29
- altitude: ≤ 2000 m (see note for table 9.2 - Electrical data, hydronic module)
-
presence of hard solids, class 4S2 (no significant dust present)
-
presence of corrosive and polluting substances, class 4C2 (negligible)
2. Power supply frequency variation: ± 2 Hz.
3. The neutral (N) conductor must not be connected directly to the unit (if necessary
use a transformer).
4. Overcurrent protection of the power supply conductors is not provided with the
unit.
5. The factory-installed disconnect switch
(option 70)
is of a type suitable for power
interruption in accordance with EN 60947.
6. The units are designed for simplified connection on TN(s) networks (IEC 60364).
For IT networks provide a local earth and consult competent local organisations to
complete the electrical installation. Units delivered with speed drive
(options 28 and 116V/W) are not compatible with IT network.
7. Derived currents: If protection by monitoring of derived currents is necessary to
ensure the safety of the installation, the control of the cut-out value must take the
presence of leak currents into consideration that result from the use of frequency
converters in the unit. A value of at least 150 mA is recommended to control
differential protection devices.
Caution: If particular aspects of an actual installation do not conform to the
conditions described above, or if there are other conditions which should be
considered, always contact your local Carrier representative.
*
The absence of main power disconnect switch on standard machines is an exception
that must be taken in account at field installation level.
** The required protection level for this class is IP43BW (according to reference
document IEC 60529). All 30RQS/RQSY units
fulfil this protection condition:
-
Closed electrical box is IP44CW
-
Open electrical box (when accessing to interface) is IPxxB
Electrical data and operating conditions notes:
• 30RQS/RQSY 039-160 units have a single power connection point located
immediately upstream of the field power connections.
• The control box includes the following standard features:
-
Starter and motor protection devices for each compressor, the fans and the
pump,
-
The control devices.
-
A main disconnect switch can be installed within the box with the option 70.
•
Field connections:
All connections to the system and the electrical installations must be in full
accordance with all applicable local codes.
• The Carrier 30RQS/RQSY units are designed and built to ensure conformance
with these codes. The recommendations of European standard EN 60204-1 (machine
safety - electrical machine components - part 1: general regulations - corresponds
to IEC 60204-1) are specifically taken into account, when designing the electrical
equipment*.
•
An auxiliary contactor is available with the QF breaker allowing a safety channel installation
to ensure a feedback output about heater and board power supply status and then
prevent evaporator from frosting when heaters and boards are off.
NOTES:
• Generally the recommendations of IEC 60364 are accepted as compliance with
the requirements of the installation directives. Conformance with EN 60204-1 is
the best means of ensuring compliance with the Machines Directive § 1.5.1.
• Annex B of EN 60204-1 describes the electrical characteristics used for the
operation of the machines.
• The operating environment for the 30RQS/RQSY units is specified below:
1. Environment** - Environment as classified in EN 60721 (corresponds to IEC
60721):
-
outdoor installation**
-
ambient temperature range: -20°C to +48°C, class 4K4H
10.2 - Operating range, standard units - heating mode
Condenser
Minimum Maximum
Entering water temperature at start-up
°C
8
45
Leaving water temperature during operation
°C
25
55
Entering/leaving water temperature difference
K
3
10
Evaporator
Minimum Maximum
Air temperature
°C
-15
40
Hydronic module*
Entering air temperature
Kit without pump
°C
-20
-
Kit with pump (option 116x)
°C
0
-
Kit with (option 116x) et frost protection option
to -20°C (option 42)
°C
-20
-
Kit with buffer tank (option 307)
°C
0
-
Kit with buffer tank (option 307) and frost
protection option to -20°C (option 42B)
°C
-20
-
Note:
Do not exceed the maximum operating temperature.
* Defines the frost-free temperature of the hydronic components for use without
glycol.
20
25
30
35
40
45
50
55
60
-20
-10
0
10
20
30
40
50
Entering air temperature, °C
L
ea
ving w
ater temper
atur
e
, °C
Full load
Minimum load
30RQS/RQSY - heating mode
10 - APPLICATION DATA
10.1 - Operating range, standard units - cooling mode
Evaporator
Minimum
Maximum
Entering water temperature at start-up
°C
7.5*
30
Leaving water temperature during operation
°C
5**
20
Entering/leaving water temperature difference
K
3
10
Condenser
Minimum
Maximum
Entering air temperature 30RQS***
°C
-10
48
Entering air temperature 30RQSY***
°C
-20
48
Hydronic module****
Entering air temperature
Kit without pump
°C
-20
-
Kit with pump (option 116x)
°C
0
-
Kit with (option 116x) et frost protection option
to -20°C (option 42)
°C
-20
-
Kit with buffer tank (option 307)
°C
0
-
Kit with buffer tank (option 307) and frost
protection option to -20°C (option 42B)
°C
-20
-
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 30RQS/30RQSY 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.
-20
-10
0
10
20
30
40
50
0
5
10
15
20
25
30RQS
30RQSY
Evaporator leaving water temperature, °C
Entering air temper
atur
e
, °C
Full load
Minimum load
30RQS/RQSY - cooling mode
NOTE: This operating range applies up top 130 Pa static
pressure without suction air duct for sizes 060, 070 and 078
and 140-160, and up to 240 Pa for all other sizes.
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