User Manual for PuraLev
®
2000SU
www.levitronix.com
PL-4034-00, Rev02, DCO# 20-144
18
3.4.2 Controller Temperature
Depending on the ambient temperature and the placement of the controller additional cooling may be
required (see
). To improve cooling of the controller, place the device into a moving air stream. If
the controller is mounted in a compact area or adjacent to additional heat sources (e.g. a 2
nd
controller)
ensure that there is sufficient ventilation.
Figure 20: Temperature curves of controller LPC-2000 vs. flow and speed
(for pumping with pump head DCP-2000.2 and motors LPM-2000.x)
The above curves are measurements of the controller temperature at 25
°C
how to calculate the controller temperature for at other ambient temperatures based on this curve.
𝑇
𝐶
(
𝑇
𝐴
) ≈ 𝑇
𝐶
(𝑇
𝐴
= 25°𝐶)
⏟
𝑠𝑒𝑒 𝐹𝑖𝑔𝑢𝑟𝑒 20
+ (𝑇
𝐴
− 25°𝐶)
𝑇
𝐶
= 𝐶𝑜𝑛𝑡𝑟𝑜𝑙𝑙𝑒𝑟 𝑡𝑒𝑚𝑝𝑒𝑟𝑎𝑡𝑢𝑟𝑒
𝑇
𝐴
= 𝐴𝑚𝑏𝑖𝑒𝑛𝑡 𝑡𝑒𝑚𝑝𝑒𝑟𝑎𝑡𝑢𝑟𝑒
(Eq. 2)
77
87
97
107
117
127
137
147
157
167
0
5
10
15
20
25
30
35
25
30
35
40
45
50
55
60
65
70
75
0
20
40
60
80
100
120
140
[°F]
[gpm]
[°C]
[lpm]
Ambient temp. = 25
C
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
4000 rpm
Absolute Temperature Limit
8000 rpm
