Drain pan heater
1
2
t°
AMS 10
AMS 10
PWB1-CNF
EB11
PWB1-CNTH
BT28 (tho-A)
CH
Thermostat
Open / Closed
Temperature
Open (off)
35 °C ±5
Closed (on)
25 °C ±5°
Drain pan heater
Off
On
Model
3°C
1°C
AMS 10-8
5°C
3°C
AMS 10-12/-16
DRAIN PAN HEATER FOR AMS 10-6
The drain pan heater is on when the following conditions
are met:
• Operating mode is heating
• The temperature Tho-R is -2.0° C or lower
• The outdoor temperature Tho-A is -0° C or lower
• Tho-A minus Tho-R is greater than or equal to the value
A, which varies depending on the outdoor temperat-
ure. The value A is calculated using the table below:
Value A
Current outdoor temperature
Tho-A
4.0
0°C
2.0
0° C to -5 °C
0.0
-5° C to -10 °C
-5.0
-10° C and lower
DRAIN PAN HEATER FOR AMS 10-8/-12/-16
The drain pan heater is on when the following conditions
are met:
• Operating mode is heating
• The compressor is running and 30 minutes have
passed since the compressor last stopped
• The outdoor temperature Tho-A (BT28) is -1° °C or
lower
Heating element
Power (W)
Voltage (V)
Model
110 W
230 V
AMS 10-6
100 W
230 V
AMS 10-8
120 W
230 V
AMS 10-12/-16
29
Chapter 4 | Description of functions
NIBE AMS10
