Honeywell VaporStat L408J Bedienungsanleitung

CONTENTS

· Edition 05.23 · 65-0287-03 · EN

EN – www.docuthek.com

L408J VaporStat®Controllers

1 Safety ................................1

2 Application ............................2

3 Checking the usage .....................2

4 Features ..............................2

5 Technical data .........................2

6 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

7 Installation ............................3

8 Wiring................................4

9 Adjustment............................5

10 Test boiler installation ...................5

11 Controller seems to operate improperly .....6

12 Checkout ............................6

13 Certification ..........................6

14 Disposal .............................6

1 SAFETY

1.1 Please read and keep in a safe place

Please read through these instructions

carefully before installing or operating. Following the

installation, pass the instructions on to the operator.

This unit must be installed and commissioned in

accordance with the regulations and standards in

force. These instructions can also be found at www.

docuthek.com.

1.2 Explanation of symbols

1, 2, 3, a, b, c = Action

➔= Instruction

1.3 Liability

We will not be held liable for damage resulting from

non-observance of the instructions and non-com-

pliant use.

1.4 Safety instructions

Information that is relevant for safety is indicated in

the instructions as follows:

DANGER

Indicates potentially fatal situations.

WARNING

Indicates possible danger to life and limb.

CAUTION

Indicates possible material damage.

All interventions may only be carried out by qualiﬁed

gas technicians. Electrical interventions may only be

carried out by qualiﬁed electricians.

1.5 Conversion, spare parts

All technical changes are prohibited. Only use OEM

spare parts.

OPERATING INSTRUCTIONS

L408J · Edition 05.23

EN-2

2 APPLICATION

The L408J VaporStat Controllers are line voltage

pressure controllers that provide operating control

or automatic limit protection for pressure systems of

up to 4psi (27.6 kPa).

All models have MicroswitchTM snap switches to

open or close a circuit on a pressure rise.

Primarily for use in vapor heating systems, but also

may be used with liquids, air, and other noncom-

bustible gases.

Stainless steel diaphragm also allows use with am-

monia, oxygen, distilled water, and similar media.

3 CHECKING THE USAGE

Check the ratings given in the instructions and on

the product to make sure the product is suitable for

your application.

This function is only guaranteed when used within

the speciﬁed limits – see page 2 (5 Technical

data). Any other use is considered as non-compliant.

3.1 Part designations

1 Scaleplates

2 Main scale setting indicator

3 Differential setting indicator

4 Main scale adjusting screw

5 Differential adjusting screw

6 Operating lever

7 Ground screw

8 Diaphragm assembly

4 FEATURES

– Maximum surge pressure of 15psi (103.4 kPa).

– All models have an adjustable subtractive

differential.

– Adjustments are made by screws on top of case.

– Scaleplates are marked in English (psi) and

metric (kPa) units.

– Case has clear plastic cover so that pressure

settings can be observed.

– Hexagonal ﬁtting with 1/4-18 NPT internal

threads for direct mounting to the 50024585-001

Brass or 14206 Steel Steam Trap (siphon loop).

– Can also be surface mounted

– Ground screw terminal.

5 TECHNICAL DATA

CAUTION

The speciﬁcations given in this publication do

not include normal manufacturing tolerances.

Therefore, this unit may not match the listed spec-

iﬁcations exactly. Also, this product is tested and

calibrated under closely controlled conditions, and

some minor differences in performance can be

expected if those conditions are changed.

Switch action

Model Switch type Switch action on

pressure rise

L408J1009

L408J1017 Spdt Breaks RB

makes RW

L408J1025

L408J1033 Spdt1) Makes RW1)

1) Spdt switch with terminal B omitted for

miswiring compliance. See the L408J

terminal blocks and internal schematic in

page 4 (8 Wiring).

Switch contact ratings

Amperes at 50/60Hz

Load 120V

240V

Full load 8.0A 5.1A

Locked rotor 48.0A 30.6A

Noninductive 10.0A 5.0A

Operating ranges

Pressure ranges

Midscale subtractive

differential (adjusta-

ble)

0 to 16 oz/

in.2

0 to 6.9

kPa

4 to 16 oz/

in.2

1.7 to 6.9

kPa

0 to 4psi 0 to 27.6

kPa

4 to 16 oz/

in.2

1.7 to 6.9

kPa

Maximum surge pressure:

15psi (103.4 kPa).

Switch

Snap MicroswitchTM in all models.

Maximum ambient temperature

150°F (66°C).

Minimum ambient temperature

-35°F (-37°C). Also refer to instructions under page

3 (7 Installation).

Adjustment means

Screws on top of controller case. Scales are marked

in psi and kPa.

Electrical connections

Internal screw terminals; holes in side of case for

1/2inch conduit.

Mounting means

Hexagonal ﬁtting on diaphragm has 1/4-18 NPT

internal threads for mounting on a pipe or steam

trap (siphon loop). Also can be surface mounted by

L408J · Edition 05.23

EN-3

screws through two holes (knockouts) in back of

case.

Weight

2 lb, 4 oz. (1.02kg).

Finish

Gray.

5.1 Dimensions

2-3/4 (70)

2-1/4 (57)

4-1/2 (114)

1-3/16

1-1/16

(27)

2-1/8 (54)

1-15/16

(49)

1-5/32

(29)

(50)

(30)

1-61/64

4-11/32 (110) case

4-1/2 (114) cover

13/16 (21)

1-13/16 (46)

3-7/8 (99)

5-1/8 (130)

3-23/32 (95)

ø 7/8 (22)

3/16 (9) x 21/64 (8)

Knockout

1/4 – 18 "NPT

1-1/16

(27)

6 ACCESSORIES

50024585-001 Brass steam trap

14026 Steel steam trap

7 INSTALLATION

WARNING

Electrical shock hazard!

Can cause severe injury, death or property dam-

age.

– Disconnect the power supply before beginning

installation to prevent electrical shock or

possible equipment damage.

CAUTION

Equipment damage hazard!

Improper use with a compressor can damage the

controller.

– When using the controller with a compressor,

install a dampening device (such as a needle

valve, header, or surge tank) to dampen

pulsations that can damage the controller or

reduce its life.

– Locate the controller where the ambient temper-

ature will not exceed 150°F (66°C).

– Use pipe compound sparingly to avoid clogging

the hole in the pipe or diaphragm ﬁtting.

– Do not tighten the controller by hand by holding

the case.

➔After installation is complete, check out the prod-

uct operation as provided in these instructions.

7.1 Installation position

➔Controllers must be mounted above the water

line in steam boilers.

➔They can be mounted alongside the pressure

gauge, at a remote location, in a ﬁtting provided

by the boiler manufacturer, or in special mount-

ings on low-water cutoffs.

➔For mounting dimensions, see Technical data,

page 3 (5.1 Dimensions).

➔A steam trap must always be connected be-

tween the controller and the boiler. The steam

trap prevents boiler scale and corrosive vapors

from attacking the diaphragm.

4–1/2 to 5–1/2

(114.3 to 139.7)

Pressure

gauge

Steam trap

(siphon loop)

Tee

Boiler

Controller

1) 1/4"-pipe with 1/4-18 NPT external threads

on both ends and 2-1/4" (57mm) diameter

loop.

7.1.1 Pressure gauge mounting

➔To mount the controller alongside a pressure

gauge, remove the gauge.

➔In its place, install a steam trap (siphon loop) with

a tee on top.

➔Using elbows and pipe nipples, mount the con-

troller and pressure gauge on the ends of the tee

7.1.2 Remote mounting

CAUTION

Excessive vibration at the boiler may affect the

operation of the controller. In these cases, the

controller should be remotely located, subject to

the following:

– All piping must be suitable and properly pitched

to drain all condensation back to the boiler.

– The remote mounting must be solid.

– A steam trap must be used at one end of the

piping.

7.1.3 Boiler mounting

➔If it is not convenient to mount the controller

adjacent to the pressure gauge, install a steam

trap at the location recommended by the boiler

manufacturer, then screw the device directly to

the steam trap.

L408J · Edition 05.23

EN-4

7.1.4 Mounting

1 Mount the controller directly on the main pipe.

2 Insert a tee in the pipe line, and connect a pipe

nipple of appropriate size to the tee.

Controller

(at right angles

to the main pipe line)

Hexagonal

ﬁtting

3 Screw the hexagonal ﬁtting (1/4-18 NPT internal

thread) of the controller to the pipe nipple.

4 To avoid leaks and damage to the case, use a

parallel jaw wrench on the hexagonal ﬁtting close

to the pipe nipple.

5 Do not tighten the controller by hand by holding

the case.

6 Make all pipe connections in accordance with

approved standards.

7 After installation is complete, check out the

product operation as provided in these

instructions.

8 WIRING

WARNING

Electrical shock hazard.

Can cause serious injury, death or equipment.

– Disconnect power supply before beginning

wiring. More than one power supply disconnect

may be required.

– All wiring must comply with applicable local

electrical codes, ordinances and regulations.

1 All wiring must comply with applicable electrical

codes, ordinances and regulations. Use NEC

Class 1 (line voltage) wiring.

2 For normal installations, use moisture-resistant

NO. 14 wire suitable for at least 167°F (75°C) if

you are using the controller with a ﬂame

safeguard primary control or at least 194°F

(90°C) if you are using it with a programming

control.

3 For high temperature installations, use mois-

ture-resistant No. 14 wire, selected for a

temperature rating above the maximum

operating temperature.

4 All models have a terminal block inside the cover

(see Fig. 3) and a 7/8 in. (22mm) hole in one

side for 1/2 in. (13mm) conduit, cable or wires.

Remove the front cover by loosening the screw

at the bottom of the main scale.

5 For wiring, see the diagrams and schematics

below.. Follow the burner or boiler manufacturer

wiring diagram, if provided.

6 Make sure the loads do not exceed the Switch

contact ratings, see page 2 (5 Technical

data).

7 Replace the front cover when wiring is complete.

L408J terminal blocks and internal schematic

L408J1009,

L408J1017

L408J1025,

L408J1033

B(omitted)

breaks R–B,

makes R–W on

pressure rise to

set point

makes on pressure

rise to set point

1) Terminal B omitted for miswiring compliance.

L408J1009 or L408J1017 used as a high limit,

with an alarm circuit

(hot)

B2)

Ground

SPDT controller (high limit)

Alarm

power supply 1)

Flame

safeguard

control,

motor or

other load

1) Provide disconnect means and overload

protection as required.

2) Breaks R–B and makes R–W when pressure

rises to setpoint.

L408J1025 or L408J1033 used as a low limit

(hot)

Ground

SPST controller (low limit)

power supply

Flame

safeguard

control,

motor or

other load

1) Provide disconnect means and overload

protection as required.

2) Breaks R–W when pressure falls to setpoint

minus differential.

L408J · Edition 05.23

EN-5

L408J controlling a Series 61 Motor (Modutrol).

(hot)

B W B

L408J controller Series 61 motor

power supply

1) Provide disconnect means and overload

protection as required.

2) Transformer may be internal or external to

motor.

9 ADJUSTMENT

In all models, the differential is subtractive from the

main scale setpoint. The upper operating point is

determined by the main scale setpoint, while the

lower operating point is determined by the main

scale setting less the differential setting. Operating

points, see below.

R–W

B–R

Differential

(adjustable)

switch action on

pressure rise

indicates closed switch contacts

switch action on

pressure fall

B–R breaks

(R–W makes)

B–R breaks

(R–W makes)

Control

set point

Operation of switch on pressure rise and fall

1 Adjust the main scale setpoint for the desired

operating pressure by turning the main scale

adjusting screw on the top of the case until the

main scale setting indicator is at the desired

value.

2 Adjust the differential setting by turning the

differential adjusting screw until the differential

setting indicator is at the desired value.

➔The scales are marked in psi and kPa.

10 TEST BOILER INSTALLATION

If the controller is being used on a boiler installation,

test it as follows.

1 Note the boiler pressure by checking the boiler

pressure gauge.

➔To perform this test properly, the boiler should

have a pressure reading near the middle of the

controller main scale range.

2 Turn the main scale adjusting screw (see Fig. 8)

until the main scale setting indicator on the

controller corresponds to the boiler pressure

gauge reading.

➔The L408J should make the R-W and break the

R-B circuit automatically when the boiler pres-

sure gauge reading equals or slightly exceeds

the controller setting.

3 If the controller is operating properly, turn the

main scale adjusting screw (see Fig. 8) until the

main scale setting indicator is at the desired

setpoint

L408J · Edition 05.23

EN-6

11 CONTROLLER SEEMS TO OPER-

ATE IMPROPERLY

➔If the controller is suspected of operating im-

properly, it may be checked further as follows.

CAUTION

Please note the following to avoid damage:

– Disconnect all power to the controller!

– Fault-clearance must only be undertaken by

authorized trained personnel.

1 Loosen the cover screw and remove the cover.

2 Connect an ohmmeter between the switch termi-

nals.

Setpoint

decrease

3 Lower the setpoint of the controller (simulating a

pressure increase) through a range greater than

the differential. The switch should either make or

break, depending on the model of the controller.

See the switch action in page 2 (5 Technical

data).

➔If it makes, the ohmmeter will read zero; if it

breaks, the ohmmeter will read inﬁnity.

4 Raise the setpoint of the controller (simulating a

pressure decrease) through a range greater than

the differential. The switch should break or make,

just the opposite of the result before.

12 CHECKOUT

➔After the controller has been installed, wired and

adjusted, it should be tested with the system in

operation.

1 First, allow the system to stabilize.

2 Then, observe the operation of the controller

while raising and lowering its setpoint.

➔Pressure should increase when the setpoint

is raised and decrease when the setpoint is

lowered.

3 Also, check the make and break points of the

controller.

➔If they do not agree with a separate, accurately

calibrated pressure gauge, a slight adjustment of

the scaleplate(s) may be necessary.

➔Use accurate pressure testing equipment when

checking out the controller.

➔Use a separate, calibrated pressure gauge to

verify that the ﬁnal pressure setpoint is within 5%

of the desired value.

13 CERTIFICATION

13.1 UL listed

Underwriters Laboratories Inc. listed: File No.

MP466, vol. 10, Guide No. MBPR.

13.2 CSA approved

Canadian Standards Association (CSA): File No.

LR1620, Guide No. 400E-0

14 DISPOSAL

Devices with electronic components:

WEEE Directive 2012/19/EU – Waste Electrical

and Electronic Equipment Directive

At the end of the product life (number of operat-

ing cycles reached), dispose of the packaging and

product in a corresponding recycling centre. Do not

dispose of the unit with the usual domestic refuse.

Do not burn the product.

On request, old units may be returned carriage paid

to the manufacturer in accordance with the relevant

waste legislation requirements.

We reserve the right to make technical modifications in the interests of progress.

The Honeywell Thermal Solutions family of products includes

Honeywell Combustion Safety, Eclipse, Exothermics, Hauck,

Kromschröder and Maxon. To learn more about our products, visit

ThermalSolutions.honeywell.com or contact your Honeywell Sales

Engineer.

Honeywell Process Solutions

Honeywell Thermal Solutions (HTS)

2101 CityWest Blvd

Houston, TX 77042

United States

ThermalSolutions.honeywell.com

FOR MORE INFORMATION

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