Honeywell S4965 Series, Product Handbook, Page: 5 / 16

5 EN2R-9053 0408R11-NE
SPECIFICATIONS
Models
Basically there is one PCB for a number of applications.
Depending on which components are mounted different
applications can be covered.
Supply voltage
230 Vac -15% +10%
50Hz ± 2%
Power consumption
5 VA
Humidity
90% RH max. at 40°C (non condensing)
Ambient temperature
-
20 ... 60°C
Electrical rating
fusing: external: 2 A slow, sand filled
optional integral: 2A slow, sand filled
230V output 1 (ac fan or lpg valve):
230 Vac, 0.8 A max, cos
ϕ ≤
0.6
230V output 2 (pump or aux):
230 Vac, 0.8 A max, cos
ϕ ≤
0.6
230V output 3 (3 way or aux):
230 Vac, 0.8 A max, cos
ϕ ≤
0.6
230V output 4 (3 way or aux):
230 Vac, 0.8 A max, cos
ϕ ≤
0.6
Total output (1..4) : 2A
Room thermostat input:
230 Vac, 1 mA or by communication
Gas valve output: :
230Vrac, 50mA
Auxilary input:
12 Vdc, 100 kOhm
Air pressure switch input:
12 Vdc, 100 kOhm
DC fan control output:
5 V 10 mA
High limit switch input:
5 Vdc, 100 kOhm
Water pressure switch input:
12 Vdc, 100 kOhm
Flow sensor input and output:
12 ± 4Vdc, 10 mA max supply open collector input
Alarm output:
12 Vdc, 5 mA or by communication
OpenTherm output and communication:
In accordance with OpenTherm standard
Sensors inputs (total maximum 6):
Standard NTC T7335 10k-A material
(see survey S-T7335)
High limit dual sensor 10 kOhm NTC *
(Sensor type : T7336B 1001)
* this sensor needs special input
MicroCom Communication input and output:
input: logic “0” < 0.8 Vdc
logic “1” > 2 , < 24 Vdc (10 kOhm)
output: open collector 24 V and 10 mA max
DC output: depending on OS number:
9Vrac, 5mA max
or 24Vdc, 50mA and 7V, 250mA
Electrical PCB connectors
High voltage spark: 2.8 x 0.5 mm faston
or 4 mm round.
Flame sensing: 4.8 x 0.8 mm faston
Mains connector: 10 pole TYCO, AMP-duac
Low voltage connectors: 16 or 18 and 6 pole TYCO,
MATE-N-LOCK
Flame sensing
Factory parameter setting:
minimum flame current settable between 0.5 and 5
µ
A
Response time ON: < 0.2 s
Response time OFF: < 1 s
Ignition
Spark voltage: 15 or 20 kV @ 30pF
Spark frequency: 15 Hz
Spark pulse energy: 4 or 15
µ
As
Timing
Pre purge time: 0 ... 51 s
Waiting time (T
w
): 0 ... 51 s
Pre ignition time: 0 ... 51 s
Safety time (T
s
): 0 ... 51 s
Number of retrials: 0 ... 255
Flame failure response time: 1 s
Stabilisation time: 0 ... 51 s
Post ignition/stabilisation time: 0 ... 51 s
Post purge time:
0 ... 51 s
Pump over run time: 0 ... 600 s
Anti cycling time: 0 ... 255 s
Timing tolerance ± 5%
Application
Atmospheric combustion Premix combustion
Normal Combustion feedback
(LoCon)
Normal
(Pneumatic
gas/air)
SQUARE
(Electronic gas/air
or Gas addaptive)
Open flue Fan assistant Open flue Fan assistant
On /Off
Electronics S4965A S4965C ------------- ------------- S4965V -------------
Gasvalve VK4105A2/C2 VK4105A2/C2 ------------- ------------- VK4115V2 -------------
Modulation
Electronics S4965AM S4965CM S4965AL S4965CL S4965V S4965S
Gasvalve VK4105G1 VK4105G1 VK4105G2 VK4105G2 VK4115V2 VK4105G3