65
User Interface Display
Explanation
Boiler Con
fi guration
B O I
L E R
C O N F I G
▲
P u m p
M o d e
M O D E : 0
C H
o
r
C H & D H W
▼
Two pump modes are available:
Pump Mode = 0 ‘CH or CH&DHW’
1.
In this mode either the CH or DHW pump terminal is
•
energized depending on the type of demand (CH or DHW).
CH and DHW pumps are never energized at the same time.
•
In the case of a simultaneous call for both CH and DHW,
•
the energized pump depends on whether the boiler is
currently supplying the CH or DHW demand. Refer to DHW
Priority settings below.
This is typical of a hydronic system design with separate CH
•
and DHW Pumps.
Pump Mode = 4 ‘System Pump’
2.
In this mode only one external system pump is installed in
•
the hydronic system. This pump will energize independent
of the type of demand (CH or DHW).
Connect this pump to the CH/System Pump electrical
•
terminal block. See page
56 for diagram.
The DHW pump terminal does not function.
•
This is typical of a hydronic system design which utilizes
•
zone valves for all CH zones and an DHW indirect tank.
Note:
Pump Mode selection depends on electrical and
•
hydronic system design. Please refer to sections 5
and 8 for recommended hydronic piping and electrical
confi gurations.
Internal heat exchanger pump is energized anytime
•
demand exists regardless of Pump Mode setting or type
of demand (CH or DHW).
B O I
L E R
C O N F I G
▲
S E R V
I
C E
R E M I N D E R
S
t
a
t
u s
O n
R e m i
n d e r
3 6 5
d a y s
'Service Reminder’ feature allows the installer to enable or
disable a service reminder notifi cation on the User Interface at a
predefi ned interval .
Service reminder does not affect operation of boiler in any way.
It is only a reminder to End User that routine preventative
maintenance is required by qualifi ed service technician.
Allowed Range: 1 to 999 days
APPENDIX A - CONTROL MODULE
Summary of Contents for OLSSC-075
Page 45: ...45 13 TROUBLE SHOOTING...
Page 52: ...52 14 WIRING DIAGRAM 14 1 Connection Diagram...
Page 53: ...53 14 WIRING DIAGRAM 14 2 Schematic Diagram of Ladder Form...
Page 70: ...70 NOTES...
Page 71: ...71 Date Service Performed Company Name Tech Initials Company Address Phone...
Page 72: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13504 4729 web site www ecrinternational com...
