E93.1801EN171 HWB installation manual
68
Sensor availability
The following table shows the sensor availability for all DHW control modes. Sensors not mentioned in the table
are optionally available for other functions
DHW Mode
0 N.A. 1 N.A.
2
3 N.A.
4
5 N.A.
6 N.A.
7 N.A.
8 N.A.
T_Supply
O
M
M
O
M
O
M
M
M
T_Return
O
O
O
O
M
O
---
O
M
T_DHW
---
M
---
M
M
M
M
---
M
T_Outdoor
O
O
O
O
O
O
---
---
O
0-10 Volt
O
O
O
O
O
O
O
O
O
Water Flow DHW
O
O
O
O
O
M
O
M
M
RT Switch
O
O
M
O
O
O
O
O
O
M = Mandatory, O = Optional, --- = Disabled, N.A. = Not Available.
DHW mode 0 – Do not use
DHW mode 1 – Cascaded Water Heaters with bulb and system sensors.
DHW mode 2 – Do not use
DHW mode 3 – Do not use
DHW mode 4 – Stand Alone with immersion bulb sensor.
DHW mode 5 to 8 Do not use.
NTC sensor curve
All NTC sensors are according to this characteristic: NTC 10K@77 °F (25°C) B3977k 3%@140°F (60°C)
Temperature
°F (°C)
Resistance
(Ω)
Temperature
°F (°C)
Resistance
(Ω)
Temperature
°F (°C)
Resistance
(Ω)
Temperature
°F (°C)
Resistance
(Ω)
-40 (-40)
334275
50 (10)
19897
122 (50)
3599
212 (100)
674
-22 (-30)
176133
68 (20)
12493
140 (60)
2454
230 (110)
506
-4 (-20)
96761
77 (25)
10000
158 (70)
1748
248 (120)
384
14 (-10)
55218
86 (30)
8056
176 (80)
1252
266 (130)
296
32 (0)
32624
104 (40)
5324
194 (90)
912
284 (140)
230
Summary of Contents for HWB-299
Page 2: ......
Page 7: ...E93 1801EN171 HWB installation manual 7 1 SAFETY GUIDELINES...
Page 8: ...E93 1801EN171 HWB installation manual 8 CONSIGNES DE S CURIT...
Page 65: ...E93 1801EN171 HWB installation manual 65 Ladder Logic Diagram...
Page 66: ...E93 1801EN171 HWB installation manual 66 Electrical schematics...
Page 67: ...E93 1801EN171 HWB installation manual 67...
Page 119: ...E93 1801EN171 HWB installation manual 119 22 SPARE PARTS...
Page 120: ...E93 1801EN171 HWB installation manual 120 68 68 73...
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