
69
User Interface Display
Explanation
DHW Settings
D H W
S E T T
I N G S
▲
D H W
m a x
.
p r
i o r
i
t y
t
i m e
3 0 m i n
Allowed Range: 1 to 60 Minutes
Default Setting: 30 Minutes
Maximum time boiler operates in DHW mode limited by DHW
Maximum Priority Time Setting.
Priority timer starts when both CH and DHW demand is
present. Boiler will switch from DHW back to CH operation after
Maximum Priority Time has elapsed.
CH demand then has priority until Maximum Priority Time has
elapsed.
Process repeats until either CH or DHW demand satisfi ed.
System Test
S Y S T E M
T E S T
S e
t
t
e s
t
p o w e r
O f
f
System test can be activated via installer menu for testing
system at fi xed power rates.
Boiler can be started without CH or DHW demand being
present. System Test has priority over any system demand
while test mode activated.
System test mode automatically ends after 30 minutes boiler
resumes normal operation.
The following modes are available:
Disabled
•
Low power - Burner starts. After ignition period has
•
fi nished the burner stays at low power
Ignition power - Burner starts. Stays at ignition power
•
High power - Burner starts. After ignition period has
•
fi nished burner stays at high power.
Note:
Before running system test modes, check if hydronic
•
system capable of dissipating heat.
Both heat exchanger and CH pumps are activated during
•
system test only.
During System Test Mode, boiler will run at fi xed power
•
rates until supply water temperature is 93°C/195°F
All other safety functions remain active while in System
•
Test Mode.
S Y S T E M
T E S T
B o
i
l
e
r
P u m p
O f
f
C H \ S y s
t
e m
P u m p
O f
f
D H W
P u m p
O f
f
APPENDIX A - CONTROL MODULE
Содержание OLSSC-075
Страница 45: ...45 13 TROUBLE SHOOTING...
Страница 52: ...52 14 WIRING DIAGRAM 14 1 Connection Diagram...
Страница 53: ...53 14 WIRING DIAGRAM 14 2 Schematic Diagram of Ladder Form...
Страница 70: ...70 NOTES...
Страница 71: ...71 Date Service Performed Company Name Tech Initials Company Address Phone...
Страница 72: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13504 4729 web site www ecrinternational com...