Danfoss ERC 21 Series User Manual

Figure 16: Mounting
Danfoss 80G8391
Figure 17: Dismounting
Danfoss 80G8392
Product specication
Technical specication
Table 38: Technical specication
Features
Description
Purpose of control
Operating temperature sensing control suitable for incorporation into commercial air-conditioning and refrigeration appli-
cations
Construction of control
Incorporated control
Power supply
115 V AC / 230 V AC 50/60 Hz, galvanic isolated low voltage regulated power supply
Rated power
Less than 0.7 W
Inputs
Sensor inputs, Digital inputs, Programming key
Connected to SELV limited energy <15 W
Allowed sensor types
NTC 5000 Ohm at 25 °C, (Beta value=3980 at 25/100 °C - EKS 211)
NTC 10000 Ohm at 25 °C, (Beta value=3435 at 25/85 °C - EKS 221)
PTC 990 Ohm at 25 °C, (EKS 111)
Pt1000, (AKS 11, AKS 12, AKS 21)
Sensors included in kit Solution
NTC 10000 Ohm at 25 °C, cable length: 1.5 m
Accuracy
Measuring range:
-40 – 105 °C (-40 – 221 °F)
Controller accuracy:
±1 K below -35 °C, ±0.5 K between -35 – 25 °C
±1 K above 25 °C
Type of action
1B (relay)
Output
DO1 - Relay 1:
16 A, 16 (16) A, EN 60730-1
10 FLA / 60 LRA at 230 V, UL60730-1
16 FLA / 72 LRA at 115 V, UL60730-1
DO2 - Relay 2:
8 A, 2 FLA / 12 LRA, UL60730-1
8 A, 2 (2 A), EN60730-1
DO3 - Relay 3:
3 A, 2 FLA / 12 LRA, UL60730-1
3 A, 2 (2 A), EN60730-1
DO4 - Relay 4:
2 A
Display
LED display, 3 digits, decimal point and multi-function icons, °C + °F scale
Operating conditions
-10 – +55 °C (14 – 131 °F), 90% Rh
Storage conditions
-40 – +70 °C (-40 – +158 °F), 90% Rh
Protection
Front: IP65 (Gasket integrated)
Rear: IP00
Environmental
Pollution degree II, non-condensing
Overvoltage category
II - 230 V supply version - (ENEC, UL recognized)
III - 115 V supply version - (UL recognized)
Resistance to heat and re
Category D (UL94-V0)
Temperature for ball pressure test statement According to Annex G (EN 60730-1)
EMC category
Category I
Mounting
© Danfoss | Climate Solutions | 2023.01 BC194286421698en-000901 | 31
Electronic refrigeration control, type ERC 21X

Danfoss ERC 21 Series Specifications

General

Brand	Danfoss
Model	ERC 21 Series
Category	Controller
Language	English