DUCTABLE AIR-COOLED LIQUID CHILLERS
30RBSY 039-160
Remote operating mode with
dry contacts (standard)
A simple two-wire communication bus between the
RS485 port of the AquaSnap and the Carrier Comfort
Network offers multiple remote control, monitoring and
diagnostic possibilities. Carrier offers a vast choice of
control products, specially designed to control, manage
and supervise the operation of an air conditioning system.
Please consult your Carrier representative for more
information on these products.
-- Start/stop: Opening of this contact will shut down
the unit
-- Dual set point: Closing of this contact activates a
second set point (example: unoccupied mode)
-- Water pump 1 and 2 control (contacts supplied
with the hydronic module option)*: These outputs
control the contactors of one or two water heat
exchanger water pumps
-- Alarm indication: this volt-free contact indicates
the presence of a major fault that has led to the
shut-down of one or two refrigerant circuits
-- Demand limit 1 and 2: Losing of these contacts
limits the maximum unit capacity to three
predefined values
-- User safety: This contact can be used for any
custo mer safety loop, closing of the contact
generates a specific alarm
COOLING
Carrier Comfort Network (CCN)
operating mode
Operating limits
Operating range
Minimum Maximum* Maximum dual pump**
30RBSY
30RBSY
Low
pressure***
High
pressure***
Evaporator
7.5*
30
039
0.9
3.0
2.9
3.4
Leaving water temperature during operation °C
5**
20
045
0.9
3.4
3.2
3.8
Entering/leaving water temperature difference K
3
10
050
0.9
3.7
3.3
4.0
Condenser
060
0.9
4.2
3.7
4.4
Entering air temperature, full load***
°C
-20
46
070
1.0
5.0
4.1
5.0
Entering air temperature, part load***
°C
-20
48
080
1.2
5.5
4.4
5.2
Hydronic module****
090
1.3
6.8
5.1
6.2
Entering air temperature
100
1.5
7.7
6.3
6.5
Kit without pump
°C
-20
-
120
1.7
8.5
6.5
8.0
Kit with pump (option 116x)
°C
-10
-
140
2.0
10.6
7.9
8.7
°C
-20
-
160
2.3
11.2
8.2
8.9
Kit with pump (option 116x) and frost
protection option to -20°C (option 42)
*
**
***
Maximum flow rate at a pressure drop of 100 kPa in the plate heat exchanger
(unit without hydronic module).
Maximum flow rate at an available pressure of 20 kPa (unit with low-pressure hydronic
module) or 50 kPa (high-pressure module).
Maximum flow rate with single pump is 2 to 4% higher, depending on the size.
55
Entering water temperature at start-up
Minimum Maximum
°C
HEATING HEATING
Flow rate, l/s
Note: Do not exceed the maximum operating temperature.
*
**
For entering water temperatures below 7.5°C at start-up, contact Carrier.
For low-temperature applications, where the leaving water temperature is below 5°C, a
frost protection solution must be used.
*** For transport and storage of the 30RBSY units the minimum and maximum allowable
temperatures are -20°C and +48°C. It is recommended that these temperatures are
used for transport by container.
**** Defines the frost-free temperature of the hydronic components for use without glycol.
45
Outside air temperature, °C
35
25
15
5
-5
-15
30RBSY
0
5
10
15
20
CONTROLS
-25
25
Evaporator leaving water temperature, °C
Full load
Minimum load
Note: This operating range applies up top 130 Pa static pressure without suction air
duct for sizes 070-080 and 140-160, and up to 240 Pa for all other sizes.
C
A
AIR TREATMENT
Evaporator water flow rate
R
R
I
E
R
2
0
1
6
/
2
0
1
7
117