Dhw Settings Menu - Weil-McLain ECO 70 Manual

TM -
G
AS FIRED WATER BOILER
HEATING SETTINGS menu
SUPPLY MAX
SUPPLY MIN
OD RESET MAX
OD RESET MIN
Modulate On Diff
Modulate Off Diff
Min On Time minutes
minutes
Boost Interval
seconds
Prepump Time: ### SEC
Postpump Time: ### SEC seconds
MAXIMUM BLOWER RPM
110
155
MINIMUM BLOWER RPM
70
110
155

DHW SETTINGS menu

Figure 79, page 71 for setting values and
descriptions)
70
— Boiler Manual
menu (see Figure 71, page 66 for access information)
Units
Value Value
°F 60 190
°F 60 190
°F 50 100
°F –20 50
°F 2 10
°F 2 10
off 240
off 240
0 240
off 240
RPM 1100 4300
RPM 1400 5650
RPM 1300 5500
RPM 1100 4300
RPM 1400 5650
RPM 1300 5500
menu (see
(continued)
180
Required supply temp. at system design max. load
130
Minimum supply temp. for system
70 Outdoor temp. at which supply target reaches min.
0
Outdoor temp. at which supply target reaches max.
5
Boiler turns on if temperature drops below target minus differential on
5
Boiler shuts down if modulates past target plus differential off
Shortest time boiler will satisfy space heating system before
30
switching to DHW
When operating on ODR increases target 10°F when this time
off
expires until reaching MAX
20
Additional time to run circulators longer than standard 10 second time
30 Circulator run time after call for heat ends
4150 Boiler Model specific
5450 NOTE: Adjusting boiler firing rate will affect AFUE rating.
5300
1100 Boiler Model specific (low value adjusted automatically if HIGH
1400 ALTITUDE is selected in control setup)
1300 NOTE: Adjusting boiler firing rate will affect AFUE rating.
DHW SETTINGS
1. The DHW SETTINGS menus are for setting control operation
during DHW operation. The settings apply ONLY to
(see Figure 78).
2. If DHW is used, the settings for control operation during DHW calls
for heat are set under the DHW SETTINGS menus (see Figure 78).
DHW TEMPERATURES
operation. During DHW call for heat, the
zone output is disabled. This continues until the DHW
call ends or the DHW MAX ON TIME has elapsed.
1. The ECO control will regulate boiler firing to provide outlet water
at this temperature.
2. For most DHW applications, set this to 190°F. A lower supply
temperature can be used, but will reduce the indirect water heater
heating capacity.
— The ECO control gives priority to DHW
Part number 550-142-122/0513
Zone
heating