3

3

BLUE

30

26

Red

29

A1

RED

A3

BLUE

CYLINDER POWER DIAGRAMS:-

A4-LZD-549 to 556

or N *

Grey
Blue

20

22

9v to 12v AC or DC Supply

v0v

SUPPLY CONNECTION FROM ONE

OF THE FOLLOWING EIGHT

CR4

DISPLAY ONLY WIRED
IF FITTED

KEYPAD FOR DISPLAY
Part Number M 300120

V p c

Clear Window
75 x 24

Esc.

2C1 534 67

F1

2A

230 VOLTS

TAPPING IS A
70 VA Auto wind.

F2

2A

0v AC or DC Supply

8

see note 1

RED

29

20

BLUE

22

22

H1

2-Brown
2-Blue

NetCR1

9v AC Fused Supply
0v AC Fused Supply

DISPLAY PCB BOARD
Part Number 1150631

23 89645 7

1

CR6

440
415

380

230

200
115

T1

24v AC

24 v 50 or 70 VA
Isolated wind

9v AC

45 Pink

32 White

NOTE

1. WIRE 29 CONNECTION
ONTO TRANSFORMER TO
BE CONNECTED ON TO
TAPPING THAT MATCHES

13

K1

14

25

INCOMING SUPPLY EITHER
220 - 240 V 1Ph + N,

31 Violet

0

0v AC

220 - 240 Volts 3 Ph ase
OR 380-420 Volts 3 Phase

TEMPERATURE
THERMISTOR INPUT
PREFURED TYPE 10K3A1

4

65 21

87

FIVE CONTROL TERMINAL

Red

25 26

RDU SUPPLY OR
REMOTE FAN START

OPTIONS SHOWN

21

FOR TERMINALS 1-8

4

CONTROL INPUT
0 - 20 VOLTS J1 OPEN CIRCUIT
0 - 20 mA J1 CLOSED CIRCUIT

87 56

Part Number 1150630

SEE DRAWING
No. A4-LZD-54
SHEET 2 OF 3
FOR CONNECTION S
ONTO 1150630
PCB. MOTHERBOARD

182675

4

6752

8

LINK TERMINALS
5 AND 7

1

LINK TERMINALS
5 AND 7

4

AI 1 ref.

AI 1
0 v DC

+ 5v DC

LINK TERMINALS
5 AND 7

4

AI 1 ref.

521

AI 1
0 v DC

+ 5v DC

876

Thermistor
Thermistor

+9v DC

RH input
0 v DC

White
White

Black
Red

CD
B
A

Temp. & R.H. SENSOR

HUMIDITY SIGNAL 0-10 volts

J1 OPEN CIRCUIT

HUMIDITY SIGNAL 4-20 mA

J1 CLOSED CIRCUIT

PROPORTIONAL

POT

J1 OPEN CIRCUIT

HYGROSTAT WITH

VOLT FREE

CONTACTS OR

J1 OPEN CIRCUIT

ON OFF CONTROL

SIGNAL VOLT

FREE CONTACTS

IF IN DOUBT ASK

Grey
BLUE

Humidity Control Ltd.

Vapac

20

22

TO SHEET
2 of 3

Fircroft Way, Edenbridge,
KENT, TN8 6EZ. ENGLAND.
PHONE [phone]

Date Dr'n Ckd.Rev.No. Revision note

2 TERMINALS 20 & 22 ADDED MAR 03 RW
3 Brought into line with sheets 2 & 3 JUN 04 RPT

TITLE:

VAPAC 1150630 motherboard Main supply
control transformer
and customer control signal inputs

DRAWING No.:

VAPAC TWIN CYLINDER RESISTIVE
HUMIDIFIER CONTROL FITTED WITH

A4-LZD-548

DATE :
ITEM REF:

SCALE :

SHEET No.
ISSUE :

FEB 2002

LR

N.T.S.

1 OF 3

3

31

45 Pink

32 White

31 Violet

9v AC Fused Supply

0v AC Fused Supply

SEE DRAWING A4-LZD-548

SHEET 1 OF 3 FOR FEED

NET WORK CABLE

Grey 20
Blue 22

2-Brown
2-Blue

CABLE CONNECTION THIS

1-Brown
1-Blue

B

A

24 Volt AC

9 Volt AC

O Volt AC

SIDE OF DRAWING.

Violet

0V

TOP

Grey 23

33

353837

34

Pink

Pink

Violet

White

9V ac Input

24V ac supply DO2

24V ac supply DO1

DO 1 CYLINDER 1 CONTACTOR

43512

F2 9V
2 Amp
Control Fuse

CR12

CR10

6B 4B

66 Pink

CR11

Net

J6

NO NC C NO NC C

12 3 45 6 1 423 56

DO 10 NO

DO 10 NC.

DO 10 Com.

DO 9 NO.

22 23 22 21

M1

M1

36

Violet

DO 2 CYLINDER 1 WTR SOL.

CR1

5B

43 Pink

46 Pink

CR5

DO 9 NC.

DO 9 Com.

Grey

39

40

Pink

Pink

Violet

Violet

24V ac supply DO3

24V ac supply DO4

DO 3 CYLINDER 2 CONTACTOR

DO 4 CYLINDER 2 WTR SOL.

Control Fuse

ANALOGUE INPUT 6

ANALOGUE INPUT 7

ANALOGUE INPUT 8

0v COM AI 6

0v COM AI 7

0v COM AI 8

CR8

6B 4B

5B

44
Pink

J5

NO NC C NO NC C

DO 8 NO.

21

547

UNIT
RUN

CUSTOMER CONNECTION
TERMINALS

Pink

Pink

Run ctl. switch IN

Run ctl. switch OUT

F1 24V

6.3 Amp

1

2345678

CR4

ANALOGUE INPUT 5

0v COM AI 5

Violet 60

CR7

DO 7 NO.

DO 8 Com.

DO 8 NC.

546

545

544

UNIT
COMMON
FAULT ALARM

Pink

24v E.P.O. IN

131110 128769

DO 7 NC.

543

1011

E.P.O.

9

CIRCUIT

12

Security/
Load Shed*

* See Man
Page 14

Violet 60

ONLY FITTED IF
UNIT HAS NOT GOT

A DISPLAY FITTED
THEN RESET BUTTON
IS FITTED ON FRONT
PANEL INSTEAD

6

8752

41

Pink

24v E.P.O. OUT

10

Pink
Pink

9

Pink

CYLINDER 1
CONTROL

DRAINDRAIN

SWITCH

CYLINDER 2
CONTROL
SWITCH

58
57
51
52
53
54
55
56
57
58

1
2

6
5
8
7
67
68

4

12

60
61

Pink

41

Pink

42

Pink

Pink

24V ac INPUT

DI 1 LOAD SHED

1614 15

54 231

CR2

J4 J3 J1J2

15 14 13 1112 10 9 786

CR3

798 65 3421

10 16

3A 1A

2A

2A

0v COM DI1 & DI2 Violet
DI 2 CYL 1 UPPER FLOAT Pink
DI 3 CYL 1 LOWER FLOAT Pink
0v COM DI3 & DI4 Violet
DI 4 CYL 2 UPPER FLOAT
DI 5 CYL 2 LOWER FLOAT
0v COM DI5 & DI6
DI 6 CYL 2 ON/OFF
DI 7 Cyl. 1 Cont. HT
0v COM DI 7, 8, & 9
DI 8 FAULT RESET BUTTON
DI 9 Cyl. 2 Cont. HT
AI 4 NOT USED
AI 4 Ref.
AI 3
AI 3 Ref.

THERMISTOR INPUT
THERMISTOR INPUT

AI 2 NOT USED
AI 2 Ref.
AI 1 V or mA INPUT
AI 1 Ref. Violet
Demand POT +5v dc
Demand POT 0v dc Black
DO 5 CYL 1 SSR
+9v dc feed DO 5 Pink
DO 6 NOT USED
+9v dc feed DO 6 Red

1A3A

Pink
Violet

ON RUN

OFF

ON RUN

OFF

Pink
Pink
Violet
Pink

Violet
Pink

White
White

White

Red

Black

CR9

CR6

DO 7 Com.

Earth
Bond.

SEE DRAWING A4-LZA-549 TO

542

LZA-552 CYLINDER POWER

SEE DRAWING A4-LZD-548
SHEET 1 OF 3 FOR FIVE
ALTERNATIVE CONTROL SIGNAL
INPUTS ONTO TERMINAL 1-8

Red 68
Black 67

DIAGRAMES FOR SSR CONNECTIONS
OF 67 & 68 ON "P" TYPE UNIT ONLY.

CYLINDER 2
DRAIN PUMP
240 V

Vapac

CYLINDER 1
DRAIN PUMP
240 V

VAPAC TWIN CYLINDER RESISTIVE
HUMIDIFIER CONTROL FITTED WITH

VAPAC 1150630 motherboard
control input for temp. and RH sensor

N.T.S.

or control pot

K1

Y1A

47

35

PinkPink

PinkPink

CYL 1
Water
Feed

Sol.
Valve

slow fill

VioletViolet

32

37

PinkPink

49

PinkPink

39

Pink

SLAVESLAVE
Water

Water
Feed

Feed
Sol.
ValveValve

slow fill

slow fill

40

Pink

VioletViolet

11

12

Y2B

50

SLAVE

SLAVE
WaterWater
FeedFeed

Sol.
ValveValve

NO1

NO2

11

12

Y1B

48

PinkPink

36

CYL 1
Water
Feed

Sol.
Valve

fast fill

NO1

NO2

K2

Y2A

62Pink

31

Violet

Violet

0V

TOP

33

32

White

White

Pink

Pink

F2 9V
2 Amp
Control Fuse

CR12

34

34

Violet

Violet

43512

CR10

36

35

353837

36

PinkPink

VioletViolet

CR1

40

38

39

Violet
PinkPink
PinkPink

39

Pink

Pink

PinkPink

Violet

Violet

42459

40

VioletViolet

10

41

Pink

Pink

Pink

Pink

Pink

Pink

12

59Pink

Pink

Pink

PinkPink

PinkPink

51
52
53

RedRed

34 2 1

Yellow

Yellow

GreenGreen

FOUR WAY FOUR WAY
PLUG &

PLUG &
SOCKET

SOCKET

Blue

Blue

Pink

Pink

47

STATSTAT
SETSET
112 C112 C

PinkPink

33

UpperUpper
floatfloat

131110 128769

F1 24V

6.3 Amp

Control Fuse

1

2345678

CR4

ANALOGUE INPUT 5

ANALOGUE INPUT 6

ANALOGUE INPUT 7

ANALOGUE INPUT 8ANALOGUE INPUT 8

ANALOGUE INPUT 7

ANALOGUE INPUT 6

ANALOGUE INPUT 5

0v COM AI 5

0v COM AI 6

0v COM AI 7

0v COM AI 8

0v COM AI 8

0v COM AI 7

0v COM AI 6

0v COM AI 5

CR8

1614 15

54 231

CR2

J4 J3 J1J2

Violet
Pink
Pink
Violet
Pink
Pink
Violet
Pink

Violet
Pink

51
52
53
54
55
56
57
58
59Pink

60
61
62Pink

Lower

Lower
floatfloat
switchswitch

switchswitch

Cylinder 1Cylinder 1

CR11

Net

Vapac

J6

J5

NO NC C NO NC C

CR5

12 3 45 6 1 423 56

DO 10 Com.DO 10 Com.

DO 10 NC.

DO 10 NO

DO 10 NC.

DO 10 NO

DO 9 NC.

DO 9 Com.

DO 9 NO.

DO 9 Com.

DO 9 NC.

DO 9 NO.

CR7

NO NC C NO NC C

DO 8 NO.DO 8 NO.

DO 7 NO.DO 7 NO.

DO 8 NC.

DO 8 Com.

DO 8 NC.

DO 8 Com.

DO 7 NC.DO 7 NC.

DO 7 Com.

DO 7 Com.

CR6

15 14 13 1112 10 9 786

FOUR WAY

PinkPink
55

Yellow

Yellow

Upper

Upper

FOUR WAY

VioletViolet

PLUG &

PLUG &
SOCKETSOCKET

Blue

Blue

CR3

798 65 3421

WhiteWhite
Violet

Violet
RedRed
Black

Black
BlackBlack
RedRed

PinkPink
56

435421

6
5
8
7
67
68

GreenGreen

RedRed

floatfloat

LowerLower
floatfloat
switch

switch

switchswitch

4

10 16

RedRed

CR9

Earth

BondBond

Earth

Cylinder 2Cylinder 2

2 Brought into line with sheet 2 Mar 03 RW
3 K1 & K2 feedback into DI 7 & DI 9 Added Jun 04 RPT

VAPAC TWIN CYLINDER RESISTIVE

VAPAC TWIN CYLINDER RESISTIVE

VAPAC 1150630 motherboa rd

VAPAC 1150630 motherboa rd
control input for temp. and RH sensor

control input for temp. and RH sensor
or control pot

or control pot

HUMIDIFIER CONTROL FITTED WITHHUMIDIFIER CONTROL FITTED WITH

N.T.S.

PinkPink

49

STATSTAT
SETSET
112 C112 C

PinkPink

37

33

BLUE

26

RED

246
1

80 A1

PE

R1-3
C1-3
R1-2
C1-2
R1-1
C1-1

Earth

EMC Filter

"MASTER"

C2-3
C2-2

C2-1

N

A3A
A2A
A1A

A3A

A2A

A1A

LR05P UNIT

N

A1

N

53

A1

BLUE

N

SUPPLY TO
LZD-547 SHEET 1of3

or LZD-548 SHEET 1of3
K1 K1
CONTACTOR

RATED AC1 25A.

67 BLACK

SUPPLY FROM

­+

SSR-1
RATED
75A.

68 RED

Fuse 1
RATED 20A

LZD-548
SHEET 2 of 3

81

Earth

A1

N

LR05 UNIT

N

42

5631

82

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

CONTACTOR
RATED AC1 25A.

26
A1

N

Fuse 1
RATED 20A

BLUE
RED

BLUE

82

PE

A1N

200 - 250 VOLT 50 or 60 Hz.
1 Phase & Neutral plus Earth
OR 2 Phase plus Earth

FOR ELECTRICAL LOADS AND POWER SUPPLY DETAILS
PLEASE REFER TO THE VAPANET LR & LRP INSTALLATION
OPERATION, MANUAL EDITION 2 OR LATER.

1

A3A2

2 2

PE N A1

1 X 3.8 kW HEATING
ELEMENT

X N.T.S.

200 - 250 VOLT 50 OR 60 Hz.
1 Phase & Neutral plus Earth
OR 2 Phase plus Earth

POWER CONNECTIONS FOR CYLINDER 1
LR05P AND LR05 HEATER ELEMENTS
200 - 250 VOLT 1Ph +N OR 2 Ph.

VAPAC 5 KG/HR CYLINDER

1

1 X 3.8 kW HEATING
ELEMENT

Earth

34

26

BLUE

A1

RED

N

SUPPLY TO
LZD-547 SHEET 1of3

A1

LR10SP UNIT

N

A1

N

85

53

SSR-2

-

RATED

+

75A

or LZD-548 SHEET 1of3

A1

246

K1 K1

1

CONTACTOR RATED
AC1 40A.

80

SSR-1

-

RATED

+

75A

BLUE

67 BLACK

SUPPLY FROM
LZD-548

SHEET 2 of 3

68 RED

Earth

A1

A1

A1

LR10S UNIT

A1

N

N

42

5631

85

83

81

CONTACTOR RATED
AC1 40A.

26 BLUE

A1

RED

N

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

BLUE

EMC Filter

"MASTER"

PE

R1-3
C1-3
R1-2
C1-2
R1-1
C1-1

PE

C2-3
C2-2

C2-1

N

A3A
A2A
A1A

A3A

A2A

A1A

A1N

200 - 250 VOLT 50 or 60 Hz.
1 Phase & Neutral pluss Earth
OR 2 Phase plus Earth

FOR ELECTRICAL LOADS AND POWER SUPPLY DETAILS
PLEASE REFER TO THE VAPANET RH & RHP INSTALLATION
OPERATION, MANUAL EDITION 2 OR LATER.

MCB'S
RATED
AT 16A.

10 WAY 16 AMP SOCKET

10

9

10

9

10 WAY 16 AMP PLUG

A3A2

83

81

81

N

N

86

84182

8

7

8

7

5

5

5

6

6

5

5

3

1

3 X 2.5 KW. HEATING
ELEMENTS

3

4

4

4

4

2

2

1

1

2

3

3

2

PE N A1

200 - 250 VOLT 50 or 60 Hz
1 Phase & Neutral plus Earth

OR 2 Phase + Earth

X N.T.S.

10 WAY 16 AMP SOCKET

10

10

10 WAY 16 AMP PLUG

A3A2

8

7

998

POWER CONNECTIONS FOR CYLINDER 1
LR10SP AND LR10S HEATER ELEMENTS IN
PARALLEL FOR 200-250V 1Ph+N or 2Ph.

7

5

5

VAPAC 10 KG/HR CYLINDER

N

N

86

84

5

6

5

6

5

3

1

443

4

4

2

3

221

3

2

3 X 2.5 KW. HEATING
ELEMENTS

1

82

1

Fuses
RATED
AT 16A.

IF IN DOUBT ASK

Earth

A1A2A3

LR10DP UNIT

SSR-2
RATED
75A

85

A3A1A2

53

­+

35

26

BLUE
RED

A1

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

BLUE

A3

246

K1 K1

1

CONTACTOR RATED
AC1 25A

83+80

-

SSR-1
RATED
75A

67 BLACK

SUPPLY FROM
LZD-548
SHEET 2 of 3

68 RED

Earth

LR10D UNIT

A3A1A2

5631

85

83

26
A1

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

A3

42

CONTACTOR RATED
AC1 25A

81

BLUE
RED

BLUE

EMC Filter

"MASTER"

PE

C2-3
C2-2

C2-1

R1-3
C1-3
R1-2
C1-2
R1-1
C1-1

PE

N

A3A
A2A
A1A

A3A

A2A

A1A

A1N

200 - 250 VOLT 50 or 60 Hz.
3 Phase & Neutral
plus Earth

Rev.No. Revision note

FOR ELECTRICAL LOADS AND POWER SUPPLY DETAILS
PLEASE REFER TO THE VAPANET LR & LHP INSTALLATION
OPERATION, MANUAL EDITION 2 OR LATER.

90

83

81

Fuses
RATED
AT 20A.

84182

86

6

5

4

3

2

1

6 WAY 35 AMP SOCKET

6

5

1

2

A3A2

3

4

3

3

1

Front

Date Signature Checked

1

2

2

6 WAY 35 AMP PLUG

3

2

3 x 2.5 KW. HEATING
ELEMENTS

DR'N :XRJW
CHK'D :

PART No./REF.
x

PE N A2A1 A3

200 - 250 VOLT 50 or 60 Hz.
3 Phase plus Earth

Humidity Control Ltd.

Vapac

Fircroft Way, Edenbridge,
KENT, TN8 6EZ. ENGLAND.

PHONE [phone]

6 WAY 35 AMP SOCKET

6

544

6

5

6 WAY 35 AMP PLUG

1

2

TITLE:

POWER CONNECTION FOR CYLINDER 1
LR10D AND LR10DP HEATER ELEMENTS
IN DELTA FOR 200 - 250 V 3 PHASE

DRAWING No.:

VAPAC 10 KG/HR CYLINDER

A3-LZD-552

86

3

3

3

3

1

Front

84

2

2

2

Fuses
RATED
AT 20A.

82

1

1

1

3

2

3 x 2.5 KW. HEATING
ELEMENTS

DATE :
ITEM REF :
SCALE :
SHEET No.

ISSUE :

FEB 02

LRP

N.T.S.

1 OF 1

1

Earth

N

A1A2A3

LR10P UNIT

SSR-2
RATED
75A.

85

A3A1A2

53

+-

36

26

BLUE

A1

RED

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

A3

BLUE

246

K1 K1

1

CONTACTOR RATED
AC1 25A.

83+80

-

SSR-1
RATED
75A.

67 BLACK

SUPPLY FROM
LZD-548
SHEET 2 of 3

68 RED

N

Earth

LR10 UNIT

A3A1A2

42

5631

85

83

81

26 BLUE
A1

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

A3

CONTACTOR RATED
AC1 25A.

RED

BLUE

EMC Filter
CYLINDER 1

PE

C2-3
C2-2

C2-1

R1-3
C1-3
R1-2
C1-2
R1-1
C1-1

PE

N

A3A
A2A
A1A

A3A

A2A

A1A

A1N

380 - 440 VOLT 50 or 60 Hz.
3 Phase & Neutral
plus Earth

FOR ELECTRICAL LOADS AND POWER SUPPLY DETAILS
PLEASE REFER TO THE VAPANET LR & LRP INSTALLATION
OPERATION, MANUAL EDITION 2 OR LATER.

10 WAY 16 AMP SOCKET

10

9

10

9

10 WAY 16 AMP PLUG

A3A2

90

83

84182

2

2

2

81

10 WAY 16 AMP SOCKET

10

1

1

PEN A1A2A3

988

10

9

10 WAY 16 AMP PLUG

7

7

5

5

76

6

5

5

6

5

3

1

-+-+

380 - 440 VOLT 50 or 60 Hz.
3 Phase plus Earth, Neutral ONLY

86

76

443

4

4

2

84

3

2

2

2

3

3 x 2.5 KW HEATING
ELEMENTS

Fuses
RATED
16A

76

8

7

8

7

5

5

5

6

5

6

5

3

1

86

76

4

3

3

4

3

4

4

2

3 x 2.5 KW HEATING
ELEMENTS

1

821

1

Fuses
RATED
16A

REQUIRED IF RDU IS FITTED

VAPAC 10 KG/HR CYLINDER

X N.T.S.

POWER CONNECTIONS FOR CYLINDER 1
LR10P AND LR10 HEATER ELEMENTS
IN STAR 380 - 440 V 3 PHASE

IF IN DOUBT ASK

Earth

A1A2A3

LH20P UNIT AND
LH40P CYLINDER 1

SSR-1
RATED
75A.

85

A3A1A2

53

+-

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

K1

246

CONTACTOR RATED

1

AC1 40A

83+80

-

26
A1

A3

SSR-1
RATED
75A.

BLUE
RED

BLUE

67 BLACK

SUPPLY FROM
LZD-548
SHEET 2 of 3

68 RED

37

Earth

26 CYLINDER 1 ONLY
A1 CYLINDER 1 ONLY

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

LR20 UNIT,
LR40 CYLINDER 1,
LR40P & LR50P CYL. 2

5631

LR40 & LR50 CYL. 2

95 CYL. 2

A2 CYLINDER 1, B2 CYLINDER 2

A1 CYLINDER 1, B1 CYLINDER 2

A3 CYLINDER 1, B3 CYLINDER 2

85 CYL. 1

A3 CYLINDER 1 0NLY

42

93 CYLINDER 2

91 CYLINDER 2

81 CYLINDER 1

83 CYLINDER 1

K1 CYLINDER 1
K2 CYLINDER 2

CONTACTOR RATED
AC1 40A

BLUE
RED

BLUE

EMC Filter

CYLINDER 1

C2-3
C2-2

C2-1

R1-3
C1-3
R1-2
C1-2
R1-1
C1-1

PE

PE

A3A
A2A
A1A

A3A

A2A

A1A

N

A1N

380 - 440 VOLT 50 or 60 Hz.
3 Phase & Neutral
plus Earth

FOR ELECTRICAL LOADS AND POWER SUPPLY DETAILS
PLEASE REFER TO THE VAPANET LR & LRP INSTALLATION
OPERATION, MANUAL EDITION 2 OR LATER.

90

839082

77

77

10

9

10

9

10

9

A3A2

88687

89

8

7

8

7

8

7

3

5

10

7

Front

Date Drn. Ckd.Rev.No. Revision note

87

Fuses
RATED
16A.

76

76

5

6

6

6

5

1

4

5

4

5

4

9

9

DR'N :XRJW
CHK'D :

PART No./REF.
x

83

81

Fuses
RATED
16A.

1

1

10 WAY
16 AMP
SOCKET

PLUG

84182

86

2

3

2

3

3

2

2

4

8

380 - 440 VOLT 50 or 60 Hz.

6 X 2.5 KW
HEATING ELEMENT

Vapac

Humidity Control Ltd.

3 Phase plus Earth, Neutral
ONLY REQUIRED IF RDU IS FITTED

Fircroft Way, Edenbridge,
KENT, TN8 6EZ. ENGLAND.
PHONE [phone]

PE N A1 A2 A3

B1PE N B2

TITLE:

FOR CYLINDER 1 ON LR20P, LR40P, LR20, & LR40.
FOR CYLINDER 2 ON LR40, LR50, LR40P, & LR50P
HEATER ELEMENTS IN STAR FOR 380 - 440 V 3 PHASE

DRAWING No.:

89

99

797977

77

10

10

10

CYLINDER 1

B3

CYLINDER 2

8

998

9

8

3

5

7

VAPAC 20 KG/HR CYLINDER POWER CONNECTION

87

88

98

97

6

7

6

7

7

6

10

5

A3-LZD-553

Fuses
RATED
16A.

6

1

767876

5

5

5

86

96

78

3

443

4

3

9

2

4

9

8

6 X 2.5 KW
HEATING ELEMENT

Front

DATE :
ITEM REF :
SCALE :
SHEET No.

ISSUE :

84

94

221

2

FEB 02
N.T.S.

1

82

1

1

1 OF 1

Fuses
RATED
16A.

10 WAY

92

16 AMP
SOCKET

PLUG

LRP

IF IN DOUBT ASK

Earth

LR20DP UNIT AND
LR40DP CYLINDER 1

A1A2A3

SSR-2
RATED
75A.

85

A3A1A2

53

­+

26
A1

A3
246
1

83+80

BLUE
RED

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

BLUE

K1

CONTACTOR RATED
AC1 40A

67 BLACK

SUPPLY FROM

SSR-1

-

RATED
75A.

LZD-548
SHEET 2 of 3

68 RED

38

Earth

26 CYLINDER 1 ONLY BLUE

A1 CYLINDER 1 ONLY RED

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

A3 CYLINDER 1 ONLY BLUE

LR20D UNIT,
LR40D CYLINDER 1,

LR40DP & LR50DP CYL. 2

5631

42

K1 CYLINDER 1
K2 CYLINDER 2

CONTACTOR RATED
AC1 40A

LR40D & LR50D CYL. 2

A2 CYLINDER 1, B2 CYLINDER 2

A1 CYLINDER 1, B1 CYLINDER 2

A3 CYLINDER 1, B3 CYLINDER 2

95 CYLINDER 2

85 CYLINDER 1

83 CYLINDER 1

93 CYLINDER 2

81 CYLINDER 1

91 CYLINDER 2

EMC Filter
CYLINDER 1

C2-3
C2-2

C2-1

R1-3
C1-3
R1-2
C1-2
R1-1
C1-1

PE

PE

N

A3A
A2A
A1A

A3A

A2A

A1A

A1N

200 - 250 VOLT 50 or 60 Hz.
3 Phase & Neutral
plus Earth

FOR ELECTRICAL LOADS AND POWER SUPPLY DETAILS
PLEASE REFER TO THE VAPANET LR & LRP INSTALLATION
OPERATION, MANUAL EDITION 2 OR LATER.

90
Fuses
RATED
AT 20A.

A3A2

839081

89

88

87

6

5

4

6

5

4

6

5

4

3

6

5

2

83

81

Fuses
RATED
AT 20A.

86

84

82

3

2

1

6 WAY 35AMP SOCKET

1

2

3

3

2

4

1

1

6 WAY 35AMP PLUG

1

5

2

3

4

6

PE N A2A1

B1PE N B2

Fuses
RATED
AT 20A.

A3 CYLINDER 1
B3 CYLINDER 2

89

99

98

97

6

5

4

6

5

4

6

5

4

3

6

5

2

84

86

96

94

3

2

3

2

3

2

4

1

1

87

88

Fuses
RATED
AT 20A.

82

92

1

6 WAY 35AMP SOCKET

1

6 WAY 35AMP PLUG

1

5

2

3

4

6

200 - 250 VOLT 50 or 60 Hz.
3 Phase plus Earth

TITLE:

DRAWING No.:

Front

VAPAC 20 KG/HR CYLINDER POWER CONNECTION
FOR CYLINDER 1 ON LR20DP, LR40DP, LR20D, & LR40D.
FOR CYLINDER 2 ON LR40D, LR50D, LR40DP, & LR50DP
HEATER ELEMENTS IN DELTA FOR 200 - 250 V 3 PHASE

A3-LZD-554

6 X 2.5 KW.

HEATING ELEMENTS

DATE :
ITEM REF :
SCALE :
SHEET No.

ISSUE :

FEB 02

LRP

N.T.S.

1 OF 1

1

Date Drn. Ckd.Rev.No. Revision note

Front

DR'N :XRJW
CHK'D :

PART No./REF.
x

6 X 2.5 KW.

HEATING ELEMENTS

Vapac

Humidity Control Ltd.
Fircroft Way, Edenbridge,
KENT, TN8 6EZ. ENGLAND.

PHONE [phone]

PE

R1-3
C1-3
R1-2
C1-2
R1-1
C1-1

Earth

EMC Filter

CYLINDER 1

C2-3
C2-2

C2-1

N

A3A
A2A
A1A

A3A

A2A

A1A

N

A1A2A3

LR30P UNIT
LR50P AND LR60P
CYLINDER 1

90

839082

Fuses
RATED
AT 20A

89

88

6

5

6

5

6

5

SSR-2
RATED
75A.

8

39

BLUE

26

RED

A1

SUPPLY TO
LZD-457 SHEET 1of3
or LZD-458 SHEET 1of3

BLUE

83+80

83

84

2

2

2

7

A3

K1

246
1

CONTACTOR RATED
AC1 40A.

67 BLACK

SSR-1

-

RATED
75A.

68 RED

81

Fuses
RATED
AT 20A

82

1

6 WAY 35AMP SOCKET

1

6 WAY 35AMP PLUG

1

SUPPLY FROM
LZD-548
SHEET 2of3

Earth

LR30 UNIT
LR50 & LR60 CYLINDER 1

LR60 & LR60P CYL. 2

A2 CYLINDER 1, B2 CYLINDER 2

A1 CYLINDER 1, B1 CYLINDER 2

A3 CYLINDER 1, B3 CYLINDER 2

Fuses
RATED
AT 20A

95 CYLINDER 2

85 CYLINDER 1

87

88

89

99

98

6

5

6

5

6

5

8

86

97

3

4

3

4

4

3

A3A1A2

53

85

+-

86

87

3

4

3

4

4

3

26 CYLINDER 1 ONLY
A1 CYLINDER 1 ONLY

A3 CYLINDER 1 ONLY

42

5631

93 CYLINDER 2

81 CYLINDER 1

83 CYLINDER 1

84

96

94

2

2

2

7

SUPPLY TO
LZD-457 SHEET 1of3
or LZD-458 SHEET 1of3

K1 CYLINDER 1
K2 CYLINDER 2

CONTACTOR RATED
AC1 40A.

91 CYLINDER 2

Fuses
RATED
AT 20A

82

92

1

6 WAY 35AMP SOCKET

1

6 WAY 35AMP PLUG

1

BLUE

RED

BLUE

PE

380 - 440 VOLT 50 or 60 Hz.
3 Phase & Neutral
plus Earth

FOR ELECTRICAL LOADS AND POWER SUPPLY DETAILS
PLEASE REFER TO THE MICROVAP RH & RHP INSTALLATION
OPERATION, MANUAL EDITION 2 OR LATER.

4

3

8

7

8

A1N

A3A2

5

Front

1

6 X 3.8 Kw
HEATING ELEMENTS

X N.T.S.

2

7

8

7

6

PE N A1 A2

B1PE N B2

A3 CYLINDER 1
B3 CYLINDER 2

380 - 440 VOLT 50 or 60 Hz.
3 Phase plus Earth, Neutral
ONLY REQUIRED IF RDU IS FITTED

VAPAC 30 KG/HR CYLINDER POWER CONNECTION

FOR CYLINDER 1 LR30P, LR50P, LR60P, LR30, LR50 , &
LR60 . FOR CYLINDER 2 LRP 60 AND LR60 HEATER
ELEMENTS IN STAR 380 - 440 V 3 PHASE

3

8

7
8
5

4

2

7

8

7

6

1

6 X 3.8 Kw

HEATING ELEMENTS

Front

Earth

A1A2A3

LR30DP UNIT
LR50DP & LR60DP CYL. 1

SSR-2
RATED
75A.

85

A3A1A2

53

­+

26
A1
SUPPLY TO

LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

A3

K1

246
1

CONTACTOR RATED
AC1 90A

83+80

-

BLUE
RED

BLUE

67 BLACK

SSR-1

SUPPLY FROM

RATED

LZD-548

75A. SHEET 2 of 3

68 RED

40

Earth

A1 CYLINDER 1, B1 CYLINDER 2

LR30D UNIT
LR50D & LR60D CYL. 1

LR60DP & LR60D CYL. 2

A2 CYLINDER 1, B2 CYLINDER 2

A3 CYLINDER 1, B3 CYLINDER 2

5631

95 CYLINDER 2

85 CYLINDER 1

26 CYLINDER 1 ONLY
A1 CYLINDER 1 ONLY

SUPPLY TO
LZD-547 SHEET 1of3
or LZD-548 SHEET 1of3

A3 CYLINDER 1 ONLY

K1 CYLINDER 1

42

K2 CYLINDER 2

CONTACTOR RATED
AC1 90A

93 CYLINDER 2

91 CYLINDER 2

81 CYLINDER 1

83 CYLINDER 1

BLUE
RED

BLUE

EMC Filter
CYLINDER 1

PE

R1-3
C1-3
R1-2
C1-2
R1-1
C1-1

PE

C2-3
C2-2

C2-1

N

A3A
A2A
A1A

A3A

A2A

A1A

A1N

200 - 250 VOLT 50 or 60 Hz.
3 Phase Neutral
plus Earth

FOR ELECTRICAL LOADS AND POWER SUPPLY DETAILS
PLEASE REFER TO THE MICROVAP RH & RHP INSTALLATION
OPERATION, MANUAL EDITION 2 OR LATER.

Fuses
RATED
AT 32A

A3A2

90

839081

89

88

87

6

5

4

6

5

4

6

5

4

5

3

1
6
5

Front

83

81

Fuses
RATED
AT 32A

86

84

82

3

2

1

6 WAY 35AMP SOCKET

1

2

3

3

2

4

6 WAY 35AMP PLUG

1

4

2

1

6 X 3.8 KW.

2

3

6

PE NA2A1

B1PE N B2

A3 CYLINDER 1
B3 CYLINDER 2

200 - 250 VOLT 50 - 60 Hz.
3 Phase plus Earth

HEATING ELEMENTS

VAPAC 30 KG/HR CYLINDER POWER CONNECTION

X N.T.S.

FOR CYLINDER 1 LR30DP, LR50DP, LR60DP, LR30D, LR50D,
AND LR60D. FOR CYLINDER 2 LR60DP AND LR60D
HEATER ELEMENTS IN DELTA 200 - 250 V 3 PHASE

89

99

6

6

6

Front

3

6

5

87

88

98

97

5

4

5

4

5

4

5

1

84

86

96

3

2

3

2

3

2

4

1

Fuses
RATED
AT 32A

82

94

92

1

6 WAY 35AMP SOCKET

1

6 WAY 35AMP PLUG

1

2
3

4

2

6

6 X 3.8 KW.

HEATING ELEMENTS

41

Appendix 1.

A Guide to Positioning Steam Pipes:

Vapac Humidity Control Ltd. Issue this as a guide only, and accept no responsibility for
the positioning of any pipes in a system. This remains the responsibility of the Project
Design Engineer.

3

2

AIR

FLOW

AIR

Key;
1 Insulated Steam Hose
2 Steam Distributor Pipe
3 Hose Clip

4 Condensate Separator.

S

e

e

N

o

FLOW

1

e

t

o

N

e

e

S

t

e

1

S

e

e

N

o

t

e

1

min 300mm

R

R = 250 minimum

1

R

radius for 35 Ø pipe.
R = 500 minimum
radius for 54 Ø pipe.

e

t

o

N

e

e

S

B

L

2

min 20mm

H

2

min 20mm

AIR
FLOW

1

1

e

t

o

N

e

e

X

Y

L

S

e

e

N

o

t

e

1

min 20mm

L

S

S

e

e

N

o

t

e

2

X = 60 minimum height

B

B

for a maximum

negative pressure

-600 Pa.

Y = 220 minimum height
for a maximum

positive pressure
2000 Pa.

S

e

e

N

o

t

e

2

X

Y

Fig 1

2

e

t

o

N

e

e

S

Notes:

1 Steam pipe to have a minimum slope

from the horizontal of 7° or 12% to allow
the condensate to drain back to the
cylinder or trap. NO HORIZONTAL

RUNS. NO 90° ELBOWS.

2 Water condensate tube to slope at 10°

or 18% from the horizontal for
condensate to drain back to drain point.

3 Steam pipes which are mounted

horizontally must discharge vertically
upward.

4 Vertically mounted Steam pipes must

discharge horizontally facing upstream
airflow.

3

1

e

t

o

N

e

e

S

H

min 20mm

5 If the total pressure within a duct air flow

exceeds 2000 Pa and the static is below
2000 Pa then the probe may face
horizontally at right angles to the air
stream.

6 Care should be taken to support steam

hose sufficiently such that no kinks are
formed which would flood with
condensate causing the bore of the tube
to become constricted, leading to
excessive pressure in the steam lines.

N.B Standard steam distribution pipes are
manufactured such that any condensate is
drained back towards the Vapac steam cylinder.
Reverse slope pipes are available, and are fitted
with a drain connector, to enable condensate to
be taken away to a suitable drain.

42

35 Ø 1 Steam Pipe 35 Ø 1 Steam Pipe 35 Ø 2 Steam Pipes

50% H

H > 300

Fig 2

H > 375

33% H

33% H

H < 300

H > 600

30 min

80 200 min

40% H

40% H

20% H

H > 350

H > 400 < 600

200

25%H

80 min. 200 min.

60% H

30% H

250 min.120 min.

54 Ø 1 Steam Pipe 54 Ø 2 Steam Pipes 54 Ø 2 Steam Pipes

Figure 1 shows the versatility of the steam

35 Ø or 54 Ø
1 Steam Pipe

50% W 50% W

W > 200

35 Ø or 54 Ø
2 Steam Pipes

25% 25%50%

W > 200

Fig 3

pipe / steam hose steam delivery system. It
also indicates where and how condensate
traps / condensate separators should be
used. If the steam pipe slopes such that the
steam connection is lower than the far end of
the pipe, this indicates that a reverse slope
steam pipe is required. This is fitted with a
drain point to allow condensate to be taken
away to a convenient drain.

Figure 2 shows recommendations on how to
space one or more steam pipes in a
horizontal duct.

Figure 3 shows recommendations on how
steam pipes should be spaced in a vertical
duct

Figure 4 shows mounting details for 35 and
54 Ø steam pipes

NB. The duct should be clear of obstructions,
transformations and bends until the steam
has been absorbed into the airflow. A guide
to calculating this distance is available from
Vapac – Part Number 0411047.

October 02

DUCT MOUNTING DETAIL
For 35 Ø Steam Pipe

150

65

3 x 5.0 Ø

min 200

min 80

Fixing
holes on
120 PCD.

DUCT MOUNTING DETAIL
For 54 Ø Steam Pipe

170 PCD

80

min 250

1

2

0

150

min 120

120

Fig 4

4 x 6.4 Ø
Fixing
holes on
170 PCD.

150

43

Appendix 2

A Guide to Positioning Multipipes:

Vapac Humidity Control Ltd. Issue this as a guide only, and accept no responsibility for the positioning of any pipes
in a system. This remains the responsibility of the Project Design Engineer. Notes:

Notes:

1 Steam pipe to have a minimum slope from

the horizontal of 7° or 12% to allow the
condensate to drain back to the cylinder or
trap. NO HORIZONTAL RUNS. NO 90°
ELBOWS.

2 Water condensate tube to slope at 10° or

18% from the horizontal for condensate to
drain back to drain point. A suitably sized
trap will be required to prevent steam from
escaping via the condensate drain
connection.

3 Care should be taken to support steam hose

sufficiently such that no kinks are formed
which would flood with condensate causing
the bore of the tube to become constricted,
leading to excessive pressure in the steam
lines.

4 The duct should be clear of obstructions,

transformations and bends until the steam
has been absorbed into the airflow. Vapac
Humidity Control Ltd. Suggest a figure of 1.5
times the estimated absorbtion distance
stated on the “Multipipe” design sheet.
Which is supplied with the quotation.

5 Should it be necessary to slope the steam

hose away from the Vapac Boiler, it will be
necessary to fit a condensate separator to
remove the condensate at the lowest point.
This will need to be taken to a suitable drain.

October, 02

Made in England by:
Vapac Humidity Control Ltd.

Vapac Humidity Control Ltd. reserve the right to change the design or

specification of the equipment described in this manual without prior notice.

Nov. 2005.