Honeywell S7999B User Manual

S7999B, S7999C SOLA
Local Operator Interface

• From behind into a panel cutout (5.45 in. W X 4.3 in. H)
using 4 #6-32 screws, nuts and 4 standoffs (provided).

Wiring connections to the S7999C are made via a 4-pin
connector on the back of the display.

NOTE: If display S7999B is used to monitor a lead/lag sys-

tem, display S7999C can NOT be used.

FEATURES

• Individual boiler status, configuration, history, and
diagnostics.

• Allows configuration and monitoring of the Sola
Controls (R7910A Hydronic Controls or R7911 Steam
Control) burner control sequence, flame signal,
diagnostics, historical files, and faults.

APPLICATION

The S7999B and S7999C are microprocessor-based touch­screen Operator Interface (OI) displays that provide an
operator interface for monitoring and configuring parameters
in the Sola Hydronic Control and Sola Steam Control system.

The S7999B can be used to monitor an individual boiler but is
primarily used for multiple boiler applications in a lead/lag
arrangement. COM 2 port is available for Building Automation
applications. The S7999B display is flush mounted into a
panel cutout (8-1/8 in. W x 5-7/8 in. H). Wiring connections to
the S7999B are through a removable 9-pin wiring header.

The S7999C display is used for individual boiler monitoring.
The S7999C is mounted:

• onto a panel using the wallplate provided.

• from the front into a panel cutout (7.6 in. W X 5.4 in. H)
using 4 #6-32 screws and nuts (provided).

• S7999B OI Display only:

— Allows switching view between multiple boilers
— Allows viewing Lead-Lag Master
— Ethernet port for downloading software upgrades

(when required)

— Real-time data trending analysis and transferring

saved trend data to Excel spreadsheet.
— Audible Alarm
— COM 2 Modbus port for Building Automation System

applications.
— LED indicators:

• Power

•Network

•COM 2

•COM 1

— Models available:

• S7999B1026 has Blue Border

• S7999B1067 has Black Border

• S7999C OI Display only:

PRODUCT DATA

Contents

Preface ............................................................................. 2

Specifications ................................................................... 3

Installation Instructions (S7999B OI Display) ................... 4

Wiring (S7999B OI Display) ............................................. 4

Starting the S7999B OI Display ........................................ 7

Configuration .................................................................... 20

Details .............................................................................. 38

R7910A or R7911 Diagnostics ......................................... 44

S7999B or S7999C Display Setup and Diagnostics ......... 47

Advanced Setup ............................................................... 48

Table 61 Configurable Parameters. .................................. 53

Table 62 Other Tables. ..................................................... 61

65-0303-05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

— MMC Port for installing software upgrades (when

required)

— LED indicators:

• Power

•COM

— Models available:

• S7999C1008 has white border

• S7999C1016 has blue border

• S7999C1040 has black border

• Allows for lead/lag commissioning.

• Locates attached boiler(s).

• Allows boiler naming.

• Color 3.5 in. x 4.625 in. (5.7 in. diagonal) user interface
display.

• Graphic user interface.

• Touch screen.

• Communication between the OI Displays and the
SOLA Controls uses Modbus™.

• LED indicators (S7999C):

•Power

•COM

• Flush mounting.

• Touch screen disable for screen cleaning.

• 12 Vdc power supply (included).

• Screen saver.

• Contrast control.

• Volume control.

PREFACE

This User Guide is intended to provide a general overview of
the S7999B or S7999C Operator Interface (OI) Displays. The
general overview goes to page 20 and the actual configuration
begins on page 20.

It is intended to guide you through the features and operation
of the OI Display as you interface with the R7910A or R7911
Sola control and establish the Parameter points of the system.

Note that this sheet shows all parameters. The actual product
may have parameters made invisible or Read Only by
Honeywell as they may not apply to the product.

Use the Product Data Sheet for the Sola Controls (form 65-

0303) as a guide and explanation of the parameters that are
being programmed.

SOFTWARE UPGRADE

S7999B Only

You can download new software for the OI Display through
the Internet. Downloading software should only be done when
recommended by Honeywell. This feature is intended to
permit field upgrades for bug fixes and to install new features.

Requirements for downloading new software:

• Ethernet connection for Internet access (RJ45 male
connector). Carefully insert the RJ45 connector into the
Ethernet jack in the lower right corner on the back of the
display to ensure no damage to the jack.

• Dynamic IP addressing (from DHCP server).

IMPORTANT

If these requirements can’t be met at the location of
the OI Display, this procedure should not be done or
the OI Display should be moved to a location where
these requirements can be met. Failure to satisfy
these requirements can result in the OI Display
becoming inoperable when the upgrade steps are
followed.

The above requirements can be checked prior to execution of
the software upgrade procedure on the Ethernet Setup page
(see Advanced Setup section). On the Ethernet Setup page a
connectivity check can be performed to validate whether
access to the Honeywell server is possible.

The OI Display must be reset to initiate the download
procedure. Initial boot procedure of the device permits the
user to enter into Advanced Startup options within the first five
seconds after power up.

Follow these steps:

1. Select the Advanced Startup Options button. A Warning
message is displayed. If you don’t want to proceed with
the software upgrade, you can cancel the procedure at
this time.

2. Select OK to proceed.

3. Select the “Force Application Update” checkbox.

4. Deselect the “Use Existing Application” checkbox.

5. Select the Continue button.

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:

1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).

2. Honeywell Customer Care

1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

65-0303—05 2

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

6-21/32

(169)

9-7/16 (240)

7-19/32 (193)

1-33/64

(39)

M29867A

PANEL HOLE CUTOUT SIZE 7-19/32 (193) WIDE X 5-13/32 (137) HIGH FOR S7999B DISPLAY 7.6 WIDE X 5.4 HIGH..1

1

5-13/32

(137)

1

8-15/16 (227)

3-1/2

(89)

The software upgrade is automatic after the above steps. The
OI Display connects to the Honeywell server, which verifies the
configuration file, erases the old application and downloads the
new one.

The OI Display may have difficulty finding the new
configuration file at first. In this case, the procedure
automatically starts over again until it works.

S7999C Only

Software upgrades for S7999C OI Display (when needed) will
be provided by Honeywell and are accomplished through the
MMC port located on the top back of the device.

SPECIFICATIONS

Electrical Ratings:

+12 Vdc input, maximum of 500 mA current drain.
Included Power Supply for S7999B:

Inputs: 85 to 264 Vac, 47 to 63 Hz; 120 to 370 Vdc.
Output: 12 Vdc; 0 to 2.1 A.
Power: 25 W.

Included Power Supply for S7999C:

Inputs: 100 to 240 Vac.
Output: 12 Vdc; 0.42 A.
Power: 25 W.

Operating Temperature: 32°F to 122°F (0°C to 50°C)

Storage/Shipping Temperature: -40°F to 158°F

(-40°C to 70°C).

Humidity:

85% maximum relative humidity.

Approvals:

FCC Part 15, Class A Digital Device
Underwriter’s Laboratories, Inc. (UL) (cUL) Component

Recognized (for non-continuous operation): File Number
MH20613 (MCCZ)

Canada: ICES-003

Dimensions: See Fig. 1.

Replacement Parts (S7999B)

• 9-pin connector—50020034-001

• Power Supply—Manufactured by MeanWell,
Model S-25-12 (order from manufacturer).

• #6-32 X1-in. screws(4) with nuts (4)

Supplied Parts (S7999C)

• Mounting Plate - see Fig. 9 for dimensions and hole
locations.

• #6-32 X 1-in. screws (4) with nuts (4)

• Standoffs 5/16-in. dia. X 3/8 in. long (4)

• Power Supply—Manufactured by V-infinity
Model FSC-S5-12U (order from manufacturer).

Fig. 1. OI Display dimensions (S7999C shown) in in. (mm).

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the

FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful interference to radio communica­tions. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be

3 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

WARNING

required to correct the interference at his own expense.

This Class A digital apparatus complies with Canadian ICES-003.
Cet Appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

SAFETY FEATURES

The OI Displays contain software that incorporates many
features that are designed to guide you safely through the
commissioning process. Safety, however, is your responsibility.

+12V

COMMON (c)

COM1 (b)

COM1 (a)

N/C

N/C

COM2 (a)

COM2 (b)

Read all documentation carefully and respond appropriately to
all error messages.

Explosion Hazard.
Improper configuration can cause fuel buildup and
explosion.

Improper user operation may result in PROPERTY
LOSS, PHYSICAL INJURY or DEATH.

Using the OI Displays to change parameters, must be
attempted by only experienced and/or licensed

burner/boiler operators and mechanics.

INSTALLATION INSTRUCTIONS (S7999B OI DISPLAY)

NOTE: For S7999C OI Display installation instructions, see

page 9.

Mounting the S7999B OI Display and Power Supply

The OI Display can be mounted on the door panel of an
electrical enclosure.

1. Select the location on the door panel to mount the dis­play; note that the device will extend into the enclosure
at least one inch past the mounting surface.

2. Provide an opening in the panel door 8-1/8 in. wide by 5­7/8 in. high.

3. Place the OI Display in the opening and use it as a tem­plate to mark the location of the four mounting screw
holes. Remove the device.

4. Using pilot holes as guides, drill 1/4 in. holes through the
door panel.

5. Place the display in the opening, aligning the mounting
holes in the device with the drilled holes in the panel.

6. Secure the display to the panel with four #6-32 screws
and nuts provided.

1 2 3 4 5 6 7 8 9

M28859A

Fig. 2. S7999B OI Display connector terminals.

7. Select a location inside the enclosure for mounting the

power supply.

8. Using the power supply as a template, mark the loca­tions of the two mounting holes in the enclosure.

9. Remove the power supply.

10. Drill 1/4 in. holes through the panel at the marked loca-

tions and secure the power supply with the two #6-32
screws and nuts provided.

11. Remove the 9-pin connector plug from the back of the OI
Display.

12. Wire the connector to the power supply and the RS-485
cables using the wiring diagram in Fig. 3.

13. Ensure the 9-pin connector plug is aligned with the
header pins when inserting the 9-pin connector plug
back onto the Display. Secure firmly.

WIRING (S7999B OI DISPLAY)

The S7999B OI Display must be appropriately wired for both
power and communications. An external 12V power supply
(provided) with an appropriate power rating is connected to
pins 1, 2 and 3 to power the device.

Communication is done over a RS-485 bus:

• COM1 connected directly to the SOLA Device J3 connector
to either Modbus (MB1 or MB2).

• COM2: A bus to the Building Automation System.

See Fig. 2 for S7999B Display connector terminals. Wiring
connections are listed in Table 1. See Fig. 3 for wiring.

Table 1. 9-pin Connector Terminals

Pin # Function

1 12V input

2 12V input

3 Common (Power, COM 1)

4 COM 1 (b) to MB1 or MB2 terminal

5 COM 1 (a) to MB1 or MB2 terminal

6 Not used

7 Not used

8COM 2 (a)

65-0303—05 4

Table 1. 9-pin Connector Terminals

Pin # Function

9 COM 2 (b)

MEAN WELL S-25-12

POWER SUPPLY

(COMMON GND)

WIRING KEY

LINE VOLTAGE
LOW VOLTAGE

DATA

120

VAC

NEUTRAL (L2)

120VAC (L1)

EARTH

GROUND

12 DC OUT +

DC OUT

V ADJ

1

DO NOT CONNECT THE S7999B TO TERMINALS 1 2 3. THIS WILL RENDER THE DISPLAY INOPERABLE.

DISPLAY CAN ALSO BE CONNECTED TO MB2; A, B, C.

2

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

S7999B

AS LOCAL DISPLAY

COM1

L1

L2

N

L

V+

V-

+12

214567893

+12

GND

(C)

(B) (A)

N/C

MB1 ECOMMB2

COM2

(A)

N/C

2

SOLA CONTROL

(B)

BAS

1

23CBACBA1

J3

M32004

Fig. 3. S7999B wiring diagram.

5 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

M32005

2

1

4

567 89

3

+12

(B)

(A)

N/C

GND

(C)

+12

N/C

(A)

(B)

S7999B

AS SYSTEM DISPLAY

COM1

COM2

L1

L2

120

VAC

VAD J

V+

N

L

V-

DC OUT

(COMMON GND)

12 DC OUT +

EARTH

GROUND

120VAC (L1)

NEUTRAL (L2)

MEAN WELL S-25-12

DO NOT CONNECT THE S7999B TO TERMINALS 1 2 3.
THIS WILL RENDER THE DISPLAY INOPERABLE.

DISPLAY CAN ALSO BE CONNECTED TO MB2; A, B, C
AND THE SOLA SLAVES NEED TO BE WIRED TO MB1.

CONTROLLER HAS TWO AVAILABLE MODBUS
CONNECTIONS: THIS CONFIGURATION REQUIRES ONE
FOR CONTROL LEAD LAG COMMUNICATION AND ONE
FOR A S7999B SYSTEM DISPLAY.

THERE IS NOT A CONNECTION AVAILABLE FOR A
LOCAL TOUCHSCREEN DISPLAY (S7999C).

THE ECOM CONNECTION IS AVAILABLE FOR
CONNECTIONS OF A LOCAL KEYBOARD
DISPLAY MODULE.

UP TO A MAXIMUM OF 8 SOLA SLAVES IN A
LEAD LAG NETWORK.

POWER SUPPLY

WIRING KEY

LOW VOLTAGE
DATA

LINE VOLTAGE

SOLA LL MASTER

AND SLAVE 1

23CBACBA1

J3

MB1 ECOMMB2

23CBACBA1

SOLA SLAVE 2

J3

MB1 ECOMMB2

23CBACBA1

SOLA SLAVE 3

J3

MB1 ECOMMB2

23CBACBA1

SOLA SLAVE 4

J3

MB1 ECOMMB2

1

1

2

3

3

4

4

2

BUILDING AUTOMATION SYSTEM (BAS) CONFIGURATION

Connect the BAS Modbus wiring to COM2 of the S7999B as
shown in Fig. 5.

Fig. 4. S7999B wiring diagram for lead lag.

Ensure all S7999B devices have unique Modbus addresses as
defined in Fig. 5.

65-0303—05 6

WARNING

BAS

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

COM 2

S7999B

COM 1

1

SOLA

1

EACH SOLA IN THE BAS WILL HAVE A DIFFERENT MODBUS ADDRESS.

COM 2

S7999B

COM 1

SOLA

2

SOLA

Fig. 5. S7999B in a Building Automation System.

BAS Modbus message timeout should be set to 1.0 seconds or
higher. This means it could take up to 1.0 seconds (max) for
the System Display to reply to a BAS message.

Retries: BAS must setup retries upon timeout to ensure the
Modbus request is accepted.

BAS Modbus poll rate should be set to 1.0 seconds. This
means that the BAS should wait for a minimum of 1.0 seconds
after receiving a Modbus message from Sola before sending a
new Modbus message.

COM 2

S7999B

COM 1

3

SOLA

UP TO 8
SOLAS

4

5

SOLA

1

M32006

If the screen is dim, check the pin 1 and 2 wiring connections.

NOTE: An Advanced Startup screen displays for five seconds

after power-up before the Home page displays. This
screen allows the user to upgrade the software in the
System Display (see “Preface” on page 2) and should
normally be bypassed.

Three LEDs exist for I/O traffic: one for the Ethernet network
port and two for Modbus™ ports. The ethernet port should only
be used if instructed by Honeywell that an update is necessary.
Modbus Com Port 2 is not active on this device.

QUICK SETUP (S7999B OI DISPLAY)

1. Make sure the S7999B 9-pin connector is properly

aligned and pressed firmly in place.

2. Make sure the wires between the 9-pin connector and
the controller are properly wired and secure.

Electrical Shock Hazard.
Can cause severe injury, death or equipment
damage.

Line voltage is present at the 120 Vac power supply.

3. Make sure the power supply is connected securely to the
120 Vac power source.

STARTING THE S7999B OI DISPLAY

Power-up Validation

The Home page will appear and the “Power” LED will be
blinking when the device is properly powered. Select the 1234
Setup button to adjust the contrast and sound as desired.

1. Make sure the Power and COM1 LEDs are blinking.

2. If the LEDs are not blinking:

a. Make sure the proper connections have been made

between the Modbus COM1 Port and the first control­ler device in the Modbus network.

b. See “Wiring (S7999B OI Display)” on page 4 for

proper wiring of the OI Display 9-pin Header
Connections.

3. If connected to a BAS application, COM2 LED will blink
indicating BAS traffic.

Home Page (S7999B OI Display)

Make sure a screen similar to Fig. 6 appears after the OI
Display has completely powered up.

On System applications, each SOLA Control is represented on
the Home page by an icon and name. Pressing the icon allows
the user to zoom in on that boiler and see its specific details.
These details are provided on a new page, which can include
additional buttons that display additional detail and operation
information, which itself leads to other pages. The pages are
traversed in a tree structure method, as shown in Fig. 8.

The Sola icons will appear in one of four colors indicating the
boiler status.

• Blue: Normal operation

• Red: Lockout condition

• Gray: Standby mode (burner switch off)

7 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

• Gray and crossed out: communication error (disconnected
or powered off)

Up to 8 Systems can be displayed on the Home page. The
name of each boiler is displayed next to the Sola icon button.
When Lead Lag is enabled, the system header temperature
and firing rate are displayed for each System. When the burner
is in standby or not firing the firing rate is not displayed.

NOTE: The boiler name may be cut off on the Home page

when all icons are present.

The Home page also includes a System Analysis button that
allows the user to view status information on a system-wide
(that is, multiple boiler) basis. The user can choose which
status information to compare from the SOLA Controls in the
system.

Pressing the 1 2 3 4 Setup button on the Home page displays
miscellaneous setup and diagnostic functions beginning on
page 47 (see also Table 61 on page 53). It also contains the
setup configuration for BAS applications, under the Advanced
Setup button.

Pressing the SOLA icon opens that control’s status page. Go to
“Configure Button” on page 13 to continue.

Fig. 6. S7999B Home page (Boiler 1 in normal operation).

65-0303—05 8

Fig. 7. S7999B Lead Lag Home page.

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

KEY

BUTTON FLOW

BACK ICON FLOW

HOME ICON ALWAYS TAKES
YOU TO THE HOME PAGE

CONFIGURE

Configuration

Groups

Login

Logout

Veri fy

OPERATION

CH

Login

DHW

HOME

PAG E

SUMMARY

PAG E

DIAGNOSTICS

Diagn.

Te st

Burner

Control

Digital

I/O

Analog

I/O

DETAILS

History

Alerts

Diagn.

Analysis

1 2 3 4
SETUP

HISTORY

Lockouts

Silence

OK

Alerts

PROGRAM

MODULE

CLEAN

SCREEN

SYSTEM
CONFIG.

ADVANCED

SETUP

MODULATION

SETPOINTS

PUMPS

?

M13965

Fig. 8. S7999B display page flow.

INSTALLATION INSTRUCTIONS (S7999C OI DISPLAY)

NOTE: For S7999B OI Display installation instructions, see

page 4.

The S7999C display is used for individual boiler monitoring.
The S7999C is mounted:

• onto a panel using the wallplate provided.

• from the front into a panel cutout (7.6 in. W X 5.4 in. H)
using 4 #6-32 screws and nuts (provided).

• From behind into a panel cutout (5.45 in. W X 4.3 in. H)
using 4 #6-32 screws, nuts and 4 standoffs (provided).

Mounting the S7999C OI Display using the wallplate (provided)

1. Select the location to mount the OI display; this could be

a location up to 1000 feet from the SOLA control.

2. Use the device wallplate as a template to mark the loca­tion of three or four mounting screw holes. See Fig. 9.

3. Drill 3/16 in. holes for mounting the wallplate.

4. Secure the wallplate with three or four #6-32 screws.

5. Bring power and communication wire through the wall

plate and attach to the terminals on the back of the dis­play before installing the display to the wall plate.

1/2

(13)

1-21/32

(42)

1-13/16 (46)

2-3/4 (70)

3-13/64

(81)

M27606

Fig. 9. S7999C wallplate dimensions in in. (mm).

Mounting the S7999C OI Display directly to the Door Panel

1. Select the location to mount the display.

2. Cut an opening to facilitate mounting the display into the

door panel. See Fig. 1 for the dimensions for mounting
the display from the front of the door. See Fig. 10 for
mounting the display to the back of the door. If desired,
cut a notch so the LEDs will be visible as well. Tear off
templates are also available on the back pages of this
Manual (see Fig. 121 on page 63 and Fig. 122 on page

65).

3. Fit the display into the opening and use the screw holes
in the device as a template to mark the location of the
four mounting screw holes.

9 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

WARNING

M29868

SPACER (4)

WALL

CUTOUT

OPTIONAL
CUTOUT

4. Drill 3/16 in. holes for mounting the display. 5. Secure the OI Display to the panel using the four #6-32
screws and nuts, as shown in Fig. 10. (Standoffs are pro­vided for mounting the OI Display from the back of the
door.)

Fig. 10. Mounting the S7999C OI Display behind the door panel.

S7999C OI Display Power supply mounting.

1. Select a location inside the enclosure for mounting the

power supply.

2. Using the power supply as a template, mark the loca-

tions of two mounting holes in the enclosure.

3. Remove the power supply.

4. Drill 1/4 in. holes through the panel at the marked loca-

tions and secure the power supply with the two #6-32
screws and nuts provided.

WIRING (S7999C OI DISPLAY)

The S7999C OI display must be appropriately wired for both
power and communications.

1. Wire the power supply and the RS-485 communication

cables per Table 2 and the wiring diagram in Fig. 11.

• Y and G are connected directly to the display and
either SOLA Control connector J3 Modbus (MB1) or
Modbus (MB2).

2. Make sure the 12 Vdc power supply (supplied with the
S7999C) is connected securely to the 120 Vac power
source.

Table 2. 4-pin Connector Terminals (located on the

back of the S7999C OI Display).

Pin # Function

Y Data (-) Output (Modbus b)

Table 2. 4-pin Connector Terminals (located on the

back of the S7999C OI Display).

Pin # Function

+ 12Vdc input

- 12Vdc Input

G Data (+) Output (Modbus a)

L2

L1

WIRING KEY

N

L

V-INFINITY

FSC-S5-12U

120

VAC

LINE VOLTAGE
LOW VOLTAGE
DATA

1

DO NOT CONNECT S7999C TO TERMINALS 1 2 3 AS THIS WILL RENDER
THE DISPLAY INOPERABLE.

V+

V–

A

S7999C MID-

LEVEL DISPLAY

+

−G

Y

AB

B

C

C

MB2

MB1

R7910 HYDRONIC CONTROL OR

R7911 STEAM CONTROL

1
ECOM J3

Fig. 11. S7999C wiring diagram.

Electrical Shock Hazard.
Can cause severe injury, death or equipment
damage.

Line voltage is present at the power supply.

S7999C CAN BE
CONNECTED TO
EITHER MB1 OR
MB2 A, B, C
TERMINALS

1

3

2

M32008

65-0303—05 10

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

L2

120

VAC

L1

WIRING KEY

LINE VOLTAGE
LOW VOLTAGE
DATA

1

DO NOT CONNECT THE S7999C TO
TERMINALS 1 2 3. THIS WILL RENDER
THE DISPLAY INOPERABLE.

2

DISPLAY CAN BE CONNECTED TO MB1
OR MB2; A, B, C AS LONG AS THE
REMAINING MB TERMINAL IS USED
FOR THE SLAVE COMMUNICATIONS.

3

WIRE V-INFINITY POWER SUPPLY
TO + AND - TERMINALS.

S7999C CONNECTED TO THE MASTER

4

CAN CONFIGURE THE MASTER.

IT CAN ALSO CONFIGURE THE SLAVE
INFORMATION IN THIS CONTROL AS WELL
AS MONITOR THIS SLAVE’S ACTIVITIES.

S7999C CONNECTED TO EACH SLAVE
CAN ONLY CONFIGURE THAT SLAVE AS
WELL AS MONITOR THAT SLAVE’S ACTIVITY.

5

UP TO A MAXIMUM OF 8 SOLA SLAVES
IN A LEAD LAG NETWORK.

N

L

V-INFINITY

FSC-S5-12U

S7999C

MID-LEVEL DISPLAY

+YG–

V+

V-

C

BA

MB1 ECOMMB2

2

LL MASTER AND SLAVE 1

BA1

C

MB1 ECOMMB2

2

BA1

MB1 ECOMMB2

2

SOLA SLAVE 2

C

SOLA SLAVE 3

CBA

SOLA

3

4

23

1

J3

1 3

23CBA

J3

1

23CBA

J3

1

4

4

4

S7999C

MID-LEVEL DISPLAY

+YG–

S7999C

MID-LEVEL DISPLAY

+Y

S7999C

MID-LEVEL DISPLAY

+YG–

–

3

G

3

BA1

C

MB1 ECOMMB2

5

2

SOLA SLAVE 4

Fig. 12. S7999C wiring diagram for lead lag.

11 65-0303—05

23CBA

J3

1

M32007

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

STARTING THE S7999C OI DISPLAY

Power-up Validation

The Home page will appear and the “Power” LED will be on
continuously and the “COM” LED will be blinking when the
device is properly powered and communicating to the Sola
Control.

HOME
PAG E

CONFIGURE

CONFIGURATION

GROUPS

LOGIN

LOGOUT

VERIFY

DISPLAY

SETUP

OPERATION

CH

LOGIN

DHW

ANNUNCIATION

PROGRAM

MODULE

CLEAN

SCREEN

SYSTEM

CONFIGURATION

ADVANCED

SETUP

DIAGNOSTICS

DIAGNOSTIC

TEST

BURNER

CONTROL

DIGITAL I/O

ANALOG I/O

The “COM” LED exists for I/O traffic.

1. Make sure the LED is blinking.

2. If the LED is not blinking:

a. Make sure the proper connections have been made

between the display and the Sola Control.

b. See “Wiring (S7999C OI Display)” on page 10 for

proper wiring of the display connections.

DETAILS

HISTORY

ALERTS

DIAGNOSTIC

ANALYSIS

BUTTON FLOW

BACK ICON FLOW
HOME ICON ALWAYS
TAKES YOU TO THE
HOME PAGE

KEY

HISTORY

OK

LOCKOUTS

ALERTS

SILENCE

MODULATION

SETPOINTS

PUMPS

?

M29774

Fig. 13. S7999C display page flow.

PAGE NAVIGATION

The Sola OI Displays present information and options in a
paged manner. Pages are displayed in a tree structure in which
the user navigates up and down to arrive at the desired
Function (see Fig. 8 for S7999B or Fig. 13 for S7999C). The
page descriptions are provided below so that you can
understand the purpose of each and view the selections,
parameters, and information that is available or required on
each.

Common OI Display Page Symbols

Most pages have a Home button in the top-left corner of

the screen and a Back button in the top-right corner of
the screen. The Home button returns the user to the Home

page and terminates any operation in progress. The Back
button returns the user to the previous page.

Two other icons may be noticed near the boiler name.

A bell will be displayed if the system is in Lockout that
reset will be required.

A padlock will be shown on screens that require a password
to change the parameter. An unlocked padlock indicates the
password has been entered to change the parameter.

Status or Home Page

A status (summary) page (Fig. 14) is displayed when the
S7999C display is connected. This status page appears on the
S7999B when the Sola control icon is pressed on the “Home”
page. The status page displays the current condition of the
burner control and displays some of the more important
configuration settings.

The boiler name associated with the burner control is
displayed in the title on the status page.

NOTE: When the burner control has no boiler name defined,

Modbus address is used to identify the boiler.

The initial status page displayed contains summary status
information as shown in Fig. 14. Any status information not
applicable for the installation is grayed/blanked out on the
screen.

Buttons on this screen include:

• Configure: used to configure the burner control (see
“Configure Button” on page 13 for more details).

• Operation: used to perform daily or frequent functions with
the burner control, such as setpoint adjustment, etc. See
“Operation Button” on page 18 for details.

• Diagnostic: used to view burner control diagnostic
information (see “Diagnostics Button” on page 19 for more
details).

• Details: used to view burner control detail status
information (see “Details” on page 38).

65-0303—05 12

• History: used to view burner control history (see “History
Button” on page 16 for more details).

• ?: used to expand the pump status information.

• Modulation: used to toggle between status displays: pump,
setpoints, and modulation.

Fig. 14. Summary status page (Hydronic Control shown).

Configure Button

Pressing the Configure button (bottom left) on the Status page
opens the Configuration page. The Configuration page shown
in Fig. 15 is for the S7999C OI display.

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 15. Configuration menu page. Shown is the S7999C on

a Hydronic Control.

No specific order for configuration is required. All parameters
are enabled for editing, though some may not be applicable
(e.g., a configuration parameter may disable a control feature).
Selecting a parameter group from the menu displays
parameters exclusively applicable for the functional group on
the page (see Fig. 16). These parameters can be edited, and
when the user is finished, control returns back to the
configuration menu page.

The S7999B Configuration page does not have a “Display
Setup” button.

Display Setup (S7999C only): Pressing the Display Setup
button displays miscellaneous S7999C OI Display setup and
diagnostic functions (See page 47 for options). (The same
function as the 1234 Setup on the S7999B home page.)

The configuration page allows the user to view and set
parameters that define how the connected R7910A functions in
the hydronic heating system or the R7911 steam heating
system.

The configuration page contains a menu of parameters
grouped into functional areas that the user selects for
configuration (see Fig. 16). See Table 61 on page 53 for all
parameters available for configuration. If some parameters are
not visible, they have been made invisible by Honeywell.

Fig. 16. Sample configuration page for the S7999B

Hydronic Control.

Each parameter is displayed in its group. If there are more
parameters than will fit on the screen, a vertical scroll bar
allows the user to scroll up and down to view all parameters.
The parameter name is displayed on the left and the current
setting is displayed in the text box on the right.

Configuration Password

Some parameters require a valid configuration password be
entered by the user before the parameter can be changed. The
password need only be entered once while the user remains
on the configuration pages. Leaving the configuration pages
ends the scope of the password.

13 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

WARNING

Three levels of access to Sola Control parameters are
permitted. Each access level has defined rights when
interfacing with configuration and status parameters within the
controls.

• End user: The end user can read or view the control
parameters and be allowed to change some operating
parameters, CH setpoint as an example.

• Installer: The installer can read all control parameters and
change Honeywell's allowed parameters. This access level
is used to customize the control for a particular installation.

• OEM: The OEM can read and change all parameters,
change sensor limits and burner control safety parameters.

Different passwords exist in the Sola Control for each access
level. The end user level requires no password, but the
installer and OEM levels have unique passwords defined for
them.

The installer and OEM passwords can be changed in the Sola
Control after logging in with the current password. When the
password is changed, it is saved for all future logins.

NOTE: For the S7999B System OI display, each boiler in a

multi-boiler configuration has its own set of installer
and OEM passwords. To avoid user confusion, the
passwords should be changed to the same password
in each control, but there is no requirement to do so.

Make sure to record your password.

The user is notified that a new password is needed to change a
parameter (or until a password is entered successfully)—see
Fig. 17. The user can continue viewing the configuration
parameters regardless of whether a password is entered
successfully.

The user is not required to enter a configuration password for a
parameter that has a lower access level than the access level
achieved by an earlier password entry for any configuration
group (as long as the user stays in the configuration pages).
The user only needs to enter a password once until a
parameter that has a higher access level is selected.

Keyboard

Some pages request user entry of characters. When this type
of input is required, a keyboard page appears, as shown in Fig.

18. The text box at the top of the screen displays the current
(or default) setting of the user input. The user can add to this
text, clear it, or change it.

The Shift key on the left side of the screen shifts between
upper and lowercase characters. Pressing the Shift key
toggles the keyboard from one mode to the other (continuous
pressing of the Shift button is not required). The OK button
should be pressed when the user is done entering the text
input. The Cancel button on the bottom of the screen allows
the user to ignore any text changes that have been made and
keep the original text value. Pressing the OK or Cancel buttons
returns the user to the page displayed prior to the keyboard
page.

Login

Pressing the Login button allows entering the password from a
keyboard as shown in Fig. 18. After the password is entered,
the OK button is selected. The Cancel button aborts the
password login.

Fig. 17. Login required. (S7999B Hydronic Control Shown.)

The Sola Controls maintain a password time-out that limits the
scope of the password entry. Once a password is successfully
entered, the control starts an internal timer that expires after 10
minutes of inactivity. After the timer expires, the user is
required to re-enter a password before a parameter can be
changed.

65-0303—05 14

Fig. 18. Device login screen.

Explosion Hazard.
Improper configuration can cause fuel buildup and
explosion.

Improper user operation may result in PROPERTY
LOSS, PHYSICAL INJURY or DEATH.

Using the OI Displays to change parameters must be
attempted by only experienced and/or licensed
burner/boiler operators and mechanics.

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Change Parameter Settings

Change parameter settings by selecting the parameter on the
page. A dialog box displays for the parameter with controls
allowing the user to change the value (see Fig. 19). After
changing the setting to a new value, press the OK button.
Pressing the Cancel button leaves the parameter unchanged.

The changed setting is reflected on the screen and sent to the
control when the OK button is pressed.

Like operating parameters, safety parameters can be viewed
without the need to enter a password.

Safety parameter blocks that have been changed require
verification. The verification steps do not have to be completed
immediately; the installer can move between and change
parameter groups before the verification is done. A Verify
button is enabled that allows the installer to conduct verification
sessions (the example of the Verify button in Fig. 15 is not yet
enabled because the installer hasn’t logged in).

NOTE: When the installer proceeds with the safety parameter

configuration, the control unlocks the safety parame­ters in this group and marks them unusable. Failure to
complete the entire safety configuration procedure
leaves the control in an un-runnable state (lockout 2).

All safety configuration parameters in the group should have
the same access level. If this condition isn’t so, the user is
asked to enter another password when a higher access level is
needed.

Successful login is noted by the lock icon, which changes to
“unlocked” on the page. The installer may begin to change
safety parameters (or any other parameters) at that time. (See
Fig. 21.) If the Sola Control is in an unconfigured (or new)
state, then this warning doesn’t appear. All parameters that
need changes should be changed during the login.

Fig. 19. Change configuration parameter page example of

a Hydronic Control.

Verify

Pressing the Verify button displays safety configuration
parameters for an additional verification step to commit the
changes.

Safety parameters are grouped into blocks that include only
safety parameters, not a mixture of safety data and non-safety
data. All parameters within the safety group undergo a
verification process. A safety parameter group is identified on
the display to indicate when the configuration parameters are
safety-related. Each safety parameter group is verified one at a
time until all have been verified. See Fig. 20.

Fig. 21. Edit safety data.

If the safety configuration session is terminated after it has
started (in the Edit or Verify stages), the Sola Control is left in
an unconfigured (unrunnable) state.

The installer can terminate the session by pressing the Menu
button or by attempting to leave the Verification page with the
Home or Back buttons (top-left and -right screen corners,
respectively). However, leaving the session at this point leaves
the control in an unrunnable state and confirms whether the
installer still wants to do so.

Fig. 20. Safety verification.

The settings of all parameters in each safety block must be
verified to save them in the control.

When the installer is done changing safety parameters,
pressing the Verify button on the configuration screen begins
the Verification process. The settings for all safety parameters
in each changed block are presented and Verified by the
installer (see Fig. 22).

15 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 22. Safety parameter confirmation.

Press the Yes button to confirm each safety parameter block. If
the No button is selected, the safety parameter block remains
unconfirmed and the Configuration menu page is displayed.
The control remains in an unconfigured state in this case.

After all safety parameter blocks have been confirmed, the
installer is asked to press and hold the Reset button on the
Sola Control to complete the safety verification session (see
Fig. 23).

Safety lockouts are indicated on each configuration page as an
alarm bell symbol. At the home (for S7999C) or status page
(for S7999B), the History button turns red. If the S7999B is
displaying the system status icons, the control in alarm will turn
red.

The lockout history can be displayed by pressing on the
History button. The state information about each lockout is
displayed along with the date/time that the lockout occurred
(see Table 3). Current date/time stamp is a display setup
feature.

NOTE: In the event of a power interruption, the date/time

must be reset. The OI Display does NOT have a
backup means.

Table 3. Sola Control Lockout History.

Data Comment

Lockout time Set by display

Fault code Unique code defining which

lockout occurred.

Annunciator first out First interlock in limit string

results in a shutdown.

Description Fault description

Burner Lockout/Hold Source/reason for lockout/

hold

Burner control state

Sequence time Burner control state timer at

time of fault

Cycle Burner control cycle

Run Hours Burner control hours

I/O All digital I/O status at time of

fault

Annunciator 1-8 states All annunciator I/O status at

time of fault

Fault data Fault dependent data

Fig. 23. Safety parameter reset.

When the Reset button is pressed and held for 3 seconds the
confirmed safety parameters are saved in the control. The
above Reset dialog box automatically closes when this step is
completed.

If this step is not performed, the control remains in a safety
lockout state until the installer resolves the unverified safety
parameters.

Fault/Alarm Handling

Each Sola Control reports to the OI display when a safety
lockout or an Alert occurs.

65-0303—05 16

An alert log can be displayed for each control by pressing the
Alert button on the bottom of the history status page. A
description of the alert is displayed along with the time when
the alert occurred (see Table 4).

Table 4. Sola Control Alert Log.

Data Comment

Alert time Set by display

Alert code Unique code defining which

fault occurred.

Description Alert description

History Button

The History button on the Home page serves not only as a
button, but also displays Sola Control lockouts, holds, and
alerts as they occur. The History button can be selected at any
time, regardless of which type of information is displayed, to
view history information. Pressing the History button displays a
dialog box (see Fig. 24) that allows the user to select the type

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

of history to view. The user can also silence an audible alarm
generated by the control during a lockout or alert by alarm
condition.

This History dialog box provides an exploded view of the status
information displayed in the History button (the font is larger).
One of the four buttons (OK, Lockouts, Alerts, or Silence) can
be selected. If none of these buttons are selected the dialog
box closes after 30 seconds.

The date and time that each fault occurred is displayed in the
lockout history. The lockout timestamp displays in both the
lockout summary and detail information.

The Sola Control does not maintain date or time of day
information. The date and time stamp is assigned by the OI
display. When the OI display first obtains the lockout and alert
history from the control (during the display data
synchronization), no timestamps are assigned since the times
that the lockouts occurred are unknown. All new lockouts that
occur after the synchronization are assigned timestamps.

NOTE: The system time can be set in the OI display to

ensure that correct timestamps are given to the con­trols’ lockouts and alerts. Power interruptions will
require the time to be reset as the display DOES NOT
have a time backup means.

The Clear Lockout button allows the user to acknowledge and
clear (reset) the lockout when in lockout state, much the same
as pressing the reset button on the front of the Sola Control.

The user can toggle between displaying the controls’ lockout
history and alert log by pressing the Alerts or Lockouts button
on the bottom of the pages.

Fig. 24. Hydronic history example shown—exploded view.

Two types of historical data can be displayed on the history
page: lockout history and alert log.

The entire 15 fault code history is displayed in a scrollable list
with the most recent fault displayed first followed by the next
most recent fault. Summary information is displayed for each
fault entry, including the burner cycle count, fault code, and
fault number with description. Detailed information for a
specific fault entry that also includes burner control sequence
state, burner run-time hours, annunciation status, etc., is
viewed by selecting (touching the History line) the lockout entry
in the list (see “Fault/Alarm Handling” on page 16 for details).

Fig. 26. Alert log example shown.

To see additional detail about a lockout or alert, touching on the
lockout or alert in the list expands the view of that lockout or
alert, as shown in Fig. 27 and 28.

Fig. 25. Lockout history example shown.

17 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 27. Control expanded lockout detail.

Fig. 28. Control expanded alert detail.

Operation Button

The operation button displays the SOLA Control running
operation, including setpoint and firing rate values. From this
page the user can change setpoints, manually control the
boiler’s firing rate, manually turn pumps on, view annunciation
information, and switch between hydronic heating loops
(Central Heat and Domestic Hot Water), as shown in Fig. 22. If
a password is required to change any of the settings on this
page, the user can press the Login button to enter the
password.

Fig. 29. Hydronic operation page shown.

Fig. 30. Programmable annunciation.

Annunciation information is shown in Fig. 23 and Fig 24.

65-0303—05 18

Fig. 31. Fixed annunciation.

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Diagnostics Button

The Diagnostics button displays analog and digital I/O status of
the SOLA Control. A snapshot of the diagnostic status is
displayed and updated once per second as it changes in the
control. See “R7910A or R7911 Diagnostics” on page 44 for
more information about this status.

The digital I/O data is displayed as LEDs that are either on
(green) or off (red) (See Fig. 23). Not all digital I/O can be
displayed at the same time on the page, so a horizontal scroll
bar is used to move the view left and right to show all digital
I/O data.

System Configuration (S7999B OI DisplayOnly)

The OI Display has some functions related to general
configuration for the control in the end user installation.

Pressing the Display Refresh button invokes a search
procedure (see Fig. 34). A new R7910A Hydronic Control or
R7911 Steam Control is identified by “Unknown” status next to
its name in the boiler system list (see Fig. 35). “Unknown”
indicates that configuration data has not been retrieved from
the control yet.

Fig. 32. Diagnostic page (digital I/O).

The control analog I/O can also be viewed on the OI Display. A
snapshot of the diagnostic status is displayed and updated as
it changes in the control.

The analog I/O data is displayed as bar charts with I/O level
represented in the I/O range (see Figure 24.) Analog I/O that is
not enabled for the installation displays a blank I/O level. Not
all analog I/O can be displayed at the same time on the page,
so a horizontal scroll bar is used to move the view left and right
to show all analog I/O status.

Fig. 34. System refresh.

Fig. 35. System configuration page.

The control connected to the Modbus network is indicated to
the user after the search procedure has concluded.

Once the control is located it must be synchronized with the OI
Display before it can be displayed. New controls are not
displayed on the Home page until this synchronization (see
below) is performed.

Fig. 33. Diagnostics page (analog I/O).

System Synchronization (S7999B OI Display Only)

The user can manually synchronize configuration data from the
connected controls at any time.

19 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

WARNING

A new control is visible when configuration and status data is
gathered from it. This collection procedure takes a few
minutes. The control is marked as “Unknown” when no
configuration information exists. Normally, control configuration
data collection only needs to be performed when the control is
initially installed. However, a re synchronization is necessary
after the OI Display is reset. See Fig. 36.

The user presses the Synchronize button to begin
synchronization with the control. See Fig. 36.

Fig. 36. System synchronization.

Status of the synchronization is reflected in the dialog box. The
synchronization can be aborted by selecting the Cancel button.

Table 5. Functional Configuration Groups.

Hydronic Control Steam Control

T-Rise Limit

Heat Exchanger High Limit

Anti-condensation Burner Control Flame Failure

Frost Protection
Configuration

Annunciation Configuration Fan Configuration

Burner Control Interlocks Lead Lag Configuration

Burner Control Timings and
Rates

Burner Control Ignition

Burner Control Flame Failure

System Configuration

Fan Configuration

Sensor Configuration

Lead Lag Slave
Configuration

Lead Lag Master
Configuration

Most of this configuration is performed by either the contractor/
installer or at Honeywell. Each functional group is displayed on
the Configuration menu page.

Parameters in functional groups that are not applicable for the
installation can be ignored. In some cases, features in a
functional group are disabled by default and are enabled when
needed for the installation.

System Configuration

Configuration

The SOLA Control can be configured from the OI Display. The
control configuration is grouped into the functional groups seen
in Table 5.

Table 5. Functional Configuration Groups.

Hydronic Control Steam Control

System Identification and
Access

CH - Central Heat Steam Configuration

Outdoor Reset Modulation Configuration

DHW - Domestic Hot Water Pump Configuration

DHW Storage

DHW Plate

Warm Weather Shutdown

Demand Priority

Modulation Configuration Statistics Configuration

Pump Configuration Stack Limit

Statistics Configuration Annunciation Configuration

High Limit Burner Control Interlocks

Stack Limit Burner control Timings and

Delta T Limits

Steam Identification and
Access

Rates

R7910A HYDRONIC CONTROL, R7911 STEAM CONTROL CONFIGURATION PARAMETERS

The following pages list the configuration parameters available
for the R7910A or R7911 installed.

NOTE: Individual Configuration pages may differ from this

text as features are added or amended by Honeywell.

A password is required to make changes to the Configuration
Parameters. The SOLA Control will be in a Lockout 2 “waiting
for safety data verification” as received or will go to a Lockout 2
when changes are made to the safety data.

Explosion Hazard.
Improper configuration can cause fuel buildup and
explosion.

Improper user operation may result in PROPERTY
LOSS, PHYSICAL INJURY or DEATH.

The OI Display used to change parameters, must be
attempted by only experienced and/or licensed
burner/boiler operators and mechanics.

65-0303—05 20

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Central Heat Parameters (R7910A Hydronic Control Only)

Table 8 displays Central Heat Hydronic Control configuration
parameters.

Fig. 37. System identification and access configuration.

(Hydronic Screen Shown.)

Table 6 displays System Identification and Access parameters.

Table 6. System Identification and Access Parameters.

Parameter Comment

Boiler Name Name to identify boiler (up to 20

characters)

Installation Notes regarding installation (up to 20

characters)

Installer password Change installer password setting

OEM password Change OEM password setting

Factory Data OEM name to associate with boiler

(up to 20 characters)

When the burner name is changed, the name is saved in the
R7910A or R7911 and displayed in the title of all pages that
zoom into the control.

Default parameter settings for installer and Honeywell
passwords are “sola” and “solaoem,” respectively. These
passwords most likely have been changed by Honeywell.

Factory Data gives Honeywell an option to display a brand
name other than Sola on this configuration page. Additional
information displayed on this page is listed in Table 7.

Table 7. System Identification Information.

Status Comment

Product Type Type of product that the burner is

OS Number Model number associated with burner

Software Version Version of software running in the

R7910A or R7911

Date Code Date when R7910A or R7911 was

assembled

Application Revision Version of application data in the

R7910A or R7911

Safety Revision Revision of safety data in the R7910A

or R7911

Fig. 38. Central Heat hydronic configuration.

Table 8. Central Heat Hydronic

Configuration Parameters.

Parameter Comment

CH enable Disable or Enable Central Heating

Loop

Demand switch Sensor for Central Heat demand:

Sensor only
Sensor & STAT terminal
Sensor & Remote Stat
LCI & Sensor

Outdoor reset Enabled

Disabled

CH has priority over
Lead Lag

Setpoint source Local

Setpoint Setpoint for normal Central Heat

Time of day setpoint Setpoint when Time Of Day switch is

Off hysteresis Differential above setpoint when boiler

On hysteresis Differential from setpoint when boiler

4 mA water
temperature

20 mA water
temperature

Modulation sensor Outlet sensor, Inlet sensor, S5 (J8-11)

Yes, No, Cancel

S2 (J8-6) 4-20mA

modulation:

-40 °F to 266 °F (-40 °C to 130 °C)

on. -40 °F to 266 °F (-40 °C to 130 °C)

is turned off.
32 °F to 266 °F (0 °C to 130 °C)

is turned on. 32 °F to 266 °F (0 °C to
130 °C)

-40 °F to 266 °F (-40 °C to 130 °C)

-40 °F to 266 °F (-40 °C to 130 °C)

21 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 8. Central Heat Hydronic

Configuration Parameters. (Continued)

Parameter Comment

Modulation Rate
Sensor

P-gain Gain applied for the P portion of the

I-gain Gain applied for the I portion of the

D-gain Gain applied for the D portion of the

Hysteresis step time Time between hysteresis step

Local

PID equation
0-400

PID equation
0-400

PID equation
0-400

changes: 0-600 seconds (0=Disable
hysteresis stepping)

Table 9. Steam Configuration Parameters

Parameter Comment

Steam pressure on
hysteresis

Steam hysteresis
step time

Steam P Gain Gain applied for the P portion of the

Steam I Gain Gain applied for the I portion of the PID

Steam D Gain Gain applied for the D portion of the

Steam 4-20 ma
remote control

Differential from setpoint when boiler
is turned on.
Adjustable 0 to 15 or 0 to 150 (sensor
dependant)

Time between hysteresis changes 0 to
600 seconds (0=disable)

PID equation
0-400

Equation - 0-400

PID equation
0-400

uses 4-20ma remote control function to
control either the setpoint or
modulation for Steam
Disable, setpoint, modulation

Outdoor Reset Parameters (R7910A Hydronic Control Only)

Table 10 displays Outdoor Reset configuration parameters.
Pressing the left or right arrow displays Lead Lag, which lists
the same parameters.

Fig. 39. R7911 Steam Configuration.

Table 9. Steam Configuration Parameters

Parameter Comment

Steam enable Disable/enable steam feature

Steam demand
source

Steam pressure
setpoint

Steam time of day
setpoint

Minimum steam
pressure

Steam pressure off
hysteresis

65-0303—05 22

Sensor and LCI
Sensor and Remote Stat
Sensor and Stat Terminal
Sensor Only

Setpoint for normal modulation
Adjustable 0 to 15 or 0 to 150 (sensor
dependant)

Setpoint when TOD switch on
Adjustable 0 to 15 or 0 to 150 (sensor
dependant)

Establishes setpoint for the 4ma. input.
Adjustable 0 to 15 or 0 to 150 (sensor
dependant)

Differential below setpoint when boiler
is turned off
Adjustable 0 to 15 or 0 to 150 (sensor
dependant)

Fig. 40. Outdoor reset configuration.

Table 10. Outdoor Reset Configuration Parameters.

Parameter Comment

Maximum outdoor
temperature

Minimum outdoor
temperature

Low water
temperature

Minimum water
temperature

Maximum off point -40 °F to 266 °F (-40 °C to 130 °C)

-40 °F to 266 °F (-40 °C to 130 °C)

-40 °F to 266 °F (-40 °C to 130 °C)

-40 °F to 266 °F (-40 °C to 130 °C)

-40 °F to 266 °F (-40 °C to 130 °C)

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Domestic Hot Water (DHW) Configuration Parameters (R7910A Hydronic Control Only)

Table 11 displays Domestic Hot Water (DHW) configuration
parameters.

Fig. 41. Domestic Hot Water (DHW) configuration.

Table 11. Domestic Hot Water (DHW)

Configuration Parameters. (Continued)

Parameter Comment

Hysteresis step
time

DHW priority vs CH Which system has priority:

DHW priority vs
Lead Lag

DHW P-gain Gain applied for the P portion of the

DHW I-gain Gain applied for the I portion of the

DHW D-gain Gain applied for the D portion of the

___hour ___min ___sec

Central Heat over Domestic Hot
Water, or
Domestic Hot Water over Central Heat

Which system has priority:
Lead Lag over Domestic Hot Water,
Domestic Hot Water over Lead Lag

PID equation
0-400

PID equation
0-400

PID equation
0-400

DHW Storage Configuration

Table 12 displays DHW Storage configuration parameters.

Table 11. Domestic Hot Water (DHW)

Configuration Parameters.

Parameter Comment

Enable Disable or Enable Domestic Hot

Water Loop

Demand switch Sensor for Central Heat demand:

DHW sensor only,
DHW sensor & Remote Stat,
DHW switch & inlet sensor, or
DHW switch & outlet sensor

Priority source Which system has priority:

Disabled or
Heat Demand

Priority method Boost during priority time

Modulation sensor DHW Sensor

Setpoint -40 °F to 240 °F (-40 °C to 115 °C)

Time of day setpoint Setpoint when Time Of Day switch is

Off hysteresis Differential above setpoint when boiler

On hysteresis Differential from setpoint when boiler

DHW priority
override time

Drop after priority time

Outlet Sensor
Inlet Sensor
Auto: DHW (S6) or Inlet Sensor
Auto: DHW (S6) or Outlet Sensor

on. -40 °F to 240 °F (-40 °C to 115 °C)

is turned off. -40 °F to 240 °F (-40 °C
to 115 °C)

is turned on.
2 °F to 234 °F (-16 °C to 112 °C)

___hour ___min ___sec

Table 12. DHW Storage Configuration Parameters.

Parameter Comment

DHW storage
enable

Storage time ___hour ___min ___sec

Setpoint -40 °F to 266 °F (-40 °C to 130 °C)

Off hysteresis -0 °F to 180 °F (-17 °C to 82 °C)

On hysteresis -0 °F to 180 °F (-17 °C to 82 °C)

Enabled, Disabled

DHW Plate Heat Exchanger Configuration

Table 13 displays DHW Plate Heat Exchanger configuration
parameters.

Table 13. DHW Plate Heat Exchanger

Configuration Parameters.

Parameter Comment

Tap detect degrees -0 °F to 180 °F (-17 °C to 82 °C)

Tap detect on
recognition time

Tap detect on
threshold

Tap detect minimum
on time

Tap stop inlet-DHW
degrees

Tap stop outlet-Inlet
degrees

___hour ___min ___sec

-0 °F to 180 °F (-17 °C to 82 °C)

___hour ___min ___sec

-0 °F to 180 °F (-17 °C to 82 °C)

-0 °F to 180 °F (-17 °C to 82 °C)

23 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 13. DHW Plate Heat Exchanger

Configuration Parameters. (Continued)

Parameter Comment

Plate preheat
setpoint

Plate preheat on
recognition time

Plate preheat on
hysteresis

Plate preheat off
hysteresis

Plate preheat detect
on threshold

Plate preheat detect
off threshold

Plate preheat
minimum on time

Plate preheat delay
after tap

-40 °F to 266 °F (-40 °C to 130 °C)

___hour ___min ___sec

-0 °F to 180 °F (-17 °C to 82 °C)

-0 °F to 180 °F (-17 °C to 82 °C)

-0 °F to 180 °F (-17 °C to 82 °C)

-0 °F to 180 °F (-17 °C to 82 °C)

___hour ___min ___sec

___hour ___min ___sec

Warm Weather Shutdown Configuration

Table 14 displays Warm Weather Setpoint configuration
parameters.

Table 14. Warm Weather Setpoint

Configuration Parameters.

Parameter Comment

Enable Enabled, disabled

Setpoint -40 °F to 266 °F (-40 °C to 130 °C)

Demand Priority Configuration Parameters

Fig. 42 displays R7910A Hydronic Control Demand Priority
configuration options. Press the arrows to change the priority
order.

Fig. 42. Demand priority configuration.

65-0303—05 24

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Modulation Configuration Parameters

Table 15 displays R7910A Hydronic Control Modulation
configuration parameters.

Fig. 43. Modulation configuration.

Table 15. R7910A Hydronic Control Modulation Configura-

tion Parameters.

Steam Modulation Configuration Parameters

Table 16 displays R7911 Steam Modulation Configuration
parameters.

Fig. 44. Steam modulation configuration.

Table 16. R7911 Steam Modulation Configuration

Parameters.

Parameter Comment

CH maximum
modulation rate

DHW maximum
modulation rate

Minimum modulation
rate

CH forced rate time 0-600 seconds

CH forced rate RPM or %

DHW forced rate time 0-600 seconds

DHW forced rate RPM or %

CH slow start enable Enabled

DHW slow start
enable

Slow start degrees -40 °F to 266 °F (-40 °C to 130 °C)

Slow start ramp RPM /minute or %/minute

0-10/4-20 mA Output
hysteresis

RPM or %

RPM or %

RPM or %

Disabled

Enabled
Disabled

Parameter Comment

CH maximum
modulation rate

Minimum modulation
rate

CH forced rate time 0-600 seconds

CH forced rate RPM or %

0-10/4-20 mA Output
hysteresis

RPM or %

RPM or %

25 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Pump Configuration Parameters

Table 17 displays Pump configuration parameters. Use the left
and right arrows to switch between Central Heat, Boiler, DHW,
System, Auxiliary 1, and Auxiliary 2 pumps. The parameters
are the same for all pumps.

Pressing the Advanced Settings button brings up a number of
other advanced configuration options for each pump. Press the
Control Settings button to return to the screen shown in Fig.

45.

Fig. 45. Pump configuration.

Table 17. Pump Configuration Parameters for

R7910A Hydronic System.

Parameter Comment

Pump control Auto

On

Pump output Pump A

Pump B
Pump C

None
Pump start delay ___hour ___min ___sec
Overrun time ___hour ___min ___sec

*Table 61 on page 53 has more parameters listed.

NOTE: The R7911 Steam Control does not have pumps, but

the outputs are available to operate air dampers or
accessories. CH Pump, Boiler Pump and System
Pump are used for these output options.

Table 17a. Pump Configuration Parameters for R7911

Steam Modulation Configuration Parameters.

Parameter Comment

Auxiliary pump control Auto

On

Auxiliary pump is on when CH pump is ON

Slave command

Auxiliary pump output Pump A

Pump B
Pump C
None

Boiler pump control Auto

On

Boiler pump output Pump A

Pump B
Pump C
None

Boiler pump overrun time 0-600 seconds

0 = Not configured

CH pump control Auto

On

CH pump output Pump A

Pump B
Pump C
None

CH pump overrun time 0-600 seconds

0 = Not configured

System pump control Auto

On

System pump output Pump A

Pump B
Pump C
None

System pump ourrun time 0-600 seconds

0 = Not configured

Pump exercise time 0-600 seconds

0= Not configured

65-0303—05 26

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Statistics Configuration Parameters

Table 15 displays Statistics configuration parameters.

Fig. 46. Statistics configuration.

Table 18. Statistics Configuration Parameters.

Parameter Comment

Auxiliary pump cycles 0-999,999

Boiler pump cycles 0-999,999

Burner cycles 0-999,999

Burner run time 0-999,999

CH pump cycles 0-999,999

DHW pump cycles 0-999,999

System pump cycles 0-999,999

Auxiliary 2 pump
cycles

0-999,999

High Limit Configuration Parameters (R7910A Hydronic Control Only)

Table 19 displays outlet high limit configuration parameters.

Fig. 47. High Limits configuration.

Table 19. High Limit Configuration Parameters.

Parameter Comment

DHW high limit Enabled

Disabled

DHW high limit
response

DWH high limit
setpoint

Outlet high limit Enabled

Outlet high limit
response

Outlet high limit
setpoint

Recycle & hold
Lockout

-40 °F to 266 °F (-40 °C to 130 °C)

Disabled

Recycle & hold
Lockout

-40 °F to 266 °F (-40 °C to 130 °C)

27 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Stack Limit Configuration Parameters

Table 20 displays stack limit configuration parameters.

Fig. 48. Stack Limit configuration.

Table 20. Stack Limit Configuration Parameters.

Parameter Comment

Stack limit Enabled dual sensor safety

Enabled single sensor non safety

Disabled

Stack limit delay ___hour ___min ___sec

Stack limit response Lockout

Recycle & delay

Stack limit setpoint 32 °F to 266 °F (0 °C to 130 °C)

Delta T Limit Configuration Parameters (R7910A Hydronic Control Only)

Table 21 displays other limit parameters. Use the left and right
arrows to switch between Inlet to Outlet Flow and Exchanger to
Outlet Flow. The parameters are the same for all pumps.

Fig. 49. Delta T Limit configuration.

Table 21. Delta T Limit

Configuration Parameters.

Parameter Comment

Delta T enable Enabled

Delta T degrees 0 °F to 234 °F (-17 °C to 112 °C)

Delta T delay ___hour ___min ___sec

Delta T response Recycle & delay

Delta T retry limit 0–100

Delta T rate limit
enable

Delta T inverse limit
time

Delta T inverse limit
response

Disabled

Recycle & Delay with retry limit
Lockout

Enabled
Disabled

___hour ___min ___sec

Recycle & delay
Recycle & delay with retry limit
Lockout

65-0303—05 28

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

T-Rise Limit Configuration Parameters

Table 22 displays T-Rise limit parameters.

Table 22. T-Rise Limit Configuration Parameters.

Parameter Comment

Outlet T-rise enable Enabled

Disabled

Heat exchanger T­rise enable

T-rise degrees 0 °F to 234 °F (-17 °C to 112 °C)/sec

T-rise response Recycle & delay

T-rise retry limit 0 to 100

T-rise delay ___hour ___min ___sec

Enabled
Disabled

Recycle & delay with retry limit
Lockout

Heat Exchanger High Limit Configuration Parameters

Table 23 displays T-Rise limit parameters.

Table 23. Heat Exchanger High Limit

Configuration Parameters.

Parameter Comment

Heat exchanger high
limit enable

Heat exchanger high
limit setpoint

Heat exchanger high
limit response

Heat exchanger retry
limit

Heat exchanger high
limit delay

Enabled
Disabled

-40 °F to 266 °F (-40 °C to 130 °C)

Recycle & delay
Recycle & delay with retry limit
Lockout

0 to 100

___hour ___min ___sec

Anti-Condensation Configuration
Parameters (R7910A
Control Only

Table 24 displays anti-condensation parameters. Use the left
and right arrows to switch between Central Heat, Domestic Hot
Water, Frost Protection, and Priority parameters.

Fig. 50. Anti-condensation configuration.

Table 24. Anti-Condensation Configuration Parameters.

Parameter Comment

CH Enable Enabled

CH Setpoint -40 °F to 266 °F (-40 °C to 130 °C)

DHW Enable Enabled

DHW Setpoint -40 °F to 266 °F (-40 °C to 130 °C)

Frost Protection
Enable

Anticondensation
Priority

)

Disabled

Disabled

Enabled
Disabled

Anticondensation is more important
than (check those that apply):
Stack limit
Delta T limit
Slow start
Forced rate
Outlet high limit

Hydronic

29 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Frost Protection Parameters (R7910A Hydronic Control Only)

Table 25 displays frost protection parameters.

Fig. 51. Frost Protection configuration.

Table 25. Frost Protection Configuration Parameters.

Annunciation Configuration Parameters

Table 26 displays annunciation configuration parameters.

Fig. 52. Annunciation configuration example.

Table 26. Annunciation Configuration Parameters.

Parameter Comment

CH frost protection
enable

DHW frost protection
enable

Lead Lag frost
protection enable

Outdoor frost
protection setpoint

Lead Lag frost
protection rate

CH pump frost
overrun time

DHW pump frost
overrun time

Enabled

Disabled

Enabled

Disabled

Enabled

Disabled

-40 °F to 266 °F (-40 °C to 130 °C)

(applicable for CH only)

___%

___hour ___min ___sec

___hour ___min ___sec

Parameter Comment

Annunciation enable Enabled

Disabled

Annunciator (1–8)
location

Annunciator (1–8)
short name

Annunciator (1–8)
name

01 - Annunciator 1
02 - Annunciator 2
03 - Annunciator 3
04 - Annunciator 4
05 - Annunciator 5
06 - Annunciator 6
07 - Annunciator 7
08 - Annunciator 8
PII - Pre-Ignition ILK
LCI - Load Control Input
ILK - Interlock

Up to 3 characters

Up to 20 characters

Safety Configuration Parameters

Table 27 through 30 display safety parameters.

NOTE: Login is required to change Safety Parameters and

the SOLA Control will go to a Lockout 2 “waiting for
safety data verification” when a change is made.

65-0303—05 30

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 53. Burner Control Interlocks control. Fig. 54. Burner Control Timings and Rates configuration.

Table 27. Burner Control

Interlocks Configuration.

Parameter Comment

PII enable Enabled

Disabled

LCI enable Enabled

Disabled

Interrupted air switch
(IAS) enable

Enable during purge and ignition
Disabled
Enable during purge

Interlock (ILK) start
check enable

ILK/IAS open
response

ILK bounce detection
enable

No ILK check
ILK check

Recycle
Lockout

Enabled
Disabled

Purge rate proving Fan Speed

High Fire Switch
None

Lightoff rate proving Fan Speed

Low Fire Switch
None

Table 28. Burner Control Timings and Rates Configura-

tion.

Parameter Comment

Prepurge rate RPM or %

Prepurge time ___hour ___min ___sec

Run stabilization time ___hour ___min ___sec

Standby Rate RPM or %

Postpurge rate RPM or %

Postpurge time ___hour ___min ___sec

Forced recycle

___day ___hour ___min

interval time

Fig. 55. Burner Control Ignition configuration.

31 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 29. Burner Control Ignition Configuration.

Parameter Comment

Pilot test hold On

Ignition source Hot Surface Igniter

Pilot type Direct burner constant ignition

Lightoff rate RPM or %

Preignition time ___hour ___min ___sec

Pilot Flame
Establishing Period

Igniter on during 1st half of PFEP

Main Flame
Establishing Period

Flame Threshold μA/V

Off

External ignition

Internal ignition

Direct burner pulsed ignition

Intermittent

Interrupted

15 secs

10 secs

4 secs

Pilot Flame Establishing Period

15 secs

10 secs

5 secs

Table 30. Burner Control Flame

Failure Configuration. (Continued)

Ignite failure retries 1, 3, or 5

MFEP flame failure
response

Run flame failure
response

Fan speed error
response

Recycle
Lockout

Recycle
Lockout

Recycle
Lockout

Safety Parameter Verification

When any of the safety configuration parameters are changed,
the safety parameter verification procedure must be performed
before the control will resume burner control. The control
enters a lockout state, if not already in one, and remains locked
out until this verification procedure is performed.

Safety parameter verification lockout occurs when safety
parameter setting is changed. See Fig. 57.

Fig. 56. Burner Control Flame Failure configuration.

Table 30. Burner Control Flame

Failure Configuration.

Parameter Comment

Ignite failure
response

Ignite failure delay ___hour ___min ___sec

65-0303—05 32

Lockout

Recycle

Recycle & hold

Recycle & lockout

Fig. 57. Safety verification lockout.

The user must log in before verification can be completed, as
shown in Fig. 58.

Fig. 58. Safety verification login.

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

After successful login, the user presses the Begin button to
start safety parameter verification. See Fig. 59.

Fig. 59. Begin safety verification.

The first group of safety configuration parameters that needs
verification is displayed. The user is asked to confirm that the
settings are correct, as shown in Fig. 60.

After the first safety parameter group has been confirmed by
the user (by pressing the Yes button), the next safety
parameter group waits for verification as shown in Fig. 61.

Fig. 61. Safety parameter settings confirmed; next group

waiting for confirmation.

The user has 30 secs to confirm each safety configuration
group’s settings. If the user takes too long to confirm the
settings, an error message is displayed, as shown in Fig. 62.

Fig. 60. Confirm safety parameter settings.

Fig. 62. Confirmation timed out.

After all safety parameter groups have been verified, the user
must press the Reset button on the control within 30 seconds
to confirm the correct device. See Fig. 63.

33 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 63. Reset R7910A or R7911.

When the user has pressed the Reset button on the control,
completing verification procedure, a Verification Complete
screen is displayed, as shown in as shown in Fig. 64.

If for some reason the user does not press the Reset button on
the control within 30 seconds, the configuration is cancelled,
as shown in Fig. 65.

Fig. 65. Control reset timed out.

Fig. 64. Safety parameter configuration complete.

65-0303—05 34

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Individual R7910A or R7911 Configuration Parameters

Table 31 and Table 32 displays system configuration
parameters for individual controls.

Fig. 66. System configuration (R7911 shown).

Table 31. R7910AHydronic

System Configuration Parameters.

Configuration Parameters. (Continued)

Table 32. R7911 System

Parameter Comment

Anti short cycle time ___hour ___min ___sec

Alarm silence time ___day ___hour ___min

Power up with lockout Clear lockout

Do NOT clear lockout

Inlet connector type 0-15 psi

0-150 psi
UNCONFIGURED

Stack connector type 10k NTC dual safety

10k NTC single non-safety
12k NTC single non-safety
UNCONFIGURED

Header 4-20ma

UNCONFIGURED

Fan Parameters

Table 33 displays fan parameters.

Parameter Comment

Flame sensor type Flame rod

Modulation output 4-20mA

Blower/HSI Blower

Temperature units Fahrenheit

Anti short-cycle time ___hour ___min ___sec

Alarm silence time ___hour ___min ___sec

Power up with
Lockout

STAT & EnviraCOM
remote stat

Parameter Comment

Flame sensor type Flame rod

Modulation output 4-20ma

Blower/HSI Blower

Temperature units Fahrenheit

UV power tube
UV power tube with spark interference
None

0-10V
Fan PWM

Hot surface ignition

Celsius

Clear lockout
Do NOT clear lockout

Enabled
Disabled

Table 32. R7911 System

Configuration Parameters.

UV

0-10V
Fan PWM

Hot surface ignitor

Celsius

Fig. 67. Fan configuration.

Table 33. Fan Configuration Parameters.

Parameter Comment

Absolute maximum
fan speed

Absolute minimum
fan speed

Fan gain down 0-100

Fan gain up 0-100

Minimum duty cycle 1-100%

Pulses per revolution 1-10

PWM frequency 1000

Slow down ramp 0-12000 RPM/sec

Speed up ramp 0-12000 RPM/sec

500–12000 RPM

500–12000 RPM

2000
3000
4000

35 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Lead Lag Slave Configuration Parameters (Hydronic Control Only)

Table 34 displays Lead Lag Slave Configuration parameters.

Fig. 68. Lead Lag slave configuration.

Table 34. Lead Lag Slave

Configuration Parameters.

Parameter Comment

Slave enable Slave

ModBUS slave

Disabled

Slave mode Use first

Use last

Equalize run time

Base load rate 0–6000 rpm

Slave sequence
order

Demand to firing
delay

Fan rate during off
cycle

ModBus port MB1

ModBus address 0–250

0–8

___hour ___min ___sec

0–12000 rpm

MB2

No port

Lead Lag Master Configuration Parameters (Hydronic Control Only)

Table 35 displays Lead Lag Master Configuration parameters.

Click the Advanced Settings button to see available advanced
parameters as shown in Table 36–44.

Use the left and right arrows to switch between Modulation,
CH, DHW, Frost Protection, Warm Weather Shutdown,
Algorithms, Rate Allocation, Add stage and Drop stage
parameters.

Fig. 69. Lead Lag master configuration and Advanced

Table 35. Lead Lag Master Configuration Parameters.

Parameter Comment

Master enable Enabled

CH setpoint -40 °F to 266 °F (-40 °C to 130 °C)

CH time of day
setpoint

ModBus port MB1

ModBus address 1–250

Table 36. Lead Lag Master Configuration

Advanced Settings: Modulation Parameters.

Parameter Comment

Modulation backup
sensor

Off hysteresis 0 °F to 234 °F

On hysteresis 0 °F to 234 °F

Hysteresis step time ___Hour ____Minute _____Second

P gain 0 - 400

I gain 0 - 400

D gain 0 - 400

Settings button.

Disabled

-40 °F to 266 °F (-40 °C to 130 °C)

MB2
No port

Lead outlet sensor
Slave outlet sensor average
Disabled

(-17 °C to 112 °C)

(-17 °C to 112 °C)

65-0303—05 36

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 37. Lead Lag Master Configuration

Advanced Settings: Central Heat Parameters.

Parameter Comment

Demand switch Stat

Remote Stat
ModBus Stat
Disabled

Setpoint source Local

ModBus
4-20 ma

Setpoint -40 °F to 266 °F (-40 °C to 130 °C)

Time of day setpoint -40 °F to 266 °F (-40 °C to 130 °C)

4 ma water

-40 °F to 266 °F (-40 °C to 130 °C)

temperature

20 ma water

-40 °F to 266 °F (-40 °C to 130 °C)

temperature

Outdoor reset Enabled

Disabled

Table 38. Lead Lag Master Configuration

Advanced Settings: DHW Parameters.

Parameter Comment

Priority source DHW heat demand

Disabled

Priority method Boost during priority time

Drop after priority time

DHW priority override

___Hour ____Minute _____Second

time

Table 41. Lead Lag Master Configuration

Advanced Settings: Algorithms Parameters.

Parameter Comment

Lead selection
method

Sequence order
Measured run time

Lag selection method Sequence order

Measured run time

Lead rotation time ___day ____hour _____min

Force lead rotation

___day ____hour _____min

time

Table 42. Lead Lag Master Configuration

Advanced Settings: Rate Allocation Parameters.

Parameter Comment

Base load common ? %

Table 43. Lead Lag Master Configuration

Advanced Settings: Add Stage Parameters.

Parameter Comment

Method Error threshold

Firing rate threshold
Disabled

Detection time ___Hour ____Minute _____Second

Error threshold 0 °F to 234 °F (-17 °C to 112 °C)

Rate offset +

________ %

Interstage delay ___Hour ____Minute _____Second

Table 39. Lead Lag Master Configuration

Advanced Settings: Frost Protection Parameters.

Parameter Comment

Enable Enabled

Disabled

Outdoor setpoint -40 °F to 266 °F (-40 °C to 130 °C)

Frost protection rate ____%

Table 40. Lead Lag Master Configuration Advanced

Settings: Warm Weather Shutdown Parameters.

Parameter Comment

Enable Enabled

Disabled

Setpoint -40 °F to 266 °F (-40 °C to 130 °C)

Table 44. Lead Lag Master Configuration

Advanced Settings: Drop Stage Parameters.

Parameter Comment

Method Error threshold

Firing rate threshold

Detection time ___Hour ____Minute _____Second

Error threshold 0 °F to 234 °F (-17 °C to 112 °C)

Rate offset +

________ %

Interstage delay ___Hour ____Minute _____Second

37 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

DETAILS

Details of the hydronic or steam system is accomplished
through the detail status pages. The detail status page is
shown below.

Screens will appear only if they are configured for your system.

Information shown is current status. For example: firing rate is
the current fan speed or motor position; timing shown is current
time Sola is at.

Fig. 70. Hydronic CH detail status page.

Status information on the detail status page is organized into
groups and displayed on the page one group at a time. The
user moves from one group to another using the left and right
arrow buttons.

Status data on the detail status page is displayed in a menu for
the group that is currently displayed. If more status items exist
in the group than will fit on the screen, a vertical scroll bar
allows the user to see all status data. If the user selects a line
of status data in the menu, it will expand in bigger, more easily
readable text, as show in Fig. 71. Additional information about
Status data and groups that are displayed are provided in the
R7910A or R7911 Status section of this document.

R7910A or R7911 Status

Data in Tables 45–Table 56 are displayed on the R7910A
Hydronic or R7911 Steam status pages. A complete list of
Status tables can be found in Table 60 on page 53.

The CH status data shown in Table 45 displays first when the
CH Hydronic heating loop is selected on the Home page.

Table 45. CH Hydronic Status.

Data Comment

CH enable Enabled, Disabled

CH burner demand On or Off

CH pump On or Off

CH pump demand On or Off

CH pump overrun
time

CH requested rate RPM or %

CH OFF setpoint Setpoint plus hysteresis

CH setpoint Temp setting between -40 °F to 266 °F

CH ON setpoint Setpoint minus hysteresis

CH setpoint source Normal, TOD, Outdoor reset, Remote

CH status Disabled, Normal, Suspended

Demand source Sensor only, Sensor and Stat terminal,

Outlet high limit Yes or No

Outlet high limit
setpoint

Outlet sensor state None, Normal, Open, Shorted,

Outlet temperature Outlet temperature (same as bar

Running overtime for CH pump
(seconds)

(-40 °C to 130 °C)

control

Sensor and Remote Stat, LCI and
sensor

Temp setting between -40 °F to 266 °F
(-40 °C to 130 °C)

Outside high range, Outside low
range, Not reliable (None = no outlet
sensor)

graph)

Fig. 71. Hydronic “expanded” detail status.

65-0303—05 38

Fig. 72. CH Hydronic Status menu (top).

Fig. 73. CH Hydronic Status menu (middle).

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 46. DHW Hydronic Status. (Continued)

Data Comment

DHW high limit Temp setting between -40 °F to 266 °F

(-40 °C to 130 °C)

DHW high limit
setpoint

DHW priority override

Temp setting between -40 °F to 266 °F
(-40 °C to 130 °C)

0-600 seconds

time

DHW pump On or Off

DHW pump demand On or Off

DHW pump overrun
time

Running overrun time for DHW pump
(seconds)

DHW requested rate RPM or %

DHW sensor state None, Normal, Open, Shorted,

Outside high range, Outside low
range, Not reliable (None = no outlet
sensor)

DHW OFF setpoint Setpoint plus hysteresis

DHW setpoint Temp setting between -40 °F to 266 °F

(-40 °C to 130 °C)

DHW ON setpoint Setpoint minus hysteresis

DHW setpoint source Normal, TOD, Outdoor reset

DHW status Disabled, Normal, Suspended

DHW temperature DHW temperature (same as bar

graph)

The bar graph displayed for the CH control loop (hydronic) is
the outlet sensor temperature; for the DHW control loop it is
the DHW sensor temperature. When no analog DHW sensor is
installed (digital switch instead), the inlet sensor temperature is
displayed.

Fig. 74. CH Hydronic Status menu (bottom).

The status data in Table 46 displays first when the DHW
Hydronic heating loop is selected on the Home page. Scrolling
through the status groups eventually shows both.

Table 46. DHW Hydronic Status.

Data Comment

DHW enable Enabled, Disabled

Demand source Unknown, No source demand, CH,

DHW, Lead Lag, CH frost protection,
DHW frost protection, No demand due
to burner switch

DHW burner demand On or Off

Fig. 75. DHW Hydronic Status menu (top).

39 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 47. Burner Control Status. (Continued)

Data Comment

Firing rate % or RPM. Adjustable when firing rate

control set to Manual.

Firing rate control Auto or Manual

Flame signal Flame signal strength

Hold code Description of hold message if locked

out

Lockout Description of lockout message if

locked out

Pilot test hold Off or Hold

Remote STAT On or Off

Note: Steam will show Steam psi as the bar graph

Fig. 76. DHW Hydronic Status menu (middle).

Fig. 77. DHW Hydronic Status menu (bottom).

Burner Control Status

The Burner Control status page will display the status data
shown in Table 47.

The bar graph displayed for this status is the outlet sensor
temperature.

Fig. 78. Burner Control Status menu (top).

Table 47. Burner Control Status.

Data Comment

Alarm reason Description for alarm being on (maybe

lockout or a hold message)

Annunciator first out First annunciator input related to

lockout

Annunciator hold First annunciator input related to hold

Burner state Disabled, Locked out, Anti-short cycle,

Unconfigured safety data, Standby

Hold, Standby, Delay, Normal

Standby, Preparing, Firing, Postpurge

Sequence time Running time for timed burner control

operation (seconds)

Delay time Running display of delay time when

burner control in delay state.

65-0303—05 40

Fig. 79. Burner Control Status menu (bottom).

Burner control can be turned on and off in the R7910A or
R7911 by the user.

Hydronic Demand and Modulation Status

Table 49 displays the status page data for R7910A.

Table 48. Hydronic Demand and Modulation Status.

Data Comment

Demand source CH, DHW, Lead Lag, or Frost

Protection (parameter that has current
priority)

Firing rate % or RPM. Adjustable when firing rate

control set to Manual.

Demand rate % or RPM.

Rate limiter None, Outlet high limit, Delta T limit,

Stack limit, Slow start limit, Anti­condensation, Minimum modulation,
Forced rate

Limited rate % or RPM

Rate override Burner control default, Burner control,

manual firing rate off, None

Override rate % or RPM

The bar graph displayed for this status is the outlet sensor
temperature.

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 81. Demand and Modulation Status menu (bottom).

Inlet Temperature Status

Table 49 displays the status page data for R7910A inlet
temperature.

Table 49. Inlet High Limit Status.

Fig. 80. Demand and Modulation Status menu (top).

Data Comment

Inlet sensor state None, Normal, Open, Shorted,

Outside high range, Outside low
range, Not reliable (None=no outlet
sensor)

Inlet temperature Inlet sensor temperature (same as bar

graph)

The bar graph displayed for this status is the inlet sensor
temperature.

Fig. 82. Inlet High Limit Status menu.

Fan Status

Table 50 displays the status page data for the fan in the control.

41 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 50. Control Fan Status.

Data Comment

Fan speed % or RPM (current fan speed)

Maximum fan speed Setpoint of maximum fan speed (% or

RPM)

Minimum fan speed Setpoint of minimum fan speed (% or

RPM)

The bar graph displayed for this status is the fan speed.

Fig. 84. Hydronic CH pump status menu.

Flame Detection Status

The status data shown in Table 52 is displayed for flame
detection in the R7910A or R7911.

Fig. 83. Control Fan Status menu.

Hydronic Pump Status

Table 51 displays the status page data for this example,
Central Heat pump in the R7910A. Screens available for DHW,
Boiler, System, Aux1 and Aux2 will be the same if that pump is
configured.

Table 51. Hydronic CH Pump Status.

Data Comment

CH Pump On or Off

Controlling Pump
Terminal

Status On, Off, or Not Used

Delay time Duration of delay time

Overrun time Duration of overrun time

Frost overrun time Duration of frost overrun time

Idle days Number of days idle

Cycle count Number of cycles

Pump A, B, or C

Table 52. Flame Detection Status.

Data Comment

Flame detected Yes or No

Flame signal Flame signal strength (same as bar

graph)

Pilot test hold Off or hold

The bar graph displayed for this status is the flame signal.

65-0303—05 42

Fig. 85. Flame Detection Status menu.

NOTE: This same status is also displayed for burner control

status. A separate status group is defined to provide a
bar graph of the flame signal.

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Statistics Status

Table 53 displays the statistics status page data for the
R7910A or R7911. Though the Steam control will not have a
pump, the output can be used to run some other auxiliary
equipment.

Table 53. Control Statistics Status.

Data Comment

Burner cycles Number of cycles

Burner run time Duration of run time

CH pump cycles Number of cycles

System pump cycles Number of cycles

Controller cycles Number of cycles

Controller run time Duration of run time

The bar graph displayed for this status is the outlet sensor
temperature.

Stack Limit Status

Table 54 shows the status page data for the control Stack Limit.

Table 54. Stack Limit Status.

Data Comment

Stack limit enable Enabled or Disabled

Stack limit Temp setting between -40 °F to 266 °F

(-40 °C to 130 °C)

Stack limit setpoint Temp setting between -40 °F to 266 °F

(-40 °C to 130 °C)

Stack sensor state None, Normal, Open, Shorted,

Outside high range, Outside low
range, Not reliable (None=no stack
temp sensor)

Stack temperature Stack sensor temperature (same as

bar graph)

The bar graph displayed for this status is the stack sensor
temperature.

Fig. 86. Control Statistics Status menu (top).

Fig. 87. Control Statistics Status menu (bottom).

Fig. 88. Stack Limit Status menu.

Lead Lag Slave Status - Hydronic Only

Table 55 shows the status page data for Lead Lag Slave.

Table 55. Lead Lag Slave.

Data Comment

Type Slave

Command Received Yes/No

Demand Off

Request Rate RPM

Burner Control Standby

Modulating No

Priority

43 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 89. Lead Lag Slave Status menu.

Lead Lag Master Status - Hydronic Only

Table 56 shows the status page data for Lead Lag Master.

Table 56. Lead Lag Master.

Data Comment

Master enabled Enabled

Status normal

Demand source Lead lag slave

Active Service None

Off setpoint 160 °F (71 °C)

Setpoint 150 °F (66 °C)

On setpoint 145 °F (63 °C)

operating
temperature

Sensor state normal

Sensor temperature 150 °F (66 °C)

Slave firing no

Stager state idle

Stager timer

CH demand

CH frost demand no

DHW frost demand no

150 °F (66 °C)

Fig. 90. Lead Lag Master Status menu.

R7910A OR R7911 DIAGNOSTICS

The diagnostic page displays analog and digital I/O status of
the control. The digital I/O data is displayed as LEDs that are
either on (green) or off (red) (see Fig. 91–93). Not all digital I/O
can be displayed at the same time on the page, so a horizontal
scroll bar is used to move the view left and right to show all
digital I/O data.

Fig. 91. Diagnostic digital I/O page (left).

65-0303—05 44

Fig. 92. Diagnostic digital I/O page (center).

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 57. Control Digital I/O Data.

Data Comment

Pump C On/Off

Blower/HSI On/Off

Pilot valve On/Off

Main valve On/Off

Load Control Input On/Off

STAT On/Off

Pre-ignition interlock On/Off

Interlock On/Off

External ignition On/Off

Alarm On/Off

Pilot test hold On/Off

Time Of Day On/Off

Safety relay On/Off

Low Gas On/Off

High Gas On/Off

Annunciator 3 On/Off

Annunciator 4 On/Off

PM On/Off

Annunciator 5 On/Off

Annunciator 6 On/Off

Annunciator 7 On/Off

Annunciator 8 On/Off

PM Lead/Lag On/Off

Fig. 93. Diagnostic digital I/O page (right).

Temperature sensors or pressure sensors also display the
current sensor state, (i.e., whether there is a fault condition or
the sensor is in a normal monitoring state). The user can toggle
between displaying the control digital and analog I/O (the initial
display is the digital I/O). The Digital or Analog button on the
bottom of the diagnostic page changes the I/O displayed to the
type indicated by the button.

The following data is displayed on the control diagnostics page
(see Fig. 91–93).

Table 57. Control Digital I/O Data.

Data Comment

Pump A On/Off

Pump B On/Off

“On” status is indicated by a green LED and “Off” status is
indicated by a red LED.

Table 58. Control Analog I/O Data.

Data Comment

Outlet

Inlet If enabled

Firing rate % or RPM

Flame signal V

Fan speed RPM (if applicable). Should

match with firing rate.

Domestic Hot Water If enabled

Stack If enabled

Outdoor If enabled

Header If enabled

Analog I/O data is displayed as bar charts depicting the I/O
level (see Fig. 94). Analog I/O that is not enabled for the
installation displays a blank I/O level. To see all analog I/O, use
the horizontal scroll bar to move the view left and right.

45 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 94. Diagnostics analog I/O page (left).

INSTALLER CHECKOUT

Diagnostics Tests

Pressing the Diagnostics Test button launches the diagnostic
tests. The first test displayed on the right side of the screen is
the last selected test shown, as seen in Fig. 97.

This screen enables the user to perform the following tests:
Modulation Test: enables the user to verify that the burner is
firing at the correct rate. (See Fig. 97.)
Pilot Test: enables the user to verify that the pilot valve is
functioning properly. The user can also perform burner
adjustments for the pilot flame. (See Fig. 98.)
Pump Test: enables the user to verify that the correct pump is
on or off. The Start Test button will test all pumps; pressing an
individual pump tests that pump only. (See Fig. 99.)

Burner Switch: this button turns the burner on or off.
Start Test: runs the test for 5 minutes.

Fig. 95. Diagnostics analog I/O page (center).

Fig. 96. Diagnostics analog I/O page (right).

Fig. 97. Modulation test.

Fig. 98. Pilot test.

65-0303—05 46

Fig. 99. Pump test.

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

If Contrast or Volume are changed, Fig. 101 displays to allow
saving these changes.

S7999B OR S7999C DISPLAY SETUP AND DIAGNOSTICS

The following pages apply to display setup and diagnostics for
the S7999B or S7999C OI Displays.

Setup

The Setup button on the Home page (for S7999B OI Display)
or Display Setup Button on the Configuration Screen for the
S7999C OI Display is selected to go to these pages. The Setup
screen (see Fig. 100) is displayed first. It allows for some OI
Display settings. The Advanced Setup button permits the user
to run some diagnostic functions for the display and to set
advanced features for run-time operation. See “Advanced
Setup” on page 48 for these features.

Fig. 101. Setup settings changed.

Cleaning the Screen

When the user wants to clean the touch screen, the CLEAN
SCREEN button is selected to freeze touch input temporarily for
30 seconds to allow the user to clean the screen. (See Fig. 102.)

Fig. 102. Clean screen setup.

Fig. 100. R7910A setup.

A countdown screen (Fig. 103) displays during the screen
disable period. It disappears when the touch screen is
re-enabled.

47 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 103. Screen disabled for cleaning.

Pressing the SYSTEM CONFIGURATION button starts up the
system configuration. For more information, see “System
Configuration (S7999B OI DisplayOnly)” on page 19.

Pressing the ADVANCED SETUP button starts the Advanced
Setup.

ADVANCED SETUP

Pressing the ADVANCED SETUP button on the Setup page
displays more options that can be set by the user (Fig. 104).

Fig. 105. Ethernet settings.

A Honeywell software server connectivity check can be
performed by selecting the Check button. This button is only
enabled when the Ethernet interface is enabled and active.
The connectivity check tries for 15 seconds to connect to the
Honeywell software server. Successful connection displays a
“CONNECTED” message on the screen. An unsuccessful
attempt displays “NOT CONNECTED.”

The MAC (Media Access Control) address is a hardware
address that uniquely identifies the S7999B on the network.
This information is likely only of interest to the network
administrator.

The IP (Internet Protocol) address is the address that the
S7999B has been assigned by the DHCP server in the local
network to use for others to access the S7999B. This address
is necessary for the remote user to identify the S7999B in an
FTP (File Transfer Protocol) application for transferring trend
analysis information. Like the MAC address, it is displayed for
informational purposes for the network administrator.

If the IP address has a private network designation (192.x.x.x),
remote access from outside the local network may not be
possible. Contact the network administrator for assistance in
this case. If the IP address is 255.255.255.255, then no IP
assignment has been made, and there is no connection to the
network. This possibility could be due to no physical
connection to an Ethernet network, or there is no DHCP server
present on the Ethernet network. Check with the network
administrator for assistance.

Fig. 104. Advanced Setup.

Ethernet Settings (S7999B Only)

Ethernet Settings is used to enable Ethernet communications
for remote diagnostics, file transfers, and remote support, and
is not typically enabled (Fig. 105). This feature should remain
disabled unless directed to do so for remote troubleshooting.
Once the feature is enabled, the S7999B must be reset to start
it at power-up. The Ethernet interface can also be used to
transfer profile curve files to/from the S7999B over a local
intranet or the Internet.

65-0303—05 48

The Gateway IP address is displayed for informational
purposes for the network administrator. The gateway node
provides remote access for devices located off of the local
network to the S7999B.

The Enable Network checkbox specifies that the Ethernet
interface is on or not when the S7999B is powered up. The
selection must be saved to permanent storage (flash) with the
Save button for it take effect at boot time. This checkbox
should normally be disabled, and enabled when Ethernet
access to the S7999B is necessary. This interface must also
be enabled for the Software Server Connectivity check to
function properly (the Check button). If the Ethernet interface is
disabled, the check procedure fails.

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

The S7999B must be assigned an IP address by a DHCP
server for it to operate on the local network, so the Use DHCP
box should be checked. However, because the S7999B
requires this feature, it ignores the checkbox and always
regards it as checked. The checkbox is included for future
purposes when dynamic IP addressing isn’t required.

Trend Analysis Page (S7999B Only)

Trend analysis of R7910 or R7911 status data can be viewed
on the S7999B. A graph displays a historical view of R7910 or
R7911 status data over varying time periods.

A 2-dimensional graph with status data values shown on the Y
axis over time specified on the X axis is displayed. Status for
the most recent time is represented on the left side of the
graph with older status running towards the right side of the
graph.

The status variable with the largest range (minimum to
maximum) is used as the Y-axis range in the graph.

As the status variables are selected they are listed in a trend
variables list box. The user chooses the status variables from a
drop down menu and then presses the Add button to add each
status variable to the trend variable list. See Fig. 108. After all
status variables have been selected press the Show button to
view the trend analysis graph.

Fig. 106. Trend analysis page.

Up to 4 R7910 or R7911 status variables can be viewed at the
same time on one trend analysis graph. Select the status
variables for the graph on the menu page (see Fig. 107). This
menu displays when the Trend Analysis button is selected on
the R7910 or R7911 status page.

Fig. 108. Trend analysis menu page.

Each status variable displayed in the trend analysis is
represented by a different colored line, as follows:

1. First status variable = green

2. Second status variable = yellow

3. Third status variable = red

4. Fourth status variable = blue

No more than two different measurement units (such as
degrees), are allowed for the status variables selected in the
trend analysis graph. Attempts to add a status variable with a
third measurement unit are rejected.

A second Y axis is displayed on the right side of the graph to
represent the scale for the second measurement unit. This can
result in minor clipping of the curves on the right side, as
shown in Fig. 109 and 110.

Fig. 107. Trend analysis menu page.

49 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Fig. 109. Trend analysis page with firing rate.

the graph so the Y axis depicts different degrees of detail for
the data range. The viewing window can be moved up and
down the graph to see the complete range when zoomed in.

The smallest measurement interval is a single whole digit (no
fractional precision) when the entire range exceeds 10 units,
e.g., 20–30 degrees.

Pressing the Stop button will pause trend data updates of the
graph. The graph “freezes” the view when stopped. However,
trend data sampling from the R7910 or R7911 continues
regardless whether the graph update is stopped or not.
Restarting the updates causes the graph to be refreshed with
the latest data samples.

Pressing the Clear button will clear the trend sample data for
an R7910 or R7911. All trend data for the R7910 or R7911 is
cleared including status variables that are not included in the
graph. The user is asked to confirm this action before
proceeding.

NOTE: For system trend analysis graphs the Clear button

isn’t present, so no status variables can be cleared.

A snapshot of the trend analysis graph can be taken and saved
to the S7999B. The user is asked to confirm the save before it
occurs.

Fig. 110. Trend analysis page with demand source.

If any of the status variables has degrees as a unit of
measurement, degrees is used for the main Y axis (on the left
of the graph). The status variables selected are saved and are
displayed by default when the trend analysis menu page is first
displayed. Status data is updated on the graph with new status
at the same rate as the sample time period selected. The
current sample time period is displayed in a button on the page
(in Fig. 109 and 110, the button is “Seconds”).

Status older than the sample time period is dropped from the
right end of the curve as newer status appears on the left end
of the curve.

NOTE: While this snapshot is saved, trend data sampling for

all R7910s or R7911s is temporarily halted. Gaps or
static level values occur in the trend data as a result.

The date and time that the snapshot is taken is stored with the
snapshot. Only the status variables displayed in the graph are
stored in the snapshot. All raw sample data for the status
variables are stored so that any sample rate can be viewed
offline.

Sample data stored in snapshot is either the real-time status at
the time that the Save button is pressed or it is the sample data
at the time that the graph is stopped.

Special case trend analysis graphs for PID tuning can be
viewed for CH, DHW, and Lead Lag demands.

Trend data can be viewed in one-second (most recent 60
second time period), 15-second (most recent 15-minute time
period), and hour (most recent 24 hour time period) intervals.

NOTE: Full graphs require that the S7999B has been moni-

toring the R7910 or R7911 for the complete time
period. Partial graphs display if this is not the case.

The buttons at the bottom can be used to change the view of
the graph. The user can change the sample rates of the
display by pressing the Seconds, Minutes, Hours, or Days
button (the button changes depending on what sample rate is
currently displayed). The + and - buttons zoom in and out of

65-0303—05 50

Fig. 111. PID Trend analysis page.

Data included in the PID analysis graph are:

• Sensor temperature (outlet for CH, DHW for DHW, and
header for Lead Lag)

• Setpoint (for corresponding demand source)

• Burner firing rate

• Hysteresis on (for corresponding demand source)

• Hysteresis off (for corresponding demand source)

The Clear button is disabled for the PID analysis (doesn’t apply to
hysteresis).

The default sample rate is 15 sec periods (a tick mark on the X axis
for every 15 second period, with minutes displayed every 4 tick
marks).

Special case trend analysis graph for R7910/R7911 vessel heat
exchange can be selected.

Table 59. R7910/R7911 Trend Analysis Data. (Continued)

Data Comment

Stack temperature If enabled

Header temperature (R7910
only)

CH setpoint Actual CH setpoint based on

DHW setpoint (R7910 only) Actual DHW setpoint based

Central Heat Operation
Analysis

Domestic Hot Water
Operation Analysis (R7910
only)

Vessel Analysis

If enabled

time of day (TOD).

on TOD.

Trend Analysis Snapshot

The trend analysis snapshot file is stored in Comma Separated Value
(CSV) format in the S7999B so it can be imported into a spreadsheet
program such as Microsoft Excel.

The trend analysis snapshot file can be viewed in graph form on the
S7999B. It is also accessible in an Ethernet FTP session with the
S7999B. This FTP session can be used to export the trend analysis
snapshot file from the S7999B.

Fig. 112. Vessel analysis page.

Data included in the vessel analysis graph are:

• Outlet temperature

• Inlet temperature

• Heat exchange (outlet – inlet)

• Burner firing rate

Automatic sampling of trend data takes place when the trend
analysis report is displayed. No user intervention is necessary to
invoke sampling.

NOTE: Sample data is collected and stored in the S7999B. The

R7910 or R7911 don’t collect any historical data for trending
purposes. For this reason any S7999B reset causes all
R7910 or R7911 sampling to start over with no data.

Trend analysis of the following data from each R7910/R7911 is
possible:

Table 59. R7910/R7911 Trend Analysis Data.

Data Comment

Demand source CH, DHW, LL (Lead Lag), or

FP (Frost Protection) Steam
Sensor

Outlet temperature (R7910
only)

Firing rate % or RPM

Fan speed PWM feedback

Flame signal strength V

Inlet temperature (R7910
only)

DHW temperature (R7910
only)

Outdoor temperature If enabled

If enabled

If enabled

Diagnostics

Pressing the Diagnostics button permits some display hardware
diagnostics (see Fig. 104). Normally, these diagnostics are

applicable only for factory testing purposes, but conditions may
arise that warrant this testing.

Fig. 113. Display diagnostics.

NOTE: COM 1 Communication test is a factory-only test. Perform-

ing this text when not connected to a factory test fixture will
always yield a “Failed” result.

Each test is invoked by pressing the Test button next to the
diagnostic. The results of the diagnostic test (“PASS” or “FAIL”)
display in the text box next to the Test button.

Date and Time

Display time can be configured in the S7999B and S7999C OI
Displays and applied to the R7910A or R7911. A date and time is
entered by the user at the display and any data that is timestamped is
marked with the current time and date in the display.

51 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

The Display clock is set by selecting the Date and Time button
on the Advanced Setup page. A screen similar to the following
figure (Fig. 114) displays.

NOTE: It’s important that the time be set in the Display so

correct timestamps are given to the R7910A or
R7911 lockouts. The display’s time and date need
to be set should power be interrupted to the dis­play.

Fig. 116. Code Version—bottom view.

User Preferences

The User Preferences button displays General options as well
as those for for COM1 and COM2.

Fig. 114. Display Date and Time.

Edit the date and time and press the OK button to set the new
settings. Press the Cancel button to exit without changing the
time or date.

Version

Pressing the Version button on the Advanced Setup page
displays manufacturer and software version information (Fig.
115 and 116).

Fig. 115. Code version—top view.

Fig. 117. General tab.

The General tab (see Fig. 117) contains the following settings:

• Display alerts on Status Summary Bar? This determines
whether non-safety alerts will be shown on the summary bar
of the home page.

• Display empty parameter groups? This cleans up the
home page by hiding unused parameter groups.

• Automatic synchronization with control when
connections is made? This allows automatic display of
new control to update when the connection is identified
instead of manually making the synchronization when the
operator is ready.

• Sound Audio Alarm for faults? This uses the display
speaker to sound an alarm on shutdown for SOLA faults.

The COM1 tab (see Fig. 118) contains the following setting:

• Modbus address range 1-N: Sets the Modbus address for
the connected device (range is 1 to 250).

65-0303—05 52

Fig. 118. COM1 tab.

Fig. 120. Processor Reset.

S7999B Only

COM2 is a Modbus gateway for Building Automation System (BAS)
networking.

Press the COM2 tab (see Fig. 119) to define settings:

• Enable Modbus Gateway: This box must be selected to enable
the COM2 BAS interface.

• Modbus Gateway Speed: Select the baud rate (38400, 19, 200,
or 9600 bps)

• Modbus Gateway Timeout: Defines how long the BAS will wait
after sending a Modbus message before timing out and sending
the next modbus message (currently non-functional; leave at 1.0)

When the Display is reset, the display will reboot and automatically
seek out the Modbus™ device connected to it. When the search is
complete, the display will return to the home page.

Table 60. Status Tables.

Name Table # Page #

CH 45 38

DHW 46 39

Burner Control 47 40

Demand and Modulation 48 41

Inlet High Limit 49 41

Fan 50 42

Pump 51 42

Flame Detection 52 42

Statistics 53 43

Stack Limit 54 43

Lead Lag Slave 55 43

Lead Lag Master 56 44

Parameters

A complete list of configurable parameters is shown in Table 61.

Fig. 119. COM 2 tab.

Display Reset

The user can reset the display and force a power-up by pressing the
Display Reset button. A pop-up dialog box confirming the reset
request displays (Fig. 120) before the reset proceeds.

Table 61. Configurable Parameters.

Table #Page

Parameter Comment

Boiler Name Name to identify boiler (up to 20

characters)

Installation Notes regarding installation (up

to 20 characters)

Installer
password

OEM
password

Factory Data OEM name to associate with

53 65-0303—05

Change installer password
setting

Change OEM password setting

boiler (up to 20 characters)

621

#

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 61. Configurable Parameters. (Continued)

Parameter Comment

CH enable Disable or Enable Central

Heating Loop

CH demand
switch

Sensor for Central Heat
demand:
Sensor only
Sensor & STAT terminal
Sensor & Remote Stat
LCI & Sensor

CH Outdoor
reset

CH has

Enabled
Disabled

Yes, No, Cancel
priority over
Lead Lag

CH Setpoint
source

Local

S2 (J8-6) 4-20mA

CH Setpoint Setpoint for normal Central

Heat modulation:

-40 °F to 266 °F

(-40 °C to 130 °C)

CH time of
day setpoint

Setpoint when Time Of Day

switch is on. -40 °F to 266 °F

(-40 °C to 130 °C)

CH off
hysteresis

Differential above setpoint

when boiler is turned off. -40 °F

to 266 °F (-40 °C to 130 °C)

CH on
hysteresis

Differential from setpoint when

boiler is turned on.-40 °F to 266

°F (-40 °C to 130 °C)

4 mA water
temperature

20 mA water
temperature

Modulation
sensor

Modulation

-40 °F to 266 °F

(-40 °C to 130 °C)

-40 °F to 266 °F

(-40 °C to 130 °C)

Outlet sensor, Inlet sensor, S5

(J8-11)

Local
Rate Sensor

CH P-gain Time between hysteresis step

changes: 0-400

CH I-gain Time between hysteresis step

changes: 0-400

CH D-gain Time between hysteresis step

changes: 0-400

Hysteresis
step time

Time between hysteresis step

changes: 0-600 seconds

(0=Disable hysteresis stepping)

Table #Page

#

821

Table 61. Configurable Parameters. (Continued)

Parameter Comment

Steam

Disable/enable steam feature 9 22

enable

Steam
demand
source

Sensor and LCI
Sensor and Remote Stat
Sensor and Stat Terminal
Sensor Only

Steam
pressure
setpoint

Steam time
of day
setpoint

Minimum
steam
pressure

Setpoint for normal modulation
Adjustable 0 to 15 or 0 to 150
(sensor dependant)

Setpoint when TOD switch on
Adjustable 0 to 15 or 0 to 150
(sensor dependant)

Establishes setpoint for the
4ma. input.
Adjustable 0 to 15 or 0 to 150
(sensor dependant)

Steam
pressure off
hysteresis

Differential below setpoint when
boiler is turned off
Adjustable 0 to 15 or 0 to 150
(sensor dependant)

Steam
pressure on
hysteresis

Differential from setpoint when
boiler
is turned on.
Adjustable 0 to 15 or 0 to 150
(sensor dependant)

Steam
hysteresis
step time

Steam P
Gain

Time between hysteresis
changes 0 to 600 seconds
(0=disable)

Gain applied for the P portion of
the PID equation
0-400

Steam I Gain Gain applied for the I portion of

the PID Equation - 0-400

Steam D
Gain

Gain applied for the D portion of
the PID equation
0-400

Steam 4-20
ma remote
control

uses 4-20ma remote control
function to control either the
setpoint or modulation for
Steam
Disable, setpoint, modulation

CH maximum
outdoor

-40 °F to 266 °F
(-40 °C to 130 °C)

temperature

CH minimum
outdoor

-40 °F to 266 °F
(-40 °C to 130 °C)

temperature

Low water
temperature

Minimum
water

-40 °F to 266 °F
(-40 °C to 130 °C)

-40 °F to 266 °F
(-40 °C to 130 °C)

temperature

Maximum off
point

-40 °F to 266 °F
(-40 °C to 130 °C)

Table #Page

#

10 22

65-0303—05 54

Table 61. Configurable Parameters. (Continued)

Table 61. Configurable Parameters. (Continued)

Parameter Comment

DHW enable Disable or Enable Domestic Hot

Water Loop

DHW
demand
switch

Sensor for Central Heat
demand:
DHW sensor only,
DHW sensor & Remote Stat,
DHW switch & inlet sensor, or
DHW switch & outlet sensor

DHW Priority
source

Which system has priority:
Disabled or
Heat Demand

DHW Priority
method

DHW
Modulation
sensor

Boost during priority time
Drop after priority time

DHW Sensor
Outlet Sensor
Inlet Sensor
Auto: DHW (S6) or Inlet Sensor
Auto: DHW (S6) or Outlet
Sensor

DHW
setpoint

DHW time of
day setpoint

-40 °F to 240 °F
(-40 °C to 115 °C)

Setpoint when Time Of Day
switch is on. -40 °F to 240 °F
(-40 °C to 115 °C)

DHW off
hysteresis

Differential above setpoint
when boiler is turned off. -40 °F
to 240 °F (-40 °C to 115 °C)

DHW on
hysteresis

Differential from setpoint when
boiler is turned on. 2 °F to
234 °F (-16 °C to 112 °C)

DHW priority

___hour ___min ___sec

override time

DHW
hysteresis
step time

DHW priority
vs CH

Time between hysteresis step
changes: 0-600 seconds
(0=Disable hysteresis stepping)

Which system has priority:
Central Heat over Domestic Hot
Water, or
Domestic Hot Water over
Central Heat

DHW priority
vs LL

Which system has priority:
Lead Lag over Domestic Hot
Water,
Domestic Hot Water over Lead
Lag

DHW P-gain Time between hysteresis step

changes: 0-400

DHW I-gain Time between hysteresis step

changes: 0-400

DHW D-gain Time between hysteresis step

changes: 0-400

DHW storage

Enabled, Disabled 12 23

enable

Storage time ___hour ___min ___sec

Setpoint -40 °F to 266 °F

(-40 °C to 130 °C)

Off

-0 °F to 180 °F (-17 °C to 82 °C)

hysteresis

On

-0 °F to 180 °F (-17 °C to 82 °C)

hysteresis

Tab le #Page

#

11 23

Parameter Comment

Tap detect

-0 °F to 180 °F (-17 °C to 82 °C) 13 23

degrees

Tap detect on

___hour ___min ___sec
recognition
time

Tap detect on

-0 °F to 180 °F (-17 °C to 82 °C)

threshold

Tap detect

___hour ___min ___sec
minimum on
time

Tap stop

-0 °F to 180 °F (-17 °C to 82 °C)
inlet-DHW
degrees

Tap stop

-0 °F to 180 °F (-17 °C to 82 °C)
outlet-Inlet
degrees

Plate preheat
setpoint

Plate preheat

-40 °F to 266 °F

(-40 °C to 130 °C)

___hour ___min ___sec
on
recognition
time

Plate preheat

-0 °F to 180 °F (-17 °C to 82 °C)

on hysteresis

Plate preheat

-0 °F to 180 °F (-17 °C to 82 °C)

off hysteresis

Plate preheat

-0 °F to 180 °F (-17 °C to 82 °C)
detect on
threshold

Plate preheat

-0 °F to 180 °F (-17 °C to 82 °C)
detect off
threshold

Plate preheat

___hour ___min ___sec
minimum on
time

Plate preheat

___hour ___min ___sec
delay after
tap

Warm

Enabled, disabled 14 24
Weather
Setpoint
Enable

Warm
Weather

-40 °F to 266 °F

(-40 °C to 130 °C)
Setpoint

Table #Page

#

55 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 61. Configurable Parameters. (Continued)

Parameter Comment

CH maximum

RPM or % 15 25
modulation
rate

DHW

RPM or %
maximum
modulation
rate

Minimum

RPM or %
modulation
rate

CH forced

0-600 seconds
rate time

CH forced

RPM or %
rate

DHW forced

0-600 seconds
rate time

DHW forced

RPM or %
rate

CH slow start
enable

DHW slow
start enable

Slow start
degrees

Slow start
ramp

Enabled

Disabled

Enabled

Disabled

-40 °F to 266 °F

(-40 °C to 130 °C)

RPM /minute or %/minute

0-10/4-20 mA Output hysteresis

0-10/4-20 mA
Output
hysteresis

4-20 mA
input
hysteresis

Pump control Auto

On

Pump output Pump A

Pump B

Pump C

None

Pump start

___hour ___min ___sec
delay

Overrun time ___hour ___min ___sec

Boiler pump
output

Pump A

Pump B

Pump C

None

Table #Page

#

17 26

Table 61. Configurable Parameters. (Continued)

Parameter Comment

Auxiliary
pump control

Auxiliary
pump is on

Auto
On

CH pump is ON
Slave command

when

Auxiliary
pump output

Pump A
Pump B
Pump C
None

Boiler pump
control

Boiler pump
output

Auto
On

Pump A
Pump B
Pump C
None

Boiler pump
overrun time

CH pump
control

CH pump
output

0-600 seconds
0 = Not configured

Auto
On

Pump A
Pump B
Pump C
None

CH pump
overrun time

System
pump control

System
pump output

0-600 seconds
0 = Not configured

Auto
On

Pump A
Pump B
Pump C
None

System
pump ourrun

0-600 seconds
0 = Not configured

time

Pump
exercise time

Auxiliary

0-600 seconds
0= Not configured

0-999,999 18 27

pump cycles

Boiler pump

0-999,999

cycles

Burner cycles 0-999,999

Burner run

0-999,999

time

CH pump

0-999,999

cycles

DHW pump

0-999,999

cycles

System

0-999,999

pump cycles

Auxiliary 2

0-999,999

pump cycles

Table #Page

#

17 26

65-0303—05 56

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 61. Configurable Parameters. (Continued)

Parameter Comment

DHW high
limit

DHW high
limit
response

DHW high
limit setpoint

Outlet high
limit

Enabled
Disabled

Suspend DHW
Recycle & hold
Lockout

-40 °F to 266 °F
(-40 °C to 130 °C)

Recycle & hold
Lockout

response

Outlet high
limit setpoint

-40 °F to 266 °F
(-40 °C to 130 °C)

Stack limit Enabled

Disabled

Stack limi t

0-600 seconds

delay

Stack limi t
response

Stack limi t
setpoint

Delta T
enable

Delta T
degrees

Lockout
Recycle & delay

-40 °F to 266 °F
(-40 °C to 130 °C)

Enabled
Disabled

-40 °F to 266 °F
(-40 °C to 130 °C)

Delta T delay 0-600 seconds

Delta T
response

Recycle & delay
Lockout

Delta T retry
limit

Delta T rate
limit enable

Delta T

Enabled
Disabled

___hour ___min ___sec
inverse limit
time

Delta T
inverse limit
response

Outlet T-rise
enable

Heat
exchanger T-

Recycle & delay

Recycle & delay with retry limit

Lockout

Enabled

Disabled

Enabled

Disabled
rise enable

T-rise
degrees

T-rise
response

0 °F to 234 °F

(-17 °C to 112 °C)

Recycle & delay

Recycle & delay with retry limit

Lockout

T-rise retry

0 to 100
limit

T-rise delay ___hour ___min ___sec

Table #Page

#

19 27

20 28

21 28

22 29

Table 61. Configurable Parameters. (Continued)

Parameter Comment

Heat
exchanger

Enabled

Disabled
high limit
enable

Heat
exchanger

-40 °F to 266 °F

(-40 °C to 130 °C)
high limit
setpoint

Heat
exchanger
high limit

Recycle & delay

Recycle & delay with retry limit

Lockout
response

Heat

0 to 100
exchanger
retry limit

Heat

___hour ___min ___sec
exchanger
high limit
delay

CH anticon­densation

Enabled

Disabled
enable

CH anticon­densation

Normal (no change)

CH pump forced off
pump

CH anticon­densation

-40 °F to 266 °F

(-40 °C to 130 °C)
setpoint

DHW anti­condensa-

Enabled

Disabled
tion enable

DHW anti­condensa-

Normal (no change)

DHW pump forced off
tion pump

DHW anti­condensa-

-40 °F to 266 °F

(-40 °C to 130 °C)
tion setpoint

Anticondensa
tion Priority

Anticondensation is more

important than (check those

that apply):

Stack limit

Delta T limit

Slow start

Forced rate

Outlet high limit

Table #Page

#

23 29

24 29

57 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 61. Configurable Parameters. (Continued)

Parameter Comment

CH frost
protection

Enabled
Disabled

enable

DHW frost
protection

Enabled
Disabled

enable

Lead Lag
frost

Enabled

Disabled
protection
enable

Outdoor frost
protection
setpoint

Lead Lag

-40 °F to 266 °F

(-40 °C to 130 °C)

(applicable for CH only)

___%
frost
protection
rate

CH pump

___hour ___min ___sec
frost overrun
time

DHW pump

___hour ___min ___sec
frost overrun
time

Annunciation
enable

Annunciator
(1–8) location

Enabled

Disabled

01 - Annunciator 1

02 - Annunciator 2

03 - Annunciator 3

04 - Annunciator 4

05 - Annunciator 5

06 - Annunciator 6

07 - Annunciator 7

08 - Annunciator 8

PII - Pre-Ignition ILK

LCI - Load Control Input

ILK - Interlock

Annunciator

Up to 3 characters
(1–8) short
name

Annunciator

Up to 20 characters
(1–8) name

Table #Page

#

25 30

26 30

Table 61. Configurable Parameters. (Continued)

Parameter Comment

PII enable Enabled

Disabled

LCI enable Enabled

Disabled

Interrupted
air switch
(IAS) enable

Enable during purge and
ignition
Disabled
Enable during purge

Interlock
(ILK) start

No ILK check
ILK check

check enable

ILK/IAS open
response

ILK bounce
detection

Recycle
Lockout

Enabled
Disabled

enable

Purge rate
proving

Fan Speed
High Fire Switch
None

Lightoff rate
proving

Fan Speed
Low Fire Switch
None

Prepurge

RPM or % 28 31

rate

Prepurge
time

Run
stabilization

0-600 seconds
0 = Not configured

0-600 seconds
0 = Not configured

time

Standby Rate RPM or %

Postpurge

RPM or %

rate

Postpurge
time

Forced

0-600 seconds
0 = Not configured

___hour ___min ___sec
recycle
interval time

Table #Page

#

27 31

65-0303—05 58

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 61. Configurable Parameters. (Continued)

Parameter Comment

Pilot test hold On

Off

Ignition
source

Hot Surface Igniter
External ignition
Internal ignition

Pilot type Direct burner constant ignition

Direct burner pulsed ignition
Intermittent
Interrupted

Lightoff rate RPM or %

Preignition
time

Pilot Flame
Establishing
Period

Igniter on
during

Main Flame
Establishing
Period

Flame

0-600 seconds
0 = Not configured

15 secs
10 secs
4 secs

1st half of PFEP
Pilot Flame Establishing Period

15 secs
10 secs
5 secs

μA/V

Threshold

Ignite failure
response

Lockout
Recycle
Recycle & hold
Recycle & lockout

Ignite failure
delay

Ignite failure

0-600 seconds
0 = Not configured

1, 3, or 5

retries

MFEP flame
failure

Recycle
Lockout

response

Run flame
failure

Recycle
Lockout

response

Fan speed
error

Recycle
Lockout

response

Table #Page

#

29 32

30 32

Table 61. Configurable Parameters. (Continued)

Parameter Comment

Flame sensor
type

Flame rod
UV power tube
UV power tube with spark
interference
None

Modulation
output

4-20mA
0-10V
Fan PWM*

Blower/HSI Blower

Hot surface ignition

Temperature
units

Anti short­cycle time

Alarm silence
time

Power up
with Lockout

STAT &
EnviraCOM

Fahrenheit
Celsius

0-600 seconds
0 = Not configured

0-600 minutes
0 = Not configured

Clear lockout
Do NOT clear lockout

Enabled
Disabled

remote stat

Flame sensor
type

Modulation
output

Flame rod
UV

4-20ma
0-10V
Fan PWM

Blower/HSI Blower

Hot surface ignitor

Temperature
units

Anti short

Fahrenheit
Celsius

0-600 minutes

cycle time

Alarm silence

0-600 minutes

time

Power up
with lockout

Inlet
connector
type

Stack
connector
type

Clear lockout
Do NOT clear lockout

0-15 psi
0-150 psi
UNCONFIGURED

10k NTC dual safety
10k NTC single non-safety
12k NTC single non-safety
UNCONFIGURED

Header 4-20ma

UNCONFIGURED

Table #Page

#

31 35

32 35

59 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 61. Configurable Parameters. (Continued)

Parameter Comment

Absolute

RPM 33 35
maximum fan
speed

Absolute

RPM
minimum fan
speed

Fan gain

0-100
down

Fan gain up 0-100

Minimum

1-100%
duty cycle

Pulses per

1-10
revolution

PWM
frequency

1000

2000

3000

4000

Slow down

0-12000 RPM/sec
ramp

Speed up

0-12000 RPM/sec
ramp

Slave enable Slave

ModBUS slave

Disabled

Slave mode Use first

Use last

Equalize run time

Base load

0–6000 rpm
rate

Slave

0–8
sequence
order

Demand to

___hour ___min ___sec
firing delay

Fan rate

0–12000 rpm
during off
cycle

ModBus port MB1

MB2

No port

ModBus

0–250
address

Master
enable

Enabled

Disabled

CH setpoint -40 °F to 266 °F

(-40 °C to 130 °C)

CH time of
day setpoint

-40 °F to 266 °F

(-40 °C to 130 °C)

ModBus port MB1

MB2

No port

ModBus

0–250
address

Table #Page

#

34 36

35 36

Table 61. Configurable Parameters. (Continued)

Parameter Comment

Modulation
backup
sensor

Off
hysteresis

On
hysteresis

Hysteresis
step time

Lead outlet sensor
Slave outlet sensor average
Disabled

0 °F to 234 °F
(-17 °C to 112 °C)

0 °F to 234 °F
(-17 °C to 112 °C)

___Hour ____Minute
_____Second

P gain 0 - 400

I gain 0 - 400

D gain 0 - 400

Demand
switch

Stat
Remote Stat
ModBus Stat
Disabled

Setpoint
source

Local
ModBus
4-20 ma

Setpoint -40 °F to 266 °F

(-40 °C to 130 °C)

Time of day
setpoint

4 ma water
temperature

20 ma water
temperature

Outdoor
reset

Priority
source

Priority
method

DHW priority
override time

-40 °F to 266 °F
(-40 °C to 130 °C)

-40 °F to 266 °F
(-40 °C to 130 °C)

-40 °F to 266 °F
(-40 °C to 130 °C)

Enabled
Disabled

DHW heat demand
Disabled

Boost during priority time
Drop after priority time

___Hour ____Minute
_____Second

Enable Enabled

Disabled

Outdoor
setpoint

Frost

-40 °F to 266 °F
(-40 °C to 130 °C)

____%
protection
rate

Enable Enabled

Disabled

Setpoint -40 °F to 266 °F

(-40 °C to 130 °C)

Table #Page

#

36 36

37 37

38 37

39 37

40 37

65-0303—05 60

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Table 61. Configurable Parameters. (Continued)

Parameter Comment

Lead
selection

Sequence order
Measured run time

method

Lag selection
method

Lead rotation

Sequence order
Measured run time

___day ____hour _____min

time

Force lead

___day ____hour _____min

rotation time

Base load

? % 42 37

common

Method Error threshold

Firing rate threshold
Disabled

Detection
time

Error
threshold

Rate offset +

Interstage
delay

___Hour ____Minute
_____Second

0 °F to 234 °F
(-17 °C to 112 °C)

________ %

___Hour ____Minute
_____Second

Table #Page

#

41 37

43 37

Table 61. Configurable Parameters. (Continued)

Table #Page

Parameter Comment

Method Error threshold

44 37
Firing rate threshold
Disabled

Detection
time

Error
threshold

Rate offset +

Interstage
delay

___Hour ____Minute
_____Second

0 °F to 234 °F
(-17 °C to 112 °C)

________ %

___Hour ____Minute
_____Second

Table 62. Other Tables.

Name Table # Page #

4-pin Connector Terminals 2 10

Lockout History 3 16

Alert Log 4 16

Digital I/O Data 57 45

Analog I/O Data 58 45

#

61 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

65-0303—05 62

.205 (5)

3.50 (89)

.330 (8)

8.93

(227)

5.45

(138)

5.40 (137)

Fig. 121. S7999C front-mount template.

63 65-0303—05

M28852

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

65-0303—05 64

M28851

8.93

(227)

3.50 (89)

4.30 (109)

1.50 (38)

.92 (23)

.75 (19)

.330 (8)

5°

.205 (5)

5.45

(138)

Fig. 122. S7999C rear-mount template.

65 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

65-0303—05 66

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

67 65-0303—05

S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

Automation and Control Solutions

Honeywell International Inc.

1985 Douglas Drive North

Golden Valley, MN 55422

Honeywell Limited-Honeywell Limitée

35 Dynamic Drive

Toronto, Ontario M1V 4Z9

customer.honeywell.com

® U.S. Registered Trademark
© 2010 Honeywell International Inc.
65-0303—05 M.S. Rev. 04-10
Printed in U.S.A.