Bosch Control Air M User manual

Control Air M and M+
For Commercial Water to Water DDC Applications
Installation & Operation Manual
BTC 469503103 A (2019/02) US

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02.2019 | BTC 469503103 AData subject to change

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Table of Contents
1 Key to Symbols and Safety Instructions 4
1.1 Key to Symbols 4
1.2 Safety Warnings 4
2 Introduction 5
2.1 The Control Air M/M+ Interfaces 5
2.2 The Control Air M/M+ Module 5
2.3 Virtual Control Air M/M+ (Equipment Touch (OEM) APP) 5
3 Specifications 6
4 Physical Dimensions 7
5 Wiring 8
5.1 Recommended Wiring Scheme 8
5.2 Rnet Wiring Specifications 8
6 Connection 8
6.1 Communicate Using a Tablet Through Virtual Control Air M and M+ 8
6.2 To Wire and Mount the Control Air M/M+ 8
6.3 Additional Information on Connecting Control Air
M/M+ to a Controller 9
7 How to Navigate Screens in Control Air M/M+ 11
7.1 Login 11
7.2 Alarms 11
7.3 Trends 11
8 To Update the Control Air M/M+’s Firmware 12
8.1 Prerequisite 12
8.2 To Update the Firmware 12
8.3 Resetting the Control Air M/M+ 12
8.4 Compliance 13
9 The Control Air M and M+ Screens 14
9.1 Units Status Screen/Home Page 14
9.2 Settings Screen 14
9.2.1 Unit Settings Screen 14
9.2.2 Device Settings Screen 16
9.2.2.1 Controller Screen 16
9.2.2.1.1 Set Time and Date 16
9.2.2.1.2 Communication 16
9.2.2.1.3 Router 17
9.2.2.1.4 IP 17
9.2.2.1.5 Time Master 17
9.2.2.2 Touchscreen Screen 18
9.2.3 Alarms Settings Screen 18
9.2.4 Pumps 19
9.2.5 Temperature 19
9.2.6 Setpoints 19
9.2.7 Schedule Screen 20
9.2.8 Lead/Lag Screen 22
9.3 Service Screen 22
9.3.1 Heat/Cool Screen 23
9.3.2 UPM Status Screen 23
9.3.3 Help Screen 24

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1 Key to Symbols and Safety Instructions
1.1 Key to Symbols
Warnings
Warnings in this document are identified by a warning
triangle printed against a grey background.
Keywords at the start of a warning indicate the type and
seriousness of the ensuing risk if measures to prevent the
risk are not taken.
The following keywords are defined and can be used in this document:
DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION indicates a hazardous situation which, if not
avoided, could result in minor to moderate injury.
NOTICE is used to address practices not related to personal
injury.
Important information
This symbol indicates important information where
there is no risk to people or property.
1.2 Safety Warnings
WARNING: ELECTRIC SHOCK HAZARD
Installation and servicing of this equipment can be
hazardous due to the electrical components. Only
trained and qualified personnel should install, repair,
or service the equipment.
WARNING: ELECTRIC SHOCK HAZARD
Before performing service or maintenance
operations on the system, turn off main power to the
unit. Electrical shock could cause personal injury or
death.
WARNING: FIRE, INJURY HAZARD
When working on equipment, always observe
precautions described in the literature, tags,
and labels attached to the unit. Follow all safety
codes. Wear safety glasses and work gloves. Use
a quenching cloth for brazing, and place a fire
extinguisher close to the work area.
WARNING: ELECTRIC SHOCK HAZARD
To Reduce the risk of Fire or Electric Shock, Do
not interconnect the outputs of different class 2
circuits.
WARNING:
This product can expose you to chemicals including
Lead and Lead components, which are known to
the State of California to cause cancer and birth
defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov.

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2 Introduction
2.1 The Control Air M/M+ Interfaces
The Control Air M and M+ (M=Manager) is a Human-Machine Interface
(HMI) that interfaces with the BOSCH DDC Control Air 5600, enabling the
user to view and change property values, and/or control parameters, to
match a corresponding application whether it is a Water to Air or Water to
Water Heat Pump. It also provides a means of accessing and modifying the
controller’s schedule and real time clock in applications where a system
server or Building Automation System (BAS) is not available. The Control
Air M is designed for applications where there is one (1) WSHP. The
Control Air M+ is designed for applications where there is up to fifty (50)
WSHP's (existing networks only).
The software is normally configured at the factory to match the unit
configuration, however, there are cases where additional on-site changes
need to be made and this screen will allow the qualified technical or
commissioning agent to incorporate such changes (without having to
download a different software application) via the commissioning tool.
The interface is offered in two forms: as a wall mount or unit mounted
Control Air M/M+module or in the form of an APP called the Equipment
Touch (OEM), which can be found in the Google Play Store (Android Only).
2.2 The Control Air M/M+ Module
The Control Air M/M+ module (Figure 1) is a touchscreen device with a
4.3" color LCD display that you connect to a Control Air 5600 to view or
change its property values, schedule units, view trends and alarms, and
more. The unit connects to the controller via the onboard serial port. The
module can be purchased by the following part numbers:
Control Air M (8733951042)
Control Air M+ (8733951043)
Connecting Cable(VirtualControlAirM/M+only)(8733908163)
The module is only compatible with the Control Air 5600 controller.
Figure 1
Home screen
Previous screen
Alarms screen
Touch a button to
display that screen
Touch to display:
2.3 Virtual Control Air M/M+ (Equipment Touch (OEM) APP)
Virtual Control Air M/M+ (see Figure #2) provides the end-user an
interface to a controller by way of a Android Tablet and a purchased USB-L
cable (8733-927-403). The adapter; USB to micro USB (not provided by
BOSCH) may be needed if USB port is not available on Android device.
This adapter, not provided by Bosch, needs to be a female USB to male
micro USB. Once the cables are purchased, the corresponding driver will
need to be downloaded and installed before using the application. The
USB or micro USB end of the cable is connected to the Android device,
and the serial end is connected to the DDC controller. The Control Air M/
M+ cable driver, and instruction manual are all available for free download
at the Bosch Thermotechnology website.
WARNING: FIRE, INJURY HAZARD
When working on equipment, always observe
precautions described in the literature, tags,
and labels attached to the unit. Follow all safety
codes. Wear safety glasses and work gloves. Use
a quenching cloth for brazing, and place a fire
extinguisher close to the work area.
Figure 2

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3 Specifications
Description Value
Power 24 Vac (+/-15%), 5 VA, 50-60 Hz, Class 2
Backlit LCD display 4.3" resistive touchscreen color LCD discplay with backlighting WQVGA 480x272 px
Cable 6 ft. (1.8 m) cable to connect to controller's Local Access port.
Communication Rnet: 2-wire EIA-485 port for connection to the Rnet sensor network (115 kbps)
Memory
—16 MB Flash memory to store screen file.
—1.5 MB RAM to store variable data and LCD data.
—4 KB Serial EEPROM to store non-volatile configuration data.
Operating Range -4° to 140°F (-20°C to 60°C), 10%-90% RH noncondensing
Overall dimensions
—Width: 5-7/16 in. (138mm)
—Height: 4-1/16 in. (116mm)
—Depth: 1-3/8 in. (30mm)
Weight 0.54 lbs (0.24 kg)
Listed by UL-916 (PAZX), CE, FCC Part 15-Subpart B-Class A
Temperature Sensor
—Range @ 95% RH: -4°F to 140°F (-20°C to 60°C)
—Range @ 20% RH: -4°F to 194°F (-20°C to 90°C)
—Accuracy @ 25°C: ±0.4°C
—Accuracy over 20°C to 30°C: ±0.5°C
—Accuracy over 10°C to 45°C: ±1.0°C
—Accuracy over full range: ±2.5°C
—Resolution: 0.01°C
Humidity Sensor
—Range: 0 to 100% RH
—Accuracy over 20 to 80% RH: ±3.0% RH
—Accuracy over full range: ±5.0% RH
—Resolution: 0.05 RH
Table 1 Specifications

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4 Physical Dimensions
Figure 3
Side View - Right Back View with Mounting Plate
Side View - LeftBack View without Mounting Plate
Mounting Plate
1.242
5.440
5.440
4.550
4.550 3.938
4.799
Control Air M/M+ Module Termination Details
Figure 4
Back View with Mounting Plate Mounting Plate

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5 Wiring
The Control Air M communicates through a Rnet connection. The Control
Air M is intended for use with a single WSHP. It can be wired using the
instructions in section 6. The Control Air M+ communicates through a
BACnet MS/TP connection. The Control Air M+ is intended for use with up
to 50 WSHP's on an exisiting network.
5.1 Recommended Wiring Scheme
Connectthis wire: To this terminal on the Control Air M:
Red 24 VAC (R)
Black 24 VAC (C)
White Rnet+
Blue Rnet-
Table 2 Power Wiring
2-conductor wire 18 AWG for distances up to 100 feet. All transformer
secondaries must be grounded. Wiring connections must be in
accordance with NEC and local codes. All wiring and mounting screws
must be field supplied.
5.2 Rnet Wiring Specifications
NOTICE:
Use the specified type of wire and cable for maximum
signal integrity.
Description Value
Cable 4 conductor, unshielded, or unshielded
CMP, plenum rated cable
Conductor 22 AWG (7x0096) bare copper
Maximum length 500 feet (152 meters)
Recommended coloring Jacket: White
UL temperature 32–167°F (0–75°C)
Voltage Limited Listing 300 VAC, power UL: NEC CL2P, or better
Insulation Low-smoke PVC (or equivalent)
Color Code Black, white, green, red
Shielding If shielded, Aluminum/Mylar shield
(100% coverage) with TC drain wire
Table 3
6 Connection
6.1 Communicate Using a Tablet Through Virtual Control Air M and M+
In lieu of using the module to interface with the controller, a connection
may be established at the local access port of the controller to perform
testand balanceoperationsor to make changestoany deviceonthe network.
6.2 To Wire and Mount the Control Air M/M+
1. Remove the backplate from the Control Air M/M+
a. Hold the Control Air M/M+ as shown in the picture below.
b. While firmly pressing the 2 tabs on top of the Control Air M/
M+, pull on the backplate with your index finger until the
backplate releases from the Control Air M/M+.
Figure 5
2. Pull the communication cable, power cable, and external
thermistor wiring (if applicable) through the large hole in the center
of the backplate.
3. Partially cut, then bend and pull off the outer jacket of the Rnet
cable(s). Do not nick the individual wire insulation.
4. If wiring 1 cable to the Control Air M/M+, cut the shield wire off at
the outer jacket, then wrap the cable with tape at the outer jacket
to cover the end of the shield wire. If wiring 2 cables in a daisy-
chain configuration, twist together the shield wires, then wrap the
shield wires with tape.
5. Strip about 0.25 inch (0.6 cm) insulation from the end of each
wire.
6. Connect wiring to the Control Air M/M+ as shown in Figure 6.
Figure 6

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CAUTION: ELECTRIC SHOCK HAZARD
Allow no more than 0.06 inch (1.5 mm) bare
communication wire to protrude. If bare
communication wire contacts the cable's foil shield,
shield wire, or a metal surface other than the
terminal block, the device may not communicate
correctly.
Figure 7
7. Attach the backplate to the wall or panel. If mounting in or on a
panel:
a. Drill two 3/16 inch (4.8 mm) pilot holes in the panel.
b. Attach backplate using pan head 6-32 x 3/8" to l/2" long
machine screws. Do not overtighten screws to prevent
damage to plastic housing.
It is recommended to use Loctite 220 on screw threads if the
Control Air M/M+ will be subject to vibration.
8. Attach the Control Air M/M+ to the backplate:
a. Place the bottom of the Control Air M/M+ onto the backplate
by aligning the 2 slots on the Control Air M/M+ with the tabs
on the backplate.
b. Push the Control Air M/M+ onto the backplate until the tabs
at the top of the Control Air M/M+ snap onto the backplate.
9. Turn off the controller's power.
10. Connect the other end of the Rnet wiring to the controller's Rnet
port or to a zone sensor.
- Insert the shield wire with the ground wire into the controller's
GND terminal.
- Use the same polarity throughout the Rnet or MS/TP.
11. Connect power wiring to a 24 Vac power supply.
12. Turn on the controller's power.
6.3 Additional Information on Connecting Control Air
M/M+ to a Controller
Connect the Control Air M/M+ module (or Android tablet if using Virtual
Control Air M/M+) to the serial port on the DDC controller as indicated
below.
CAUTION: ELECTRIC SHOCK, INJURY HAZARD
If the equipment is used in a manner not specified
by the manufacturer, the protection provided by
the equipment may be impaired.
Mounting
The Control Air M/M+ must be mounted within the building interior. You
can mount the Control Air M/M+:
In a panel with the controller or on the panel door
On a wall up to 500 feet from the controller
Wiring
The Control Air M/M+ requires a 24 Vac power supply. It is not powered by
the Rnet.
CAUTION: ELECTRIC SHOCK HAZARD
The Control Air M/M+ can share a power supply
with the DDC controller as long as you:
1. Maintain the same polarity.
2. User the power supply only for DDC
controllers.
You can also wire an external 10 kOhm, Type II thermistor to the Control
Air M/M+. See External sensor resistance requirements (Table 6, page
13).

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Figure 8
Control Air
M/M+
connector
Establishing Communication
Plug the USB-L cable to the USB (Bosch part number 8733-927-403)
to USB micro adapter (field supplied) and then to the Android tablet and
controller before launching Virtual Control Air M/M+ (Equipment Touch
(OEM) app). The DDC controller must be connected to a 24 VAC source
and powered on.
Figure 9
8733-927-403
Not provided
by Bosch

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7 How to Navigate Screens in Control Air M/M+
7.1 Login
The following displays if the screen you selected requires a password.
Enter your password, then touch Done.
Figure 10
Each screen is programmed with one of the following password levels:
A screen having this
passwordlevel… Can be accessed by…
User A user logged in with the User, Admin, or
Factory password
Admin A user logged in with the Admin or Factory
password
Factory A user logged in with the Factory password
No password Anyone
Table 4
The default password for a new Control Air M/M+ is 0000.
You can change passwords on the Control Air M/M+ by going to
Touchscreen Setup > Passwords screen.
You log out on the Setup screen.
7.2 Alarms
The Alarm screen allows the user to view up to 100 events starting with
the most recent. It also allows user to see which points have gone into
alarm and retuned to normal as well as the ones that have been manually
cleared.
Figure 11
7.3 Trends
Figure 12
This screen can be accessed from the Help Screen on the Service page
(Home -> Service -> Help -> Trends). It allows the end user to view trends
for points that have trending enabled.
Figure 13

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8 To Update the Control Air M/M+’s Firmware
The Control Air M/M+ has a USB port at the bottom that allows you to
update the device's firmware from a USB flash drive.
8.1 Prerequisite
The USB flash drive must be formatted as FAT, FAT16, or FAT32. To verify,
right-click the flash drive in Windows Explorer, then select Properties.
File system should show FATxx. If File system shows NTFS or anything
else, you must reformat the drive. Right-click the flash drive, then select
Format. In the File system field, select FAT (Default), then click Start.
NOTICE:
Follow the steps below in order. If you select Reload
Firmware (step 3) on the display before you insert
the USB drive (step 2), the touchscreen will become
inoperable.
8.2 To Update the Firmware
1. Create a folder on the flash drive called Touch, then put the
ETxxxxxx.hex file in the folder.
2. Plug the flash drive into the Control Air M/M+'s USB port.
3. From the System screen, touch Setup > Touchscreen Setup >
Reload Firmware.
4. A warning message appears. Touch Yes to continue.
5. The following series of messages appear:
Verifying Firmware Image
Reading Firmware Image from USB
Installing Application
Verifying Firmware Image.
6. When the Home screen displays, remove the flash drive.
8.3 Resetting the Control Air M/M+
You can create a reset.dat file and put it on a USB flash drive to reset some
of the Control Air M/M+’s functionality.
Prerequisite
The USB flash drive must be formatted as FAT, FAT16, or FAT32. To verify,
right-click the flash drive in Windows Explorer, then select Properties.
File system should show FATxx. If File system shows NTFS or anything
else, you must reformat the drive. Right-click the flash drive, then select
Format. In the File system field, select FAT (Default), then click Start.
1. Insert the USB flash drive into your computer.
2. Create a folder on the flash drive named Touch.
3. In a text editor such as Notepad, start a new file.
4. In the file, type a function number from the table below.
5. Save the file to the flash drive's Touch folder with the name reset.
dat.
6. For function 01 or 02, copy any updated firmware .hex file or .stv
file in the Touch folder.
7. Insert the flash drive into the USB port at the bottom of the Control
Air M/M+.
8. Cycle power to the Control Air M/M+.
If… Then you should… Function
number
You cannot get to
the Touchscreen Reload the firmware 01
You need to
quickly update
the firmware on
several Control Air
M/M+ devices
Reload the firmware - Put the
new firmware in the Touch
folder with the reset.dat file 01
You want to carry
your Control Air
M/M+ from site
to site.
Your Control
Air M/M+ has a
unrecoverable
error from site
to site
Reset factory defaults 04
The Control
Air M/M+ does
not respond
correctly to the
location where
you touched the
screen
Calibrate the touchscreen 08
Table 5

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8.4 Compliance
FCC Compliance
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 required to
correct the interference at his own expense.
NOTICE: HARMFUL INTERFERENCE HAZARD
Changes or modifications not expressly approved
by the responsible party for compliance could void
the user’s authority to operate the equipment.
CE Compliance
NOTICE: HARMFUL INTERFERENCE HAZARD
This is a Class A product. In a domestic
environment, this product may cause radio
interference in which case the user may be
required to take adequate measures.
External sensor resistance requirements
Temp (°C) Temp (°F) Resistance (Ohms)
-40 -40 335,651
-35 -31 242,195
-30 -22 176,683
-25 -13 130,243
-20 -4 96,974
-15 5 72,895
-10 14 55,298
-5 23 42,315
0 32 32,651
5 41 25,395
10 50 19,903
15 59 15,714
20 68 12,494
25 77 10,000
30 86 8,056
35 95 6,530
40 104 5,325
45 113 4,367
50 122 3,601
55 131 2,985
60 140 2,487
65 149 2,082
70 158 1,752
Table 6

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9 The Control Air M and M+ Screens
9.1 Units Status Screen/Home Page
The Unit Status screen (Figure 14) is the home page for the Control Air
M, and shows the main menus/categories of the software the user can
interface with on the devices.
Settings – For an installer, these settings allow for changes to
the device, as well as unit configuration at start-up.
Service – For a service technician, this menu allows a user to
diagnose or troubleshoot the unit.
The screen provides valuable unit diagnostic data - entering and leaving
water temperatures, states of the compressors, Reversing valve, Pump.
It gives the user the ability to change the temperature units between
Fahrenheit and Celsius. The header of the screen is common to most
screens.
Figure 14
9.2 Settings Screen
The Settings page allows the user to access one of the following pages:
Unit Settings
Device Settings
Alarm Settings
*Pumps
Temperature
Schedule
Setpoints
*Lead/Lag
* If configured in Unit Settings.
Figure 15
9.2.1 Unit Settings Screen
This screen can be accessed from the Settings menu. This menu allows
the commissioning agent to setup or modify operational parameters of the
unit.
Once all operational parameters are configured, these settings may be
saved and archived to flash memory by selecting the Save Settings check-
box.
Figure 16
Occupancy Command
Under the Unit Settings screen, this parameter is used to select the
control source that will provide the occupancy command to the unit. The
options for this variable are the following:
Digital Input
Local Schedule
BAS Command
Manual Override
Throughout the setup process, by selecting different boxes, this
is how you advance to the next setup screen if available, while
the back arrow is used to backtrack to previous screens.
Digital Input: The Digital Input option may be selected if the unit
occupancy is required to be controlled remotely via a switch (dry
contact) or other binary input. The connection (typically from a room
occupancy sensor) should be made in IN-1 of the controller. Choosing
this setting allows the unit to be placed in occupied mode once the
input is shorted to ground, and in unoccupied mode once the input is
opened.
Local Schedule: Schedule runs the unit on a local, modifiable
schedule, which cannot be accessed over a network. The occupancy
schedule for heating or cooling can be set according to the morning,
daytime, and night time settings for each day of the week. The option
will allow the unit to run on an 8:00 AM to 5:00 PM default schedule
everyday if the unit is to be started up during the construction phase of
the project. See the Schedule Screen for more information.

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BAS Command: The unit factory default for the Occupancy Command
parameter is set to BAS Command. A qualified technical agent may change
the parameter to be BAS Command, if different from the default setting. This
option will enable the unit to be commanded from the BAS Server. The unit
is ready for BAS integration once this parameter is set up, and it can then
be commanded to occupied or unoccupied via the BAS by writing to the
Occupancy Status integration point (refer to Integration Points List document).
Manual Override: If the unit is intended to run all the time it can be set
to Manual Override, which will override the schedule and set the unit
into occupied mode indefinitely, until the Manual Override option is
deselected.
Compressor Stages
This parameter allows the user to choose the number of compressors and stages
for the application. This parameter is typically set up from the factory to match the
unit configuration and should only be changed by a qualified technician.
Ensure the compressor configuration is set accurately as this
selection will determine the code structure for reporting
compressor safety alarms from the Unit Protection Module
(UPM) to the controller. The fault codes for a 1 compressor 1
stage unit are different from that for a 2 compressor 2 stage unit.
2 Compressor 2 Stages: This value is selected when unit has 2 compressors
and each compressor will operate as an independent stage.
1 Compressor 2 Stages: This value is selected when unit has 1 compressor
that has two independent stages. This is the default setting from the factory.
1 Compressor 1 Stage: This value is selected when unit has 1 compressor with
only 1 stage of operation.
Mode Selection Method
This setting is similar to a thermostat mode select feature, which gives the user the
option of setting the unit mode. The options are: Heat, Cool, Off, Auto and Digital
input. When operating on Digital Input mode the unit will change from heat to cool
by using the state of the digital input (IN6) on controller as follows:
Off = Heat
On = Cool
This feature is typically used when the unit is not configured into a BAS network.
However, if there is a BAS network, it is recommended to operate the unit using
the integration points.
Figure 17
Night Setback Enable:
This parameter allows users to enable or disable night setback feature.
Enabling Night setback will operate the unit under the following setpoints
when it enters the unoccupied state.
74°F (adj.) Cooling setpoint.
85°F (adj.) Heating setpoint.
Disabling it puts the unit in an OFF state and the unit will not try to meet
any setpoints.
Aux Output Enable
This parameter can be used to energize the Auxiliary output (DO-5). This
is a manual setting and DO-5 is not configured to support any device in
particular. Its a simple On/Off function for D0-5 and is Off by default.
Use Optional Pump Output
When this parameter is set to Yes, BO-1 can be used for pump output.
Selecting Yes also enables the "Pump" configuration page on the Settings
screen.

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9.2.2 Device Settings Screen
Figure 18
The Device Settings menu allows the user to adjust or reset any settings
on the actual Control Air M/M+ module.
On this screen the BACnet® ID will be displayed. This value can be
changed, however, it is not recommend to change this parameter
arbitrarily as it may cause network problems.
Always consult with Network Administrator (Front End company) before
changing the controllers BACnet® ID as it may interfere with other devices
in the network.
Two main sub menus are available on this screen:
Controller
Touchscreen
9.2.2.1 Controller Screen
Figure 19
This screen provides access to the device Module Setup menu, that
provides the end-user the ability to set the time/date, update device
communication information, and access to the Time Master page.
9.2.2.1.1 Set Time and Date
Touch the time or date field to edit it.
Figure 20
9.2.2.1.2 Communication
This screen lets you edit the information below for the controller.
Figure 21
Touch a field to tap in new information.
—BACnet Device Instance – number
—Auto Generate Device ID – Enter No or Yes
You can edit the following fields that pertain to the controller's MS/
TP network:
—Max Masters - Set this to the highest MAC
address (up to 127) on the MS/TP network. If
you later add a device with a higher address, you
must change this field to that new address.
—Max Info Frames - Specifies the maximum
number of information messages a controller
may transmit before it must pass the token to the
next controller. CAUTION Increasing this number
allows the controller to transmit more messages
while it has the token, but it also increases the
overall time it takes for the token to pass through
the network.
For a router, set this value to a high number such as 200
In non-router controllers, use the following formula to
calculate this value: [2 - (devices * (.002 + (80/baud))] /
[(600/baud) * devices] = Max Info Frames
For example, if the network has 15 devices at 19200 baud,
Max Info Frames would be 4.
You may need to increase the result of the formula for controllers
that need to communicate many values to other devices.

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9.2.2.1.3 Router
Lets you view or edit the router's ARC156, MS/TP, or Ethernet
network number.
Figure 22
Touch a field to tap in the new number on the keypad.
9.2.2.1.4 IP
Lets you view or edit network addresses and the UDP Port.
Figure 23
Touch a field to tap in the new number on the keypad.
9.2.2.1.5 Time Master
If the controller can be a BACnet Time Master, this screen lets you
configure how it sends time synchronization broadcasts.
Figure 24
Time Sync Mode - Tap in the number below that represents your
selection:
—0 = No Broadcast - The controller will not act as Time
Master.
—1 = Local Broadcast - If it doesn't already exist, a
BACnet address with network number and MAC address
length both set to zero is added to the controller's Time
Synchronization Recipients list found on the driver's
Device page in WebCTRL®. The controller will then send
time broadcasts only to controllers on its ARCnet or MS/
TP network.
—2 = Global Broadcast - If it doesn't already exist, a global
address with network number set to 65535 and MAC
address length set to zero is added to the controller's
Time Synchronization Recipients list found on the driver's
Device page in WebCTRL®. The controller will then send
time broadcasts to all its connected networks.
Time Sync Interval - Enter how often local or global time
broadcast should be sent (1-9999 minutes). If Time Sync Interval
is set to zero, no time sync messages are sent.
If the controller looks through its Time Synchronization Recipient
List and finds an entry with MAC address length set to zero and
network number set to 65535, the controller's BACnet Time
Master mode is set for Global Broadcast. If there is no global
broadcast entry in the recipient list, the controller then looks for
a local broadcast address (MAC address length set to zero and
network number set to zero or to the same network number as
the module's). If such an entry is found, the BACnet Time Master
mode is set for Local Broadcast. Otherwise, the mode defaults to
Disabled/None.

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9.2.2.2 Touchscreen Screen
Figure 25
This screen provides the end-user the ability to edit and modify the
touchscreen settings.
Touch a button to go to one of these screens:
Screen Description
About Displays information about the touchscreen firmware
Inactivity
Timeout
Lets you define how long the Control Air M can have
no activity before returning to the Standby screen and
logging out the user. Set to 0 to deactivate this feature
Sensor
Setup
Lets you set up the Control Air M temperature
and humidity sensors. See Using Control Air M’s
temperature and humidity sensors to control
equipment
Clean
Screen
Displays a one-minute count-down timer so that you
can clean fingerprints from the display window without
touching something that would affect equipment
operation.
Key Click
Off/On
Touch Key Click Off to turn off the sound when you
touch a field or button. Touch Key Click On to turn on
the sound
Alarm
Sound
Off/On
Touch Alarm Sound Off to turn off the alarm notification
sound or touch Alarm Sound On to turn on the sound.
An alarm will generate a sound only if it is set up by
Bosch
Reload
Firmware
Erases the current firmware so that you can load new
firmware through the USB port. See To update the
Control Air M/M+'s firmware
Passwords Let you change the User or Admin password, if allowed.
Calibrate
Touch
Panel
Lets you recalibrate the Control Air M/M+ by touching
targets. The device is calibrated in the factory, but
time, temperature, or handling could affect the
calibration. Recalibrate the screen if you touch it in one
location and it responds as if you touched it in another.
Table 7
9.2.3 Alarms Settings Screen
The Alarm Settings screen can be accessed from the home page
through the Settings menu. This screen allows the user to adjust heat
pump unit alarm settings, including:
Set values for alarm trip limits on leaving water temperature.
Set values for entering water temperature differentials
Set Pump and compressor(s) runtime trip values.
Figure 26
Figure 27

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9.2.4 Pumps
This screen can be accessed from the Home page through the Setting
Menu. This screen Allows the user to view and/or adjust the following
parameters:
Run Continuously in Occupied mode:This parameter when
set to "Yes" runs the pump continuously in the occupied mode
and if set to "No", cycles with the compressor
Pump Output: This parameter does not indicate is the pump
output is actually energised, instead indicates if there is a
pump call.
Pump Start Counter (total): This value indicates how many
times in total the pump was started after its corresponding
reset.
Pump Start Counter (Last hr): This value indicates how many
times in the last hour the pump was started.
Figure 28
9.2.5 Temperature
The Temperature Screen can be accessed from the home page through
the Settings menu. This screen allows the user to view the following
temperatures and temperature setpoints.
Entering water temperature
Leaving water temperature
Auto changeover temperature
Effective cooling setpoint
Effective heating setpoint.
Figure 29
9.2.6 Setpoints
This screen can be accessed from the Settings screen. It allows the user to
adjust the following setpoints and differentials
Occupied heating and cooling setpoints
Unoccupied heating and cooling setpoints
Heat/Cool Setpoint differential
Heat/Cool Stage 2 setpoint differential
Auto Changeover setpoint and deadband
Figure 30
Figure 31

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9.2.7 Schedule Screen
The Schedule menu can be accessed from the home page through the
Settings menu. This screen allows the user to view, add, edit, or delete
BACnet schedules in the controller.
Figure 32
The controller comes with the following default schedule:
Day of Week Time Mode
MON-FRI 8:00AM - 5:00PM Occupied Mode
SAT 7:00AM - 3:00PM Occupied Mode
SUN 10:00AM - 1:00PM Occupied Mode
Table 8
Viewing Schedules
Month View (default)
Figure 33
The schedule screen is configured to display the monthly view by default.
To change to weekly view, click drop down option and change accordingly.
Week View
Figure 34
Which days of the week shown have schedules (indicated by
green bars).
If you see Schedule editing disabled at the bottom of the screen
instead of Add Schedule, scheduling is being done through
another application and is disabled for the Control Air M+.
Touch a day to see the schedule(s) for that day. In the screen
below, touch a schedule’s name or green bar (not the Effective
Schedule bar) to edit or delete the schedule.
Figure 35
The Effective Schedule is the combined result of the day's
schedule(s).
You cannot edit a schedule's Type (Dated, Weekly, Continuous),
its Priority (Normal or Override), or whether the schedule is an
ON Schedule or Off Schedule. If you need to change any of these
settings, delete the schedule, and then make a new one.