Bosch CRC200 Installation Instructions For Contractors
Installation instructions for contractors
CRC200
6 720 811 153-00.1O
Comfort Room Controller
6 720 821 651 (2017/05)
6 720 821 651 (2017/05) CRC200
2 | Contents
Contents
1 Explanation of symbols and safety instructions . . . . 3
1.1 Guideline to symbols . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Product Information . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.1Control types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.2Possible applications in different heating systems 5
2.2 Important instructions for use . . . . . . . . . . . . . . . . 6
2.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.6 Applicability of the technical documentation . . . . 7
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Installation location . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Power connection . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4 Attaching or removing the user interface . . . . . . 10
4 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1 Basic settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2 Checklist: Important settings for commissioning 14
6 Switching off power . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Service menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.1 System data menu . . . . . . . . . . . . . . . . . . . . . . . . . 17
8.2 Heating zone menu . . . . . . . . . . . . . . . . . . . . . . . . 19
8.3 Function test menu . . . . . . . . . . . . . . . . . . . . . . . . 23
8.4 Info menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.5 Maintenance menu . . . . . . . . . . . . . . . . . . . . . . . . 25
8.6 System info menu . . . . . . . . . . . . . . . . . . . . . . . . . 25
9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10 Environmental protection/disposal . . . . . . . . . . . . . . 28
11 Setup log (Service menu/contractor) . . . . . . . . . . . . 29
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6 720 821 651 (2017/05)CRC200
Explanation of symbols and safety instructions | 3
1 Explanation of symbols and safety
instructions
1.1 Guideline to symbols
Warnings
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
Additional symbols
1.2 Safety instructions
These installation instructions are
intended for competent persons who
are skilled in dealing with water
installations, heating and electrical
systems.
▶ Read the installation instructions
(heat sources, modules, etc.) before
starting the installation.
▶ Observe safety instructions and
warnings.
▶ Observe national and regional
regulations, technical rules and
guidelines.
▶ Document all work performed.
Designated use
▶ Use the product only to control
heating systems in single- or multifamily dwellings.
Any other use is considered improper.
Any resulting damage is excluded from
the manufacturer's warranty.
Installation, commissioning and
maintenance
Installation, commissioning and
maintenance may be performed only by
a licensed contractor.
▶ Never install the product in wet areas.
▶ Install only genuine spare parts.
Electrical work
Electrical work may be carried out only
by qualified electricians.
▶ Before starting electrical work:
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.
This symbol indicates important information
where there is no risk to people or property.
Symbol Function
▶ Sequence of steps
Cross-reference to other points in this
document or to other documents
• Listing/list entry
– Listing/list entry (2nd level)
Outdoor temperature dependent function
Flashing display (e. g. flashing 1)
Table 1 Additional symbols
6 720 811 156-11.1O
HC assignment
HC assignment
6 720 821 651 (2017/05) CRC200
4 | Product Description
– Isolate all poles and secure against
unintentional reconnection.
– Ensure the system has been
disconnected from the power
supply.
▶ Never connect the product to line
voltage.
▶ Also observe the connection
diagrams for other system
components.
Handing over to the operator
Installing contractor - Please train the
end user in proper use of this product.
▶ Explain operation – especially all
safety-related actions.
▶ Point out that conversion or repair
may be carried out only by a licensed
contractor.
▶ Provide a copy of these installation
and operating instructions to the end
user for future reference.
Risk of damage from frost
The system can freeze if it is switched
off:
▶ Observe the instructions for frost
protection.
▶ Always leave the system switched on
for additional functions, e. g. water
heating or anti-seize protection.
▶ Immediately correct any faults that
occur.
2 Product Description
2.1 Product Information
• The user interface is used to control a heating zone and a
DHW tank charging circuit for water heating directly at the
heat source.
• The user interface incorporates a time program:
– Preset for the heating zone, but freely adjustable with 6
switching times per day
– Water heating may be controlled with or without time
program.
• The user interface displays information about the heat
source and heating system and is used to change the
settings.
• Installation options: On the wall with a BUS connection to a
heat source or CZM100 module with an EMS-BUS Interface
(Energy Management System).
• After operating for 1½ hours, the user interface has a
power reserve of at least four hours. If the power failure
lasts longer than the power reserve, the time and date will
be deleted. All other settings are retained.
• The functional scope and thus the menu structure of the
user interface are determined by the structure of the
system. Your attention is drawn to the importance of the
system structure at the relevant places in these
instructions. The control ranges and factory settings may
differ from the information in these instructions.
2.1.1 Control types
The following control options are available:
Outdoor reset operation ( ):
• simple outdoor reset control
• optimized outdoor reset control.
This operation requires additional optional outdoor sensor
accessory
Room temperature-dependent operations:
• supply temperature control
• power output control
The supply temperature is adjusted using the heating curve in
outdoor reset controls ( ) (with or without room
Functions that are relevant only in conjunction
with the outdoor temperature are identified by
a corresponding symbol ( ).
There are boilers that have integrated outdoor
reset controls. In such boilers, the outdoor
reset control must be deactivated.
6 720 821 651 (2017/05)CRC200
Product Description | 5
temperature influence). Simple and optimized variants are
available.
In the simple outdoor reset control ( ) the heating curve is
a straight line.
In the optimized outdoor reset control ( ) the heating
curve is an actual curve. The relationship between the outdoor
temperature and the supply temperature is therefore very
precise.
Supply temperature control and output control are available for
room temperature-dependent control.
With supply temperature control, the CRC200 reacts to a
difference between the current and the required room
temperature by changing the supply temperature. This method
of control is suitable for apartments and residential houses.
With power output control, which is possible only in systems
with one heating zone and no CZM100, the CRC200 reacts to a
difference between the current and the required room
temperature by changing the heat output of the heat source.
There are fewer burner starts and shorter pump runtimes. This
saves energy and enhances the boiler’s and the pump’s
lifetime.
2.1.2 Possible applications in different heating systems
Heating system with one CRC200
Fig. 1 Example of a heating system with one heating zone
HC 1 and a CRC200 as controller (single-family
home)
The CRC200 serves as the controller for heating systems with
one heating zone and water heating ( Fig. 1). The user
interface is installed in a suitable living space.
Heating systems with several CRC200
Fig. 2 Example of a heating system with three heating
zones with one CZM100 and one CRC200 per zone
as the controller.
Usually, in heating systems with several heating zones, each
zone is individually controlled by a CRC200 ( Fig. 2). In this
case, the following applies:
Each CRC200 controls its heating zone independently. In other
words, the CRC200 controls the assigned heating zone
completely (e. g. HC 3, Fig. 2) in terms of room
temperature, time program, vacation program and immediate
tank charging. In addition to the automatic mode, manual
operation is also possible.
Central settings are adopted from the CRC200 in the first
heating zone. This includes parameterization of water heating
and the low loss header / header sensor. This means that water
heating settings for the storage tank temperature and thermal
disinfection are made in heating zone 1 on the CRC200. On the
CRC200 for heating zones 2 ... 8, it is possible to set one
operating mode for water heating. The heat source selects the
highest value from the set point values received. In addition,
manual override for tank charging is possible. When the system
is operating, all requests from the individual CRC200 are
processed, i. e. each request for hot water is implemented. If
the vacation program is active in the CRC200 for heating
zone 1, only the assigned first heating zone and the hot water
set point in the CRC200 for heating zone 1 are affected. Water
heating is still based on the set point values in the CRC200 for
heating zones 2 ... 8. This ensures on-demand heating and
availability of hot water for each heating zone based on the
settings in each individual CRC200.
HC 1
CRC200
HC 1
6 720 811 153-03.1O
CRC200
HC 2
HC 3
HC 1
6 720 811 156-01.1O
CZM100
CRC200
CRC200
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6 | Product Description
2.2 Important instructions for use
• The user interface may be connected only to heat sources
with Bosch EMS-BUS or CZM100 for multi-zone
applications.
• This user interface is intended only for wall-mounted
installation ( Chapter 3, starting at page 7).
2.3 Scope of delivery
Fig. 3 Scope of delivery
[1] User interface
[2] Technical documentation
[3] Screws and anchors
WARNING: Risk of scalding!
▶ If hot water temperatures are set above
140 °F (60 °C) or thermal disinfection is
switched on, a mixer must be installed.
NOTICE: Risk of damage to the floor!
▶ Radiant floor heating must be installed
only as a heating zone with mixer and an
additional temperature switch to protect
the floor from overheating, by delivering
too hot supply water.
6 720 811 156-02.1O
B
U
S
B
U
S
i
i
1
2
3
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Installation | 7
2.4 Technical Data
Fig. 4 Dimensions
2.5 Accessories
Function modules of the EMS control system:
• CZM100: Zone module for up to three heating zones
• Outdoor temperature sensor for outdoor reset control
types or WWSD (Warm Weather Shut Down) and frost
protection.
Only compatible with the following products:
• CRC100 and CZM100
Applicability of these instructions to EMS-capable modules
These instructions also apply to the user interface when used in
conjunction with CZM100 (accessory).
2.6 Applicability of the technical documentation
All information related to BUS systems and heating controllers
contained in the technical documentation of e.g. heat sources
applies also to the present user interface.
3 Installation
The detailed system schematics for mounting the hydraulic
assemblies and the associated control devices can be found in
the installation manual of CZM100.
3.1 Installation location
The room in your home where the controller is installed is the
reference room. If room temperature-dependent control is
active, the room temperature in this room serves as the
reference variable for the entire system. If the outdoor reset
control is enabled to factor in the room temperature, the room
temperature functions as an additional reference variable.
The control quality depends on the installation location.
6 720 811 153-08.1O
3 3/4"
95 mm
3 3/4"
95 mm
63/64"
25 mm
1 5/16"
33 mm
Dimensions (W × H × D) 3 3/4" × 3 3/4" × 1 5/16"
(95 × 95 × 33 mm)
( Fig. 4)
Rated voltage 8 ... 16 V DC
Nominal current 6 mA
BUS interface EMS (2-wire BUS)
Control range 41 ... 86 °F (5 ... 30 °C)
Permissible ambient
temperature
32 ... 122 °F (0 ... 50 °C)
Protection class III
Protection IP20
Table 2 Technical Data
DANGER: Risk of electric shock!
▶ Before installing this product:
Disconnect the heat source and all other
BUS users from the line voltage across all
poles.
This user interface is intended only for wallmounted installation. Do not install in the heat
source.
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8 | Installation
• The installation location (= reference room) must be
suitable for controlling the zone ( Fig. 5, Page 8).
• The user interface must be installed on an interior wall.
• Do not place obstructions within 2 1/2' (0.75 m) below
CRC200.
Fig. 5 Installation location in the reference room
If there is no suitable reference room, we
recommend changing the settings to a purely
outdoor temperature dependent control.
6 720 811 153-03.1O
≥ 4'
(≥ 1.2 m)
2'
(0.6 m)
≥ 3 1/4'
(≥ 1 m)
2 1/2'
(≥ 0.75 m)
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Installation | 9
3.2 Installation
Fig. 6 Mounting the base
3.3 Power connection
Power is supplied to the user interface via EMS BUS.
Connections are not polarity specific.
Maximum total length of the BUS connections with AWG18
(0.75 mm
2
): 492 ft. (150 m)
▶ If several BUS users are installed, maintain a minimum
clearance of 4" (100 mm) between the individual BUS
users.
▶ If several BUS users are installed, connect the BUS users in
series or in a star pattern.
▶ To avoid inductive interference: Make sure all low-voltage
cables are routed separately from line voltage cables (min.
clearance 4" / 100 mm).
▶ In the case of outside inductive effects, use shielded cable
and ground one end of the shield. Do not connect the shield
to the connecting terminal for the ground conductor in the
module; use the building ground instead, e.g. unused
grounded terminal or water pipe.
▶ Establish a BUS connection to the heat source.
Fig. 7 Connection of the user interface to a heat source
1) Terminal identification:
On heat sources with an EMS BUS system terminals
are: BUS or BB
The outdoor temperature sensor (accessory) needs to be
connected to the heat source.
▶ Observe the instructions for the heat source when
connecting the electrical supply.
When sensor leads are extended, apply the following lead
cross-sections:
• Up to 66 ft. (20 m) with AWG18 (0.75 mm
2
)
• 66 ft. (20 m) to 330 ft. (100 m) with AWG16 (1.50 mm
2
).
The installation surface on the wall must be flat.
▶ Install the base on a wall. ( Fig. 6).
If the maximum total length of the BUS
connections between all BUS users is
exceeded or the BUS system has a ring
structure, commissioning of the system is not
possible.
6 720 811 156-05.1O
18-2 AWG (2x 1mm²)
1/4"
(6.35 mm)
1/4"
(6.35 mm)
9/64"
(3.5 mm)
CRC200
6 720 811 156-06.1O
BUS/
BB
1)
B
U
S
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10 | Installation
3.4 Attaching or removing the user interface
Attaching the user interface
1. Attach the user interface at the top.
2. Snap the bottom of the user interface into the base.
Fig. 8 Attaching the user interface
Removing the user interface
1. Push the knob on the underside of the base.
2. Pull the bottom of the user interface forwards.
3. Remove the user interface by lifting upward.
Fig. 9 Removing the user interface
6 720 809 984-06.1O
1.
1.
2.
6 720 809 984-07.1O
3.
1.
2.
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