Atag i28C Technical Guide

Parameter
number
Name Description Unit Range Default
Combi
2. BOILER PARAMETERS CONTINUED
2.7 Test & Utilities
2.7.0 Test mode Chimney sweeper function active 0 = OFF 1 = ON 0 - 1 0
2.7.1 Air purge Air purge function activation 0 - OFF 1 = ON 0 - 1 0
2.7.3 Force backup 0 = OFF 1 - ON 0 - 1 0
2.7.6 Force restore 1 = OFF 1 - ON 0 - 1 0
2.8 Reset Menu
2.8.0 Reset factory settings OK = Yes ESC = No
2.9 Others
2.9.0 GPI function Selected input for GPI function 0 - 2 1
0 = Burner block NO
1 = Burner block NC
2 = DHW Timer
2.9.1 Building Frost protection 0 = OFF 1 = ON 0 - 1 1
4. ZONE 1 PARAMETERS
4.0 Set Point
4.0.0 T Day Room temperature set point for day period °C 10 - 30 20
4.0.1 T Night Room temperature set point for night period °C 10 - 30 15
4.0.2 T set zone 1 Fixed T set for zone 1 °C Para 4.2.5 to Para 4.2.6 85HT/50LT
(used with Thermoregulation on type 0)
4.0.3 Zone Frost protection °C 2 - 15 5
4.1 S/W Changeover
4.1.0 S/W changeover Activation 0 - OFF 1 - ON (only active when outside temperature influence) 0 - 1 0
4.1.1 Threshold °C 0 - 30 25
4.1.2 Delay time Time before S/W changeover becomes active min 0 - 300 300
4.2 Zone 1 settings
4.2.0 Zone 1 system type 0 = low temperature system 1 = high temperature system 0 - 1 1
4.2.1 Zone 1 thermoregulation type 0 = Fixed flow temperature 0 - 4 0
1 = do not use
2 = Room temperature only
3 = Outdoor Temperature only (On/O Thermostat works)
4 = Room + Outdoor temperature (e-bus thermostat needed)
4.2.2 Slope Heating Line 0.2 - 1 for Low temperature installations 0.2 - 3.5 0.6 LT / 1.5 HT
1 - 3.5 for high temperature installations
4.2.3 Oset heating line O set heating line adjustable per °C °C -7 to +7 LT -14 to +14 HT 0
Low temperature system -7 to +7
High temperature system -14 to +14
4.2.5 Maximum Temperature Zone 1 Maximum Flow Temperature °C 20 - 50LT / 20 - 85HT 50 - LT / 80 - HT
4.2.6 Minimum Temperature Zone 1 minimum Flow Temperature °C 20 - 50LT / 20 - 85HT 20 - LT / 20 - HT
4.2.8 Quick night set back Do not change OFF - ON OFF
4.2.9 Heat Request Mode Do not change 0 - 2 0
4.3 Zone 1 Diagnostics
4.3.4 Heat Request Zone1 Is there a Heat demand from this zone 0 - OFF 1 - ON 0-1
4.7 Zone 1 Regulation parameters
4.7.0 Heating Type 0 = Floor Heating 0 - 5 1
1 = Radiators
2 = Floor heating (main) + Radiators
3 = Radiators (main) + Floor heating
4 = Convection
5 = Air heating
4.7.1 Room influence 0 = OFF 0 - 3 0
1 = Less
4.7 Zone 1 Regulation parameters (Continued on page opposite)
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Atag i28C Specifications

General

Brand	Atag
Model	i28C
Category	Boiler
Language	English