Honeywell 5000 Series User manual

INSTRUCTION SHEET
1 EN1R-9175 0908RA-NE
Subject to change without notice. All rights reserved
V7335A “5000” series
ELECTRIC MODULATING PRESSURE REGULATOR (MODUPLUS®)
APPLICATION
The V7335A ”5000” series electric modulating regulator
(Moduplus®), when installed on VK41../VK81.. series gas
controls, expands their application versatility and provides
the following extra functions:
•Servo pressure regulation
Outlet pressure is held at a constant value regardless of
fluctuations of input pressure.
•Modulating control
Between minimum and maximum outlet pressure gas
supply to the appliance is dependent on the electrical
signal to modulating coil.
•Mechanical limitation of outlet pressure
The minimum and maximum burner pressures are
mechanically adjusted to guarantee good burner
performance in case the modulating control should
become out of range.
The Moduplus®is designed to work together with the W4115
logic control, T7335A thermistor temperature sensor and an
advanced range of micro computer based modulating
controls.
SPECIFICATIONS
In general the specifications of the VK41../VK81.. gas
controls are valid. See instruction sheet EN1R-9162
However the following information is deviating and replaces
therefore the relevant information of that instruction sheet.
Model
Gas controls:
Suffix M: fast opening with electric modulating regulator.
Suffix N: slow opening with electric modulating regulator.
Electric modulating regulator:
V7335A low voltage (Moduplus®)
Adjustment points and dimensions
See fig. 1 page 3
Regulator outlet pressure range
See table 1. page 1
Electrical rating
See table 2 page 2
Electrical connection
The Moduplus® is provided with quick connect 2.8 x 0.8 mm
terminals which are suitable for appropiate receptacles.
Pressure feedback connection
The Moduplus®has a nipple with 6 mm outer diameter for
connection between regulator and combustion chamber of
appliance.
Maximum operating pressure
The Pmax. indication on the housing of the gas control is the
maximum pressure at which the gas control functions safely.
However the maximum operating pressure is limited by the
pressure range of the Moduplus®concerned.
60 mbar for pressure range 1 ... 25mbar / 1 ... 37 mbar
Table 1. Outlet pressure range
Pressure
range (mbar) Setting outlet pressure range (mbar)
Minimum Maximum
1 ... 25 1 ... 12 (min setting + 5) ... 25
1 ... 37 1 ... 25 (min setting + 5) ... 37

EN1R-9175 0908RA-NE 2
Table 2. Electrical rating
WARNING
Do not exceed the maximum current value.
Modulation characteristics
Values are based on increasing current with start at zero.
When current is decreasing from its maximum value the
outlet pressure will be higher.
NOTE:
Good and reliable performance of the Moduplus®is not
only dependent on the Moduplus®itself, but also upon the
reliability of the modulating control and sensor used.
ADJUSTMENT, CHECKOUT AND
MAINTENANCE
IMPORTANT
Adjustments should be made by qualified persons
only.
If the appliance manufacturer supplies checkout
and/or service and maintenance instructions,
carefully follow them. If such instructions are not
provided, then follow the procedure as outlined
below.
Adjustments should be made within the specified
pressure ranges.
Allow time for pressure to stabilize before making
adjustments.
It is recommended that the Moduplus®is operated
a few times to ensure correct setting.
Remove cap before adjustment.
Take care that after any adjustment cap is mounted.
In applications with pressure feedback mount the
cap.
WARNING
Do not dismount parts of the Moduplus®.
Dismounting can cause malfunction of the
Moduplus®.
The maximum pressure setting must first be adjusted to
ensure that burner will safely light up, then the minimum
pressure setting can be adjusted.
Any adjustment of maximum pressure setting influences
minimum pressure setting, thus a min. pressure setting
should always be re-adjusted after.
Adjusting the maximum pressure setting (see fig 1.)
Methode 1:
•Disconnect pressure feedback connection (if applicable).
•Connect a suitable pressure gauge to pipe line or to outlet
pressure tap of gas control concerned, to measure burner
pressure (measuring point must be as near to burner as
possible).
•Disconnect electrical connection of Moduplus®.
•Energize operator, set control in operation and wait until
an outlet pressure is recorded on pressure gauge.
•Push shaft gently downwards by means of a suitable pin
through the hole on the top of the Moduplus®to the
bottom and hold it on.
•If maximum rate pressure needs adjustment then use an
8 mm wrench to turn adjustment screw for maximum
pressure setting clockwise to increase or counter-
clockwise to decrease pressure, until the desired
maximum outlet pressure is obtained. Release shaft.
•Check minimum pressure setting and readjust if
necessary.(according instructions below)
•Mount cap and reconnect pressure feedback connection
(if applicable).
•If minimum and maximum pressures are set, wire the
Moduplus®in circuit.
•Close pressure tap screw
Methode 2:
•Disconnect pressure feedback connection (if applicable).
•Connect a suitable pressure gauge to pipe line or to outlet
pressure tap of gas control concerned, to measure burner
pressure (measuring point must be as near to burner as
possible).
•Make sure that the appliance is in operation and the
Moduplus®coil is energized with maximum current.
•If maximum rate pressure needs adjustment then use an
8 mm wrench to turn adjustment screw for maximum
pressure setting clockwise to increase or counter-
clockwise to decrease pressure, until the desired
maximum outlet pressure is obtained.
•Disconnect electrical connection of Moduplus®
•Check minimum pressure setting and readjust if
necessary. (according instructions below)
•Mount cap and reconnect pressure feedback connection
(if applicable).
•If minimum and maximum pressures are set, wire the
Moduplus®in circuit.
•Close pressure tap screw
Adjusting minimum pressure setting (see fig. 1.)
•Disconnect pressure feedback connection (if applicable).
•Connect a suitable pressure gauge to pipe line or to outlet
pressure tap of gas control concerned, to measure burner
pressure (measuring point must be as near to burner as
possible).
•Disconnect electrical connection of Moduplus®.
•Energize operator, set control in operation and wait until
an outlet pressure is recorded on pressure gauge.
•If minimum rate pressure needs adjustment then use a 5
mm wrench to turn adjustment screw for minimum
pressure setting clockwise to increase or counter-
clockwise to decrease pressure, until the desired
minimum outlet pressure is obtained.
•Check if main burner lights easily and reliable at minimum
pressure.
•Mount cap and reconnect pressure feedback connection
(if applicable).
•Close pressure tap screw
Adjusting intermediate pressure setting
Some controls are able to provide modulating control as well
as a fixed setting.
In case this intermediate pressure setting should be set, it is
Coil Modulation
current dc (mA) Resistance at
20 °C (Ω)
Voltage
(Vdc) Color
12 blue 55 ... 310 31,5 ... 36,5
15 white 45 ... 250 42 ... 46
17 grey 30 ... 165 82 ... 88
28 green 30 ... 165 107,5 ... 117,5

3 EN1R-9175 0908RA-NE
necessary to follow the suppliers instructions regarding the
adjustment of the concerned control. It deals with the
switching from modulating mode to fixed setting mode which
is in most cases is a potentiometer.
The fixed setting mode is very often used for central heating,
where on/off adjustable pressure to burner is required.
This intermediate outlet pressure can in general be
electrically set as follows:
•Disconnect pressure feedback connection (if applicable).
•Connect a suitable pressure gauge to pipe line or to outlet
pressure tap of gas control concerned, to measure burner
pressure (measuring point must be as near to burner as
possible).
•Energize operator, set control in operation and wait until
an outlet pressure is recorded on pressure gauge.
•Make sure Moduplus®is wired in the circuit.
•Start system in fixed setting mode.
•Adjust current as low as needed to obtain the lowest
pressure by using pressure setting means of control.
Mechanical setting of Moduplus®will prevent too low
setting.
•Close pressure tap screw
•Increase the current until desired pressure is obtained by
using pressure setting means of modulating control.
•Mount cap and reconnect pressure feedback connection
(if applicable).
Checkout
After any adjustment, set appliance in operation and observe
through a complete cycle to ensure that burner system
components function correctly.
Maintenance
It is recommended to check yearly the minimum and the
maximum setting and readjust them if necessary.
Fig. 1.
Fig. 2. Dimensions CVI with Moduplus®
E
A
Cap
B
Adjustment screw (5 mm) for minimum pressure setting
C
Adjustment screw (8 mm) for maximum pressure setting
D
2.8 mm AMP terminals
E
Pressure feedback connection
8
2
38
C
D
A
B
140 140
135105*

EN1R-9175 0908RA-NE 4
Manufactered for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Z.A. La Pièce 16, 1180 Rolle, Switzerland by its Autorized Representative:
Automation and Control Solutions
Combustion Controls EMEA
Honeywell BV
Phileas Foggstraat 7
7821 AJ Emmen
The Netherlands
Tel.: +31 (-)591 695911
Fax: +31 (-) 591 695200
http://ecc.emea.honeywell.com
MODUPLUS® TRADELINE
Mounting Moduplus® Tradeline on gas valve. (see fig 3)
•Verify that all parts are present in Moduplus® tradeline
box (1 moduplus®, 1 gasket, 2 screws, 1 cap)
•Shut off gas and power supply, disconnect Moduplus® coil
wiring and disconnect pressure feedback connection (if
applicable)
•Remove old Moduplus® regulator and discard gasket.
Place new gasket at the bottom side of Moduplus®.
Orientation of the gasket must be as indicated in figure 3!
Push gasket over the small bosses (A),so that the bosses
show fully through the gasket.
•Mount Moduplus® on the gas valves.
The electrical connectors of the Moduplus® coil must face
the coil of the gas valve. (see fig. 2)
The 2 mounting screws must be fastened to 3 Nm.
•Switch on gas and power supply, energize operator of gas
valve. Check for outerwall leakage around perimeter of
Moduplus®.
•Adjustmaximum and minimum pressure setting according
chapter ‘Adjustment, Checkout and Maintanance’
•Place cap over adjustment screws until it snaps over
protruding circular boss and reconnect pressure feedback
connection (if applicable)
Fig. 3. Moduplus® Tradeline parts
Cap
Mounting Screw
Gasket
A