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Mascot ST Tankless Water Heater
4.18 DIP Switches
There is one set of DIP switches.
DIP switches 6 and 7 must be set to OFF when operating the water heater normally.
1-3
OVER-RIDE Inlet DHW Flow Limiter
4
5
6
7
Table 15. Dip Switches
OFF
Normal Operation
Normal Operation
LP Propane
Do Not Touch
Shown in it's actual
Do Not Touch
orientation in the unit.
Do Not Touch
Maximum flame detecting voltage
5 to OFF
for LP Propane .
Pre-purge time (Tp)
Safety Time (igniting time) (Ts)
Igniting interval time
Post-purge time (Tip)
Over-heating 1,2,3 protection detection time
Temperature sensor fault detection time
Nr. of trial for ignition (Ntl)
DHW water SET temperature range
DHW water OFF temperature
DHW water ON temperature
DHW water ON minimum water flow
DHW water OFF minimum water flow
Table 14. System Control Settings
DIP Switch Function
Machine power
Propane or Natural Gas
Max.
Min.
#
7
6
5
4
3
2
1
7 ON and 6 OFF
OFF
ON
Do NOT Move.
OFF
ON
LP
NG
Normal
MAX Fire
Normal
MIN Fire
Document 4286
2.4V
Maximum 10s, minimum 1s
)
3.5s
<10s
180s
<1s
<2s
10
35°C~ maximum DHW setpoint temperature(default: 60°C)
DHW target temperature + DHW differential temperature(15°C)
Below DHW target temperature +3°C
2ℓ(12Hz)
1.5ℓ(8Hz)
Page 35
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