Kutzner + Weber H100 User manual

Hearth - Kitchen - Domestic
KUTZNER +WEBER
H100 Fan Controller
INSTALLATION INSTRUCTIONS
Kutzner+ Weber is certified according to DIN EN ISO 9001
KUTZNER +WEBER

H100 IOM
2|Page
Contents
Introduction 3
Component List 3
Specifications 4
H100 Controller Installation 5
Mounting 5
Electrical 5
Terminal Descriptions 6
General I/O Connections 7
Flue System Component Installation 8
Flue Pressure Probe 8
Flue LP4 Pressure Transducer 9
Supply System Component Installation 10
ZPS Outdoor Air Static Pressure Pickup Port 10
Supply LP4 Pressure Transducer 11
CS75 Current Switch 12
GFS Differential Air Pressure Switch 13
Operations 15
Flue System 15
Supply System 16
H100 Controller Menus and Parameters 17
USER Menu 17
Status Screens 17
ADMIN Menu 18
Parameters 18
Modbus Communications 21
Testing and Troubleshooting 26
Pressure Transducer Calibration 26
System Function Tests
Flue System 27
Supply System 28
Alarms 29
General Issues 30
H100 Controller Input Jumper Positions 30
Commissioning 31
Commissioning Procedure 31
Commissioning Form 32
Parameter List 33

H100 IOM
3|Page
H100 Pressure Control System IOM
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. The proper installation and maintenance of this system
will allow years of dependable service. Read carefully before attempting to assemble, install, operate or maintain the
system components described. Protect yourself and others by observing all safety information. Failure to comply with
instructions could result in personal injury and/or property damage!
Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes
and regulations and who are experienced with this type of equipment. Personnel should have a clear
understanding of these instructions and should be aware of general safety precautions.
DANGER! Always disconnect, lock and tag all power sources before installing or servicing.
Failure to disconnect a power source can result in fire, shock or serious injury.
CAUTION! Consult and follow all applicable national, state and local codes. They will supersede this document.
WARNING! No installation, use or maintenance should be done in an explosive or hazardous environment.
Introduction
The H100 controller has been designed to maintain a user configurable flue system pressure and/or control a supply
air system by controlling fan motor speed(s).
H100 Controller features include:
í%DFNOLW/&'GLVSOD\IRUYLVXDOPRQLWRULQJRIV\VWHP
í$GMXVWDEOHV\VWHPSDUDPHWHUV
í+LJKDQGORZIOXHSUHVVXUHDODUPV
í6WDWXVUHOD\RXWSXWV
í7ZRDX[LOLDU\UHOD\RXWSXWV
í0HFKDQLFDOOLPLWLQSXW
í7ZRDQDORJRXWSXWVIRUIDQVSHHGUHIHUHQFHV
í0RGEXV578566HULDOSURWRFROVXSSRUWHG
í$ODUPVQDSVKRWKLVWRU\YLD0RGEXV
í57&ZLWKEDWWHU\EDFNXS
Note: Information contained within this manual may be updated without notice.
Component List
The H100 system is made up of several components dependent on the application:
1. H100 Controller
a. Controller
b. Power supply
2. System Components
a. Flue Control System
i. LP4: pressure transducer
ii. Flue pressure probe and tubing
iii. Draft inducer / flue fan
1. VFD included with induction motors
b. Supply Air System
i. LP4: pressure transducer
ii. Flue pressure probe and tubing
iii. ZPS outdoor air static pressure pickup port
iv. Supply fan
v.CS75 current switch
3. Optional / Additional Components
a. CO detector
b. CS75 current switch
c.GFS differential air pressure switch
d. Alarm buzzer / light

H100 IOM
4|Pa g e
Specifications
H100 Controller
Power Supply 24V AC/DC (12V-30V) Class 2
Power Consumption 100 mA max @ 12 VDC
Protection Circuitry Reverse voltage protected, overvoltage protected,
overcurrent with auto resetting fuse
Relay Output Ratings (Nominal) 2A @ 24V AC/DC individual relay
4A @ 24V AC/DC combined total maximum
Operating Temperature -22-158 °F (-30-70 °C)
Ambient Humidity 10% to 90 % RH non-condensing
LCD Screen Temperature Limitation 0-35 °C (32-95 °F)
Wiring Connections Screw terminal block (14 to 22 AWG)
Enclosure 3.2” w x 4.4” h x 1.2” d (81 x 112 x 30.7 mm)
Housing Flammability rating UL 94-V file E194560
Enclosure Rating IP31
LP4 Pressure Transducer
Power Supply 24V AC/DC (12V-30V) Class 2
Power Consumption 20 mA
Output Signal (design) 0-10 VDC
Pressure Range (design) -1.0 to +1.0 In WC
Maximum Line Pressure 10 psi
Temperature Range 0°F to 150°F (-18°C to 65°C)
Humidity 10% to 90% RH non-condensing
Enclosure Flammability rating UL 94-V Approved
GFS Differential Pressure Switch
Electrical Rating Max. 1.0A resistive / 0.4A Inductive
@250 VAC 50-60 Hz
Pressure Range 0.08 In WC to 1.20 In WC
Max. Operating Pressure 40 In WC
Temperature Range -4F to 140F
CS75 Current Switch
Electrical Rating Max. 500 mA @ 30 VAC/DC 50-60 Hz
Power Supply Self-Powered
Maximum Input Current 75 Amps continuous
Set Point Range 0.75 - 75 Amps adjustable
Output Switch Action Normally Open / SPST
Indicator Status LED
Temperature Range 5F to 140F
Humidity 5% to 90% RH

H100 IOM
5|Pa g e
Installation of the H100 Controller
Before Installation Read these instructions carefully before installing and commissioning the device. Failure to
follow these instructions may result in product damage. Do not use in an explosive or hazardous environment,
with combustible or flammable gases, as a safety or emergency stop device or in any other application where failure
of the product could result in personal injury. Take electrostatic discharge precautions during installation and do not
exceed the device ratings.
Mounting
The H100 controller installs directly on a standard electrical box or flat non-heated surface. The controller should
not be installed in a wet or outdoor environment. Avoid locations with temperatures outside of controller ratings.
Avoid locations that have severe vibrations. Avoid areas with electrical noise created by high power equipment,
devices, and conductors.
To install, the controller must be removed from the terminal base to access the mounting holes. Follow normal
anti-static procedures when handling the controller and be careful not to damage any components.
The controller is hooked to the terminal base at the top edge and must be removed from the bottom edge first. Use a
small screwdriver to carefully pry each bottom corner if necessary. If a security screw is installed on the bottom edge,
then it may have to be loosened or removed also. Tip the controller away from the terminal base and set it aside until
the terminal base is mounted. The terminal base mounting hole locations are shown on Figure 1.
After the terminal base is screwed to an electrical box or surface
using the appropriate holes, pull the wires through the wiring hole in
the center of the terminal base and then make wiring connections.
Once the wiring connections have been completed, verify that the
input terminal jumpers on back of controller board are properly
configured.
Reinstall the controller to terminal base by hooking to the terminal
base from the top and then carefully pressing the lower edge into
the base. Once securely together, tighten security screw at bottom.
Care should be taken not to over tighten security screw.
Figure 1
Electrical
Review the supplied wiring diagram(s) and verify the application
before attempting to connect the H100 controller to any associated
components or equipment. Follow all local electrical and safety
codes, as well as the National Electrical Code (NEC) and the
National Fire Protection Agency (NFPA), where applicable. Follow
the Canadian Electric Code (CEC) in Canada.
Note: Do not locate any low voltage wires in the same conduit
or adjacent to high voltage wiring or used to supply inductive
loads such as motors.
It is recommended that 18 AWG shielded cable is used for all low voltage connections.
Disconnect the power supply before making any connections to prevent electrical shock or equipment damage.
Follow proper electrostatic discharge (ESD) handling procedures when installing the device or equipment damage
may occur.
Power Supply
The H100 controller requires a 24V AC or DC power supply to operate. The device has a half-wave type power supply.
The power supply common is the same as the signal common. Several devices may be connected to one power supply
and share the same signal common.
Use caution when connecting the secondary of the power supply when wiring multiple devices. Ensure that the circuit
ground and common points are the same on all devices.
When using a DC power supply, connect the positive DC voltage to the 24V terminal and the negative power supply common
to the GND terminal. The device is polarity protected and will not operate if the power supply is connected backwards.
Note: the GND terminal is NOT connected to the Relay KCOM terminal.

H100 IOM
6|Page
Installation of the H100 Controller (continued)
Terminal Connections
The H100 controller uses discrete sinking inputs. Use only a dry contact to signal a
remote run command or limit status.
Warning! Do not apply external power to the H100 inputs.
The H100 controller is rated for low voltage (<30V) only. Applying high voltage to the
H100 controller will cause damage to device. Install low voltage isolation relays when
using the status contacts with a high voltage control circuit.
The H100 status relay contact outputs share the same common input (KCOM). Install
low voltage relays to separate circuits when using the status contacts to connect control
circuits with different power supplies.
H100 Controller Terminals
Terminal Description
GND Power supply and signal common
24V 24 V AC/DC power supply input
AI1 Remote run command input
AI4 Limit input
AI7 Flue pressure transducer input signal 0-10 VDC
AI8 Supply pressure transducer input signal 0-10 VDC
AO1 Flue fan speed reference signal output 0-10 VDC
AO2 Supply fan speed reference signal output 0-10 VDC
KCOM Relay common input
K1 Fireplace enable output (N.O.)
K2 Auxiliary device enable output (N.O.)
K3 Auxiliary device enable output (N.O.)
K4 Alarm status output (N.O.)
K5 Alarm status output (N.O.)
485+ RS485 + signal
485- RS485 - signal
485G RS485 common / ground

H100 IOM
7|Page
Installation of the H100 Controller (continued)
Run Command
The H100 may be enabled locally, via the LCD, by setting with the H100 run command
parameter “RUN CMD” to RUN.
When the ability to enable and disable the system remotely is required, the H100 run
command parameter “RUN CMD” is set to REMOTE and a dry contact or switch is
installed between Terminal AI1 and ground on the H100 terminal base (Figure 3).
GND
AI1
Remote Run
Command Input
Dry Contact - Field Installed
Status Relay Connections
The H100 has five dry SPST relay contacts for status outputs. The status relays may be
used in different ways depending on the specific application (Figure 5).
The relay contacts are rated for low voltage (<30V). Install low voltage isolation relays
when using the status contacts with a high voltage control circuit.
The H100 status relay contact outputs share the same common input (KCOM). Install
low voltage relays to separate circuits when using the status contacts to connect control
circuits with different power supplies (Figure 4).
To
Controlled Device
-
+
ISO Relay
KCOM
K#
V+V-
Typical Status Relay Applications
KCOM
K1
RELAY OUTPUTS
2A @ 24V ANY ONE RELAY
4A @ 24V COMBINED TOTAL
K2
K3
K4
K5
Alarm
Alarm
Auxiliary Device Enable
Run
Auxiliary Device Enable
Damper / Louver
Fireplace Ignition or Gas Valve
VFD
Buzzer / Light
General Use
+24 VDC
Figure 3
Figure 4
Figure 5

H100 IOM
8|Page
Flue Pressure Probe Installation
It is recommended to install the probe as illustrated below for a typical gas fireplace flue
system. There may however be special situations or flue layouts that will dictate an
optional location.
Figure 6
1"MAXIMUM PENETRATION
PRESSURE TUBING
TYPICAL FLUE
TYPICAL FIREPLACE
W/ GAS LOG SET
FLOW TO FAN
CB TERMINATION FAN
HIGH PORT
LOW PORT
LEFT OPEN
LP4
PRESSURE
TRANSDUCER
FLUE PROBE
MINIMUM
DISTANCE
5 FT.
FLUE PROBE
Note: the flue pressure probe should be cut to be as close to flush to the inner
wall of flue as possible.

H100 IOM
9|Page
Figure 7
Flue LP4 Pressure Transducer Installation
Mounting
Locate the LP4 Pressure Transducer within 5 ft. of flue probe if using supplied tubing.
Mount vertically on a non-heated surface.
Avoid locations with severe vibrations, extreme heat, or excessive moisture. Ensure there is enough space
around the unit to connect the pressure tubing without kinking.
Remove the enclosure cover. Secure with a minimum of two screws using holes inside the enclosure base.
Pneumatic Connections
The two pressure ports on the transducer enclosure are labeled High and Low. The output signal is correct
when the flue pressure is measured on the High port.
Connect the supplied high temperature tubing between the flue pressure probe and the High port on the LP4
transducer (Figures 6 & 7).
If mounting location is farther than the supplied 5ft of tubing, use 0.25" I.D. rigid tubing. Do not exceed 100ft. Cut 2
short pieces of the supplied high temperature tubing and use the pieces as couplings on each end of field supplied
tubing for proper connection sealing and heat isolation.
Arrange the tubing to minimize stress on the connections. Ensure there are no kinks or potential condensate traps
in the tubing. It is recommended that the tubing slope back to the flue for draining to prevent condensate from
collecting in the sensing line.
Ensure the tubing is clean and do not allow material to fall into the pressure ports as contamination could
damage the sensor. When removing tubing, use care to avoid damaging the ports.
HIGH
LOW
++
LOW
+
_
HIGH
SZ
COM OUT EXC
ADJUST
NO
1/2" Conduit Connection
Enclosure Cover Mounting Holes
+ +
LOW
+
_
HIGH
SZ
COM OUT EXC
ADJUST
NO
Figure 8
Electrical
The enclosure has a standard ½” conduit opening and may be installed with either conduit and a conduit coupler or a
cable gland type fitting.
The transducer has standard screw block connectors marked COM, OUT and EXC. It is recommended that a
shielded 3 conductor cable at 18 AWG be used for connections.
Note: Do not run in the same conduit with high voltage wiring or wiring used to supply inductive loads
such as motors.
Disconnect the power supply before making any connections to prevent electrical shock or equipment damage. Make
all connections in accordance with national and local electrical codes.
Connections
Location To LP4 Terminal
Power Supply +V ↔EXC
Power Supply -V ↔COM
H100 Terminal AI7 ↔OUT
The pressure transducer has a half wave power supply
The pressure transducer supply inputs are reverse
voltage protected and will not operate if 24VDC
connections are reversed
Do not apply power to the OUT terminal, damage to the
LP4 will occur.

H100 IOM
10|Page
ZPS Outdoor Air Static Pressure Pickup Port
Mounting
The ZPS outdoor air static pressure pickup port should be mounted at least 12 inches above surrounding obstacles
so that you get the true static pressure reading. Mount the unit so that other equipment on the building cannot
physically or mechanically obstruct it. Do not mount under awnings or other projections within fifteen feet.
(Figure 9: option 1)
If the unit cannot be roof mounted with an unobstructed view of the horizon, then side-wall mount the unit (Figure 9:
option 2). Do not mount near inlet louvers, economizers, intake or exhaust fans, or barometric dampers. Do not
mount near building corners. Mount near the center of the building away from balconies and opening windows.
Mount at least 24 inches from the wall using field supplied 1/2" EMT conduit.
Option1
AboveRoofLine
Option2
SideWallMount
Figure 9
Figure 10
Pneumatic Connection
The pressure tubing transmits the outdoor pressure signal from the
ZPS pressure pickup port unit to inside the building envelope to the
LP4 (supply) transducer.
Route the field supplied tubing from the supply air system LP4
transducer to and through the 1/2" EMT mounting support conduit.
Route the tubing to minimize stress on the connections and ensure
there are no kinks in the tubing.
Tubing Size I.D. Maximum Distance
3/16” 100 ft.
1/4” 300 ft.
3/8” 900 ft.
The ZPS pressure pickup port unit has a barb fitting to connect the
pressure tubing. Connect tubing to barb fitting. Slide the pressure
port unit on to the 1/2" EMT conduit mounting support and tighten
the pickup port's fitting screw until unit is secured onto the EMT
mounting support.

H100 IOM
11|Page
Figure 11
Supply LP4 Pressure Transducer Installation
Mounting
Locate in an accessible location in the room that is to be monitored by the H100 controller. It is recommended
to mount LP4 48 to 60 inches above floor level. Avoid mounting near fans, louvers, or doorways.
Mount vertically on a non-heated surface. Avoid locations with severe vibrations, extreme heat, or excessive
moisture. Ensure there is enough space around the unit to connect the pressure tubing without kinking. Remove
the enclosure cover. Secure with a minimum of two screws using holes inside the enclosure base.
Pneumatic Connections
The two pressure ports on the enclosure are labeled High and Low. The output signal reads a positive value when
the port pressure is higher on the High port than the Low port so ensure these ports are connected correctly.
Connect the tubing between the ZPS outdoor air static pressure port and the Low port on the LP4 transmitter
(Figures 9-11). Cut a short piece of the supplied tubing and use as a coupling for proper sealing and ease of
installation if hard tubing is used as sensing line.
Arrange the tubing to minimize stress on the connections. Ensure there are no kinks or potential condensate traps
in the tubing. It is recommended that the tubing slope away from the LP4 to prevent any collected condensate from
entering the LP4 transducer.
Ensure the tubing is clean and do not allow material to fall into the pressure ports as contamination could damage the
sensor.
HIGH
LOW
++
LOW
+
_
HIGH
SZ
COM OUT EXC
ADJUST
NO
1/2" Conduit Connection
Enclosure Cover Mounting Holes Figure 12
+ +
LOW
+
_
HIGH
SZ
COM OUT EXC
ADJUST
NO
Electrical
The enclosure has a standard ½” conduit opening and may be installed with either conduit and a conduit coupler or a
cable gland type fitting.
The transducer has standard screw block connectors marked COM, OUT and EXC. It is recommended that a
shielded 3 conductor cable at 18 AWG be used for connections.
Note: Do not run in the same conduit with high voltage wiring or wiring used to supply inductive loads
such as motors.
Disconnect the power supply before making any connections to prevent electrical shock or equipment damage. Make
all connections in accordance with national and local electrical codes.
Connections
Location To LP4 Terminal
Power Supply +V ↔EXC
Power Supply -V ↔COM
H100 Terminal AI8 ↔OUT
The pressure transducer has a half wave power supply
The pressure transducer supply inputs are reverse voltage
protected and will not operate if 24VDC connections are
reversed
Do not apply power to the OUT terminal, damage to the LP4
will occur.

H100 IOM
12|Page
CS75 Current Switch Installation
The CS75 current switch monitors line current of the supply fan for proof of operation. The switch closes the output
contacts and energizes an onboard LED when the adjustable trip point is exceeded. The CS75 factory set trip point is
0.75A with a maximum adjustment range between 0.75 to 75A. The switch should be adjusted for the specific
installation and site conditions for proper system operation.
Mounting
Check the CS75 current switch for damages. Do not use if damaged!
Do not mount the switch on uneven, hot, or extreme vibrating surfaces!
Mount the CS75 using two screws through the holes in the base. Install
within an appropriate electrical enclosure. Do not tighten the screws too
much, to avoid damaging the CS75 base.
Electrical
Make sure that all voltage sources are secured before making any
electrical connections!
Disconnect the power supply before making any connections to prevent electrical shock or equipment damage.
Make all connections in accordance with national and local electrical codes. Route the load conductor to be
monitored through the sensor hole in the CS75 current switch. Ensure the conductors are insulated and in good
condition.
Figure 13
Figure 14
Figure 15
Switch Adjustment
The CS is factory set to switch at 0.75 Amps the status LED
should be lit, and the contacts should be closed if the supply fan
motor draws more than 0.75 Amps at minimum speed.
With the supply fan running at minimum speed, rotate the multi-turn set point pot counter-clockwise until the
status LED turns off. Then slowly turn the pot clockwise until the LED just comes on. Turn clockwise slightly more to
eliminate false switching.
Test setting using a voltmeter across the contacts to verify switch operation. Disable the H100 controller. The supply fan
should go into standby mode. The CS contacts should open and the LED off. If not readjust the CS switch and retest. After
passing this test the CS is now set to detect the supply fan operational condition.
For applications with very small load currents at minimum speed (such as less than 1 Amp), wrap the monitored
conductor through the sensor aperture several times to increase the current measured by the sensor.
For example, to monitor a 0-1 Amp load with a CS75, wrap the conductor through the sensor aperture 5 times so the
sensor sees 0-5 Amps. For any application with multiple wraps, note that the CS75 maximum current rating must be
divided by the number of wraps. For example, with one wrap the maximum current is 75 Amps, with 5 wraps the
maximum current is 75/5 = 15 Amps. Ensure the load current is < 15 Amps or the device may overheat and be
damaged.
With the sensor installed, energize supply fan. Enable the
H100 controller and adjust so that the supply fan is running at
minimum speed.
Connections
H100 Terminal To CS75 Terminal
GND ↔either
AI4 ↔either
Note: This is a low voltage circuit. Do not runlow voltage conductors with high voltage conductors.

H100 IOM
13|Page
GFS Differential Air Pressure Switch Installation
The GFS differential air pressure switch monitors outlet pressure of the supply fan for proof of operation. The
GFS can be used as an alternate or complementary device to the CS75 current switch.
The GFS switch normally open contact closes when the adjustable trip point is exceeded. The GFS factory set trip
point is 0.08 "WC with a maximum adjustment range between 0.08 to 0.8 "WC. The switch should be adjusted for the
specific installation and site conditions for proper system operation.
Mounting
Check the pressure switch for damages. Do not use if damaged! Do not mount the pressure switch on uneven, hot, or
vibrating surfaces! Do not tighten the screws too much, to avoid deforming of the device’s base. Mount the pressure
switch with the pressure connections pointing downwards, to drain condensation moisture which might occur. In
general, the mounting with two screws next to each other is sufficient. The maximum diameter of the screws must not
be bigger than 0.315" (8 mm).
Figure 16
Pneumatic Connections
Remove plastic shipping caps from the pressure ports on the end of the GFS enclosure labeled P1(+) and P2(-)
(Figure 16).
Option 1: Connect the tubing between the pressure probe on the discharge side of the supply fan outlet or duct and
the P1(+) on the GFS (Figure 17). Use the supplied 0.170” I.D. flexible tubing for the pressure connections.
Option 2 (low pressure applications): Connect the tubing between the pressure probe on the discharge side of
the supply fan outlet or duct and the P1(+) on the GFS. Install a second pressure probe on the inlet side of the fan
or duct. Connect additional pressure tube to the P2(-) port.
Arrange the tubing to minimize stress on the connections and ensure there are no kinks in the tubing. Ensure the
tubing is clean and do not allow material to fall into the pressure ports as contamination could damage the switch or
block pressure signal.
Figure 17

H100 IOM
14 |Page
GFS Differential Air Pressure Switch Installation (continued)
Electrical
Make sure that all voltage sources are secured before making any electrical connections!
Disconnect the power supply before making any connections to prevent electrical shock or equipment damage.
Make all connections in accordance with national and local electrical codes. Make and verify connections per
supplied system wiring diagram.
Note: This is a low voltage circuit. Do not run low voltage conductors with high voltage conductors
Insert a conduit tube with 1/2” thread and tighten with a torque of 2.5 Nm. Assemble flex- and conductors accordingly.
The connections are intended for 0.25" (6.3 mm) crimp-type sockets. The switch (P) in the pressure switch is
designed as a change-over contact. Pole 3 (COM) closes to pole 2 (NO) at increasing pressure and to pole 1 (NC)
at decreasing pressure.
Connections for Supply System
H100 Terminal To GFS Terminal
GND ↔3
AI4 ↔2
Figure 18
Switching Pressure Adjustment
Make sure that no voltage is applied to the electrical connections, before any settings on the pressure
switch are carried out.
Set the desired pressure, which trips the switch at increasing pressure, on the setting button using a
screwdriver. When the pressure falls, the switch returns into its resting position, as soon as the pressure falls
below the set switching differential. Place the cover and screw it to the pressure switch. Do not operate the
system until the housing is closed.
Check the trip and reset pressure by slowly increasing and decreasing pressure. Switch should be
adjusted so that it makes upon supply fan enabling and opens when supply fan stops. If more switch
sensitivity is needed refer to pneumatic connections option 2.
Additionally, if system discharge is open to a space, the supply fan minimum speed setting of the H100 may be
increased till the GFS switch makes or the supply fan duct outlet adjusted slightly to increase discharge back
pressure.

H100 IOM
15|Page
Flue System Operation
The H100 controller flue system operation allows the system to maintain a desired flue pressure for the proper
exhausting of the flue. The H100 controller has been specifically programmed for this application. The controller
contains many adjustable parameters allowing the operation to be tuned for specific application requirements.
Sequence of Operation
1. Standby: system is hibernating waiting for a run command signal
2. External Limit Check: controller verifies that the external limit circuit is complete
3. Pressure Limit Check: controller verifies that the pressure limits are in range before enabling the run relay
4. Run: controller enables the run relay and resets release timer
5. Purge: allows system to temporarily operate after the run command has been secured
Flue Fan Modes
1. Modulate
2. Manual
The modulate mode adjusts the flue fan speed by
comparing the set point pressure and the actual
pressure measured by the transducer. As the
measured pressure increases above the set point
pressure the PI controller increases the fan speed to
compensate. As the measured pressure decreases
below the set point pressure the PI controller
decreases the fan speed.
The manual selection operates the flue fan at the set
manual speed setting when there is a run command.
The flue fan operation has two modes of
operation that may be selected.
Alarms and Limits
If an alarm event occurs, the H100 controller will annunciate the condition via the LCD, de-energizes the run relay
and enables the alarm relays.
The alarm reset is automatic, the H100 controller will continue to operate the flue fan if there is a run command.
The release time function is active until the run relay is enabled. The release time is the maximum length of time
during the initial run command that the system can operate with the run relay disabled. A release alarm will occur
after the release time expiration. The release timer is reset when all the limits prove, and the run relay is enabled or
when the run command is secured.
If the limit circuit opens, the limit timer for the circuit begins timing out. If the limit circuit is enabled before the limit
timer times out, the timer is reset, and the system continues normal operation. If the limit does not recover before
the time out, an alarm notification is sent, and the run relay contact opens till the alarm condition is clear.
If the flue pressure becomes higher or lower than the high and low pressure limits an alarm delay timer begins timing
out. If the flue system pressure recovers before the alarm times out the timer is reset, and the system continues
normal operation. If the system pressure does not recover before the alarm time out, an alarm notification is sent, and
the run relay contact is opened till the alarm condition is clear.
In some cases, the low-pressure limit bypass should be enabled. The low-pressure limit bypass is a special function
used when the flue pressure is below the low-pressure limit setting prior to the system start. This setting temporarily
allows the system to run and the flue system to load before monitoring the low-pressure limit.
Note: All other alarm limits are still active.

H100 IOM
16|Page
Supply System Operation
The H100 controller supply system operation allows the system to maintain a desired supply pressure or makeup
volume. The H100 controller has been specifically programmed for this application. The controller contains many
adjustable parameters allowing the operation to be tuned for specific application requirements.
Sequence of Operation
1. Standby: system is hibernating waiting for an appliance demand signal
2. External Limit Check: controller verifies that the external limit circuit is complete
3. Run: controller enables the appliances and resets release timer
4. Purge: allows system to temporarily operate after the run command has been secured
Supply Fan Modes
1. Modulate
2. Manual
The modulate mode adjusts the fan speed by
comparing the set point pressure and the actual
pressure measured by the transducer. As the
measured pressure increases above the set point
pressure the PI controller decreases the supply fan
speed to compensate. As the measured pressure
decreases below the set point pressure the PI
controller increases the supply fan speed.
The manual selection operates the supply fan at the set
manual speed setting when there is a run command.
The supply fan operation has two modes of operation
that may be selected.
Alarms and Limits
If an alarm event occurs, the H100 controller will annunciate the condition via the LCD, de-energizes the run relay
and enables the alarm relays.
The alarm reset is automatic, the H100 controller will continue to operate the supply fan if there is a run command.
The release time function is active until the run relay is enabled. The release time is the maximum length of time
during the initial run command that the system can operate with the run relay disabled. A release alarm will occur
after the release time expiration. The release timer is reset when all the limits prove, and the run relay is enabled or
when the run command is secured.
If the limit circuit opens, the limit timer for that circuit begins timing out. If the limit circuit is enabled before the limit
timer times out, the timer is reset, and the system continues normal operation. If the limit does not recover before
the time out, an alarm notification is sent, and the run relay contact opens till the alarm condition is clear.

H100 IOM
17|Page
Menus
The H100 LCD has two separate menus. The User menu and the Admin menu. The User menu is used for
system monitoring and the Admin menu is used to access the system operation parameter settings.
The menu screens are in a linear structure and scroll in both directions.
USER Menu Navigation
The USER menu is the default menu. The USER menu only allows access to view system statuses and the system
reset parameter.
Navigating the USER Menu
Use the ◄ key or the ► key on the front of the H100 controller to scroll to the desired status to view.
The H100 controller will return to the home screen after 5 minutes of non-use. The H100 controller will turn off
the LCD backlight and hibernate after 60 seconds at the home screen without use. To wake the H100
controller press any key once.
Alarm Log
The Alarm Log default is set to show only active alarms. The Alarm Log may also be set to save and show the last
past or first present active alarm. When the Alarm Log is set to capture alarms, the alarm log may be cleared by the
Alarm Log parameter in the ADMIN menu by cycling the parameter when no alarms are active.
Changing the Run Command setting: Press the ▼ key or the ▲ key while at the “RUN CMD” screen.
Screen Description Range Default
RUN
CMD
REMOTE = uses the remote input
AI1 status for run command
OFF = System in standby
RUN = local demand to run
When set and left in RUN, the system will
continue to operate regardless of the
remote input status.
REMOTE
OFF
RUN
REMOTE
Run Command Override: press the
override button on bottom of H100
controller and hold for 3 seconds to
disable and lockout the H100. To re-
enable the H100 for operations press
and hold button again for 3 seconds.
USER Menu
Screen Value Description
Status Home
Screen
STANDBY System not operating and waiting for appliance demand
LMT HOLD Controller checking external limit circuit
PRS HOLD Controller checking pressure limits
RUNNING System in normal operation, run relay contact is closed
PURGING Remote demand secured, system purging
ALARM Alarm condition active
DISABLED H100 is disabled from operation by the run command override
CONFIG.. H100 control application(s) not selected
H 1.00 H100 initializing
FLUE PRS (1.00) – 1.00 WC Actual measured flue system pressure
SPLY PRS (1.00) – 1.00 WC Actual measured supply system pressure
DF OUT 0.00 – 10.00 VDC Controller output to flue fan
SF OUT 0.00 – 10.00 VDC Controller output to supply fan
REMOTE OFF / ON Remote input status
LIMIT OFF / ON Limit input status
RUN RLY OFF / ON Run enable relay status
AUX RLYS OFF / ON Auxiliary relay statuses
ALM LOG
NO ALARM No alarms are active or have been recorded
LIMIT Limit circuit open
HIGH PRS High pressure limit exceeded
LOW PRS Low pressure limit exceeded
RELEASE Timer expired before the run relay was enabled
ERROR The high and low-pressure limit settings are reversed

H100 IOM
18|Page
ADMIN Menu Navigation
The ADMIN menu allows access to the system operation parameter settings.
Entering the ADMIN menu:
Press and hold both the ◄ key and the ► key on the front of the H100 controller till ADMIN is shown on LCD display.
Scrolling to a parameter:
Press the ◄ key or the ► key on the front of the H100 controller.
Changing the parameter setting:
Press the ▼ key or the ▲ key. The new setting is automatically saved to the H100 controller memory. Hold
key to scroll faster for numeric settings.
Exiting the ADMIN menu:
Press and hold both the ◄ key and the ► key on the front of the H100 controller till USER is shown on LCD
display. If left in the ADMIN menu longer than 5 minutes without use the H100 controller will return to the
USER menu home screen automatically.
ADMIN Parameters
FLUE FAN
Parameter Description Range Default
FLUE CTRL Enables flue control operation ON / OFF ON
FF MODE
Flue fan speed control type
Modulate = variable speed PI control
Manual = fixed speed
MODULATE
MANUAL MODULATE
FLUE SP Flue pressure set point for PI control (0.75) – (0.02) WC -0.05
FLUE P
Proportional is the change of output proportional to
present error between FLUE SP and the measured
flue pressure
The larger the value the more aggressive the
control output
1 – 999 % 50
FLUE I
Integral time is the error correction based on the
sum of recent errors over time
The larger the value the faster the control action
0 – 900 %/S 5
FLUE DB Dead band above and below the FLUE SP before
the PI control reacts to a pressure change 0 – 0.10 WC 0.02
FLUE MAN Flue fan manual output percentage when operating 0 – 100 % 25
FLUE MIN Flue fan range minimum output voltage when
operating 0 – 10.00 VDC 2.00
FLUE MAX Flue fan range maximum output voltage when
operating 0 – 10.00 VDC 10.00
Tech Tip: Control Reaction Time
Start with the proportional setting. The proportional setting makes a larger impact on the stability and reaction of the
controller. After finding the rough settings, make small changes and allow the system to stabilize before making more
adjustments. Use the integral time parameter for finer adjustments.
On turbulent systems, adjusting the transducer filter parameter F FLTR should be done first to smooth the pressure
signal before trying to adjust the control reaction.

H100 IOM
19|Page
ADMIN Parameters (continued)
SUPPLY FAN
Parameter Description Range Default
SPLY CTRL Enables supply control operation ON / OFF OFF
SF MODE
Supply fan speed control type
Modulate = variable speed PI control
Manual = fixed speed
MODULATE
MANUAL MODULATE
SPLY SP Supply pressure set point for PI control (1.00) – 1.00 WC 0.00
SPLY P
Proportional is the change of output proportional to
present error between SPLY SP and the measured
supply pressure
The larger the value the more aggressive the
control output
1 – 999 % 50
SPLY I
Integral time is the error correction based on the
sum of recent errors over time
The larger the value the faster the control action
0 – 900 %/S 5
SPLY DB Dead band above and below the SPLY SP before
the PI control reacts to a pressure change 0 – 0.10 WC 0.02
SPLY MAN Supply fan manual output percentage when
operating 0 – 100 % 25
SPLY MIN Supply fan range minimum output voltage when
operating 0 – 10.00 VDC 2.00
SPLY MAX Supply fan range maximum output voltage when
operating 0 – 10.00 VDC 10.00
Tech Tip: Control Reaction Time
Start with the proportional setting. The proportional setting makes a larger impact on the stability and reaction of the
controller. After finding the rough settings, make small changes and allow the system to stabilize before making more
adjustments. Use the integral time parameter for finer adjustments.
On turbulent systems, adjusting the transducer filter parameter S FLTR should be done first to smooth the pressure
signal before trying to adjust the control reaction.
Parameter Description Range Default
FLUE HI
Flue high pressure limit
Highest pressure the flue system can operate
Must be set to a higher pressure than set point
(0.80) – (0.01) WC -0.02
FLUE LO
Flue low pressure limit
Lowest pressure the flue system can operate
Must be set to a lower pressure than set point
(0.80) – 0.80 WC -0.80
PL DLY
Flue pressure limit delay
The timer delays the pressure limit alarms and the
disabling of the run enable output when the pressure
exceeds either the high or low-pressure limit
1 – 120 S 30
BYPASS Delays function of the flue low pressure limit
during start-up to allow system to load 0 – 120 S 30
LMT DLY Delays alarm and the disabling of the run output
when the limit circuit opens 1 – 120 S 15
ALM LOG
ON = shows active alarm and saves event
OFF = clears alarm status after each event
To reset the alarm log, select OFF with no alarm
event active. Then select ON to re-enable the alarm
log capture function.
ON / OFF OFF
LIMITS

H100 IOM
20|Page
Parameters (continued)
OP TIMER
Parameter Description Range Default
PURGE
The length of time the H100 controller
continues to operate after the run commands
are disabled
0 – 300 S 30
TRANSDUCER
Parameter Description Range Default
F FLTR
Data averaging filter of the flue pressure
transducer analog signal input
In a turbulent flow or noisy pressure
environment increase setting until the pressure
display swing is reduced
A lower value provides the fastest response
but allows higher analog input noise
Too large of value will cause slow control
reaction
0 – 100 % 4
F ZERO Zero reference adjustment of the flue pressure
transducer signal input (0.25) – 0.25 WC 0.00
S FLTR Data averaging filter of the supply pressure
transducer analog signal input0 – 100 % 4
S ZERO Zero reference adjustment of the supply
pressure transducer signal input (0.25) – 0.25 WC 0.00
MODBUS COMMS
Parameter Description Range Default
ADDRESS Modbus network device address 1 – 253 1