OTG SLIM SM

Pressurised electric water heaters

Mechanical control of the conventional OTG SLIM water heaters have been replaced with a modern electronic control unit . Modern control unit with LED indicators and water temperature display unit, and the added EcoSmart feature additionally highlight the already modern and visually appealing design with rounded corners, and allow reaching heater efficiency in compliance with the Environmental Directive.

ADVANTAGES:

  • Supply of several outlets
  • Vertical wall mounting
  • High-quality insulation for lower heat losses
  • Electric immersion heating element
  • Electronic control unit
  • Heater on/off and temperature adjustment key
  • Temperature adjustable from 10 °C to 75 °C
  • 7 LED temperature indicator
  • Dry firing protection
  • Overheating protection
  • Anti-Legionella function
  • Heating element operation indicator
  • Error/fault indicator
  • Working pressure 6 to 9 bar
  • Anti-corrosion tank protection with enamel and a magnesium anode
  • Available volumes/capacities: 30 l, 50 l, 80 l, 100 l, 120 l

Properties

MODEL OTGS 30 SM OTGS 50 SM OTGS 80 SM OTGS 100 SM OTGS 120 SM
Declared load profile S M M L L
Energy efficiency class (1) B B B C C
Energy efficiency ƞwh (1) (%) 37,2 40,1 39,6 41,3 40,0
AEC annual electricity consumption (1) (kWh) 496 1282 1296 2479 2554
Daily electricity consumption Qelec (2) (kWh) 2,864 6,870 6,956 13,003 13,547
Thermostat temperature settings "eco" "eco" "eco" "eco" "eco"
Specific precautions (assembly, install, maintain) When connected as pressurised, use of safety valve is mandatory When connected as pressurised, use of safety valve is mandatory When connected as pressurised, use of safety valve is mandatory When connected as pressurised, use of safety valve is mandatory When connected as pressurised, use of safety valve is mandatory
* Value of smart 1 1 1 1 1
Weekly electricity consumption with smart control Qelec, week, smart (kWh) 13,550 24,198 25,564 49,740 50,340
Weekly electricity consumption without smart control Qelec, week (kWh) 16,215 28,501 30,049 57,832 58,689
Storage volume V (l) 29,1 49,1 78,8 98,1 118,9
Mixed water at 40°C V40 (2) (l) 68 121 142 177  
PURPOSE          
One or more outlets + + + + +
Vertical wall mounting + + + + +
DIMENSIONS OF CONNECTIONS          
Height (mm) 510 690 950 1125 1300
Width (mm) 420 420 420 420 420
Depth (mm) 445 445 445 445 445
Connections to the supply network G 1/2 G 1/2 G 1/2 G 1/2 G 1/2
Net/gross weight/with water (kg) 19/21/49 24/26/74 31/33/111 36/38/136 41/43/161
TECHNICAL CHARACTERISTICS          
Working pressure (Mpa(bar)) 0,6(6)/0,9(9) 0,6(6)/0,9(9) 0,6(6)/0,9(9) 0,6(6)/0,9(9) 0,6(6)/0,9(9)
Enamelled steel tank + + + + +
Protective magnesium anode + + + + +
Electronic control unit + + + + +
On/Off key + + + + +
Temperature range adjustment up to 75 °C + + + + +
LED thermometer + + + + +
Overheating protection + + + + +
Dry fire protection + + + + +
Setting to “freeze prevention” + + + + +
Self-learning function + + + + +
Indication of heating element operation + + + + +
Indication of thermostat failure + + + + +
Indication of over heating + + + + +
Smart operation indicator + + + + +
Degree of protection IP 24 IP 24 IP 24 IP 24 IP 24
ELECTRICAL CONNECTIONS          
Rated power output (W) 2000 2000 2000 2000 2000
Voltage 230 V ~ + + + + +
Nominal current A 8,7 8,7 8,7 8,7 8,7
FUNCTIONAL CHARACTERISTICS          
Thermal losses at 65° (3) (kWh/24) 0,69 0,94 1,3 1,54 1,79
Heating time from 10 to 65°C 0h 59min 1h 38min 2h 37min 3h 16min 3h 55min
TRASNPORTATION DATA          
Packaging dimensions (mm) 480x490x630 480x490x810 480x490x1070 480x490x1245 480x490x1420
(1) EU Regulation 812/2013; EN 50440
(2) EN 50440
(3) Measured at 20°C ambient temperatur e and 65°C water temperatur e in the heater (SIST EN 60379:2005 standar d).
* information on water heating ener gy efficiency and annual electricity consumption r elate to enabled smart contr ol settings only
MODEL OTGS 30 SM OTGS 50 SM OTGS 80 SM OTGS 100 SM OTGS 120 SM
A (mm) 510 690 950 1125 1300
B (mm) 310 470 735 900 900
C (mm) 235 250 245 225 430
E (mm) 100 100 100 100 100
F (mm) 100 100 100 100 100
G (mm) 350 350 350 350 350