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7 Technical
Relay outputs:
8 control relays - up to 8 heating zones, (4 flue fan relays – Reserved – Do Not
Use).
Relays switch out 24Vac to connection terminals (wet contact).
1 error relay: connected as voltage-free contact to connection terminals
Relay load: max. 6.3A 24V 50/60Hz (inductive)
Inputs: Temperature
sensors: 2-wire connection
SR
- black-bulb IR/Ambient temperature sensor (NTC)
OAS
- outside ambient temperature sensor (NTC)
Contact inputs: potential free contacts, closed if not used
Connected appliances must meet low voltage Class 2 requirements
Alarm contacts
Remote
: Forced day mode operation or Signal input fault contacts
(selectable)
Set values:
The values of each zone can be modified separately:
Type: Day mode:
+3...+35 °C / 37...95 ºF
Night mode:
+3...+35 °C / 37...95 ºF
Freeze Protection mode: +3...+20 °C / 37...68 ºF
Holiday program: 8 programmable holiday periods (calendar dates)
Application:
Luminous and tube type gas-fired radiant heaters; programmable
Hysteresis : 0.2 … 2.0 °C / 0.4 ... 3.6 ºF
Integration band: (two-stage operation only): 0.5 …3.0 °C / 1.0...5.5 ºF
Integration time: (two-stage-heater operation only): 10 ... 99 minutes
Sensor correction: -9.9…+10.0 °C / -9.9...+10.0 ºF
Exhaust fan delay (run on) time: 0 …. 60 minutes
Clock, calendar: Real-time clock with calendar
Clock power: 1.5 V AA battery, durability: ~ 3 years
automatic summer / winter time correction (+/- 1 hour):
can be deactivated
correction to summer time: second Sunday in March
correction to winter time: first Sunday in November
Time programs: Independent weekly program in each zone:
19 switching points
Saved on internal EEPROM-memory
Power supply:
24V+-20% 50/60Hz (terminals L
24V
, Com) P
max
(controller): 10 VA
Must use Class 2 rated power supply
Fuse:
F1 5x20mm 6.3 A (F) standard
Connections:
Screw terminals, wire section max.: 11 AWG
Safety standards: UL 60950
Operating temperature: 0...50 °C / 32...122 ºF
Storage temperature: -10...60 °C / 14...140 ºF
Protection:
NEMA13 / IP65
Housing:
Plastic housing with transparent door (key lock); waterproof;
UV-resistant
Dimensions:
10-3/4’’ x 8-5/8’’ x 5-3/8’’ (275 x 220 x 140 mm)
