26
6 - APPLICATION DATA
6.1 - Operating range
30RQM/30RQP 160-520 units, cooling mode
Water heat exchanger
Minimum Maximum
Water inlet temperature at start-up
°C 8
(1)
40
Water outlet temperature during operation
°C
5
(2)
20
(3)
Leaving water temperature during operation
low-temperature brine solution option
°C -8
(8)
20
(3)
Air heat exchanger
Ambient operating temperature - 30RQM
°C
0
(4)(6)
48
(7)
Ambient operating temperature - 30RQM option 28
or 30RQP
°C
-20
(4)(6)
48
(7)
Available static pressure
Standard unit (for outdoor installation)
Pa 0
0
30RQM/30RQP 160-520 units, heating mode
Water heat exchanger
Minimum Maximum
Water inlet temperature at start-up
°C 8
(1)
50
Water outlet temperature during operation
°C
20
55
Air heat exchanger
Outdoor ambient operating temperature
°C
-10
(5)(6)
35
Available static pressure
Standard unit (for outdoor installation)
Pa 0
0
(1) For an application requiring start-up at less than 8°C, contact Carrier to select a unit using the Carrier
electronic catalogue.
(2) The use of antifreeze protection is required if the water outlet temperature is below 5°C
(3) For applications requiring operation above a water outlet temperature of 20°C, contact Carrier to
select a unit using the Carrier electronic catalogue.
(4) For operation at an ambient temperature of 0°C down to -20°C (cooling mode), the heat pump must
be a 30RQM unit equipped with option 28 "Winter operation" or a 30RQP unit.
(5) For operation at an ambient temperature of 0°C down to -10°C (heating mode), the heat pump must
be equipped with option 252 "Coil defrost heater"
(6) For operation at an ambient temperature below 0°C (cooling mode and heating mode), the unit must
either be equipped with the water heat exchanger frost protection option (for units without hydraulic
module option) or the water heat exchanger and hydraulic module frost protection option (for units
with hydraulic module option) or the water loop must be protected against frost by the installer, using
an anti-freeze solution.
(7) The maximun ambiant temperature allowed for mahines equipped with option 231 is +40°C
(8) Operation with low temperature brine for 30RQP 180/230/270/310 only
Maximum ambient temperature: in case of 30RQM/30RQP units storage and transport, minimum
and maximum ambient temperatures to respect are -20°C and +52°C. These temperature limits
shall be considered in case of container shipment.
30RQM/30RQP 160-520 units - Cooling mode
-30
-20
-10
0
10
20
30
40
50
-10
-5
0
5
10
15
20
Option 15LS
30
R
Q
M
o
pt
io
n
28
o
u
30
R
Q
P
30RQP 180/230/270/310 seulement
Option 231
Inlet air temper
atur
e, °C
Evaporator water outlet temperature, °C
30RQM/30RQP 160-520 units - Heating mode
-15
-10
-5
0
5
10
15
20
25
30
35
40
15
20
25
30
35
40
45
50
55
60
potential load shedding
during the fr
ost cy
cle
Inlet air temper
atur
e, °C
Outlet water temperature, °C
Notes
1
Evaporator ∆T = 3K
2
The unit must be equipped with the water heat exchanger frost protection option (for units without
hydraulic module option) or the water heat exchanger and hydraulic module frost protection
option (for units with hydraulic module option) or the water loop must be protected against frost
using an anti-freeze solution for outdoor air temperatures below 0°C
3
Operating ranges are guidelines only. The operating range must be checked with the selection
software
Key
Operating range at full load, 30RQM unit or 30RQP unit
Extended operating range in cooling mode: 30RQM unit, option 28 "Winter operation" down
to outdoor temperatures of -20°C or 30RQP unit. The water heat exchanger must be protected
against frost (see note 2).
Operating range at part load for 30RQM/30RQP 310 unit. Other sizes operate at full load.
Potential offl oading during the de-frost cycle depending on the humidity conditions. Refer to
the manufacturer's electronic catalogue.
Low temperature brine solution option
Partial charge for low-temperature brine solution option
CAUTION: 30RQP units, option 28 and options 116V and
116W.
If the air temperature is below -10°C and the unit has been
deenergised for more than 4 hours, it is necessary to wait two
hours after the unit has been switched on again to allow the
variable drive to warm up.
6.2 - Minimum water fl ow (units without hydraulic
module)
The minimum water fl ow is shown in the table on the next page.
If the system fl ow is less than the unit's minimum fl ow, the
exchanger fl ow can be recirculated, as shown in the diagram.
For minimum water fl ow
1 Water heat exchanger
2 Recirculation
Option 15LS
Option 231
30R
QM option 28 or 30R
QP
30RQP 180/230/270/310 only