Carrier 30RB-170R Installation, Operation And Maintenance Instructions page 67

12 - OPTIONS
Total recovery (pressure drop curves for the plate
heat exchangers)
100
10
1
1
Heat exchanger water flow rate (l/s)
B 30RBP 170R
C 30RBP 190R-210R
D 30RBP 230R-270R
12.2.4.4 - Operating limits
30RBP 170-950 units
Total recovery exchanger
Water inlet temperature at start-up
Water outlet temperature during operation °C
Water inlet temperature on shut-down
Note: Do not exceed the maximum operating temperature.
(1) On start-up, the water inlet temperature must not be below 25 °C. For installations
with a lower temperature, a three-way valve is necessary
B C D E F
G
10
E 30RBP 310R-410R
F 30RBP 450R-550R
G 30RBP 610R-950R
Minimum Maximum
°C 25 60
(1)
30 65
°C 3 70
Operating range in cooling mode
50
45
40
46
35
30
25
20
15
10
5
0
-5
-10
100
-15
-20
-25
-10 -5 0
Evaporator water outlet temperature (°C)
Key
Full load
Low temperature brine solution option
Part load for RBP720-870
Part load for RBP950
Notes
1. Evaporator ∆T = 5K.
2. The unit must be either equipped with antifreeze protection options for the water
type heat exchangers (evaporator and heat recovery) and the hydraulic module
(if used), or the water loop must be protected against freezing by the installer with
an antifreeze solution
3. These ranges are guidelines only. Verify the operating range with the electronic
catalogue.
Operating range in heat recovery mode
70
65
63
60
55
54
50
45
40
35
30
25
20
-10 -5
Evaporator water outlet temperature (°C)
Key
Full load
Low temperature brine solution option
Limitation to a part load of 50% below an ambient air temperature of -10 °C
Averaged values. Check the electronic catalogue for details of each unit
Limitation to a part load of 50 % below an ambient air temperature of 0 °C
Averaged values. Check the electronic catalogue for details of each unit
Notes
- Evaporator ∆T = 5K
- Condenser ∆T = 5K up to 30RBP550 and 8K for sizes 610R to 950R
- These operating ranges are guidelines only. Verify the operating range with the
electronic catalogue.
Part load for 30RBP
720-870
30 RBP 950
5 10 15 20 25
0 5 10 15 20 25
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