Weil-McLain Evergreen EVG 110, Manual

Page: 74 / 144

EXPRESS SETUP — Example B
2- or 3- Zone SPACE HEATING (Circulators without circulator relays) | DHW
(Direct-piped)
EVG Control settings
(
IN ORDER OF
WIZARD
SEQUENCES
)
RED —
VALUE MUST BE SET OR VERIFIED
D —
DEFAULT ACCEPTABLE
;
CHANGE ONLY IF
DESIRED
BOILER SETTINGS
BOILER MODEL Verify model number is correct
WWSD TEMP
Default (70 °F) or as required
HIGH ALTITUDE Set to YES if above 5,500 feet
INPUT/OUTPUT 1 (Assign to PRIORITY 1) (Note 1)
WHAT IS THE USE OF INPUT/OUTPUT 1?
HEAT/DHW DEMAND
WHAT PRIORITY IS INPUT #1?
select PRIORITY 1
WHAT SYSTEM TYPE IS INPUT/OUTPUT 1? DHW (D)
TARGET MOD SENSOR
BOILER OUT (D)
TARGET ADJUST
NONE (D)
SUPPLY MAX D (or change if desired)
RUN BOILER PUMP?
NO (D)
RUN AUX PUMP/OUTPUT?
D (not applicable)
INPUT/OUTPUT 2 (Assign to PRIORITY 2)
WHAT IS THE USE OF INPUT/OUTPUT 2? HEAT/DHW DEMAND
WHAT PRIORITY IS INPUT #2?
PRIORITY 2
WHAT SYSTEM TYPE IS INPUT/OUTPUT 2?
Select correct system type
TARGET MOD SENSOR SYSTEM SUPPLY (D)
TARGET ADJUST
ODT (D)
(Outdoor sensor must be installed)
SUPPLY MAX
D (or change if desired)
SUPPLY MIN D (or change if desired)
OD RESET MAX D (or change if desired)
OD RESET MIN
D (or change if desired)
BOOST TIME D (or change if desired)
RUN BOILER PUMP?
YES (D)
RUN AUX PUMP/OUTPUT? D (not applicable)
INPUT/OUTPUT 3 (Assign to PRIORITY 2)
If PRIORITY 2 is assigned, no further steps are required. If PRIORITY 3
is assigned, repeat the steps from INPUT/OUTPUT 2, above.
PRIORITY SWITCH TIMES:
P1 MAX ON TIME
D (or change if desired)
P2 MAX ON TIME D (or change if desired)
P2 MIN ON TIME
D (or change if desired)
P3 MIN ON TIME D (not applicable)
Finish the WIZARD
ENTER TIME, DATE AND MAINTENANCE INFORMATION AS PROMPTED
Boiler Model, Altitude and Fuel Type are critical
settings.
Failure to set correctly could result in severe
personal injury, death or substantial property damage.
Incorrect setup or piping can result in severe personal
injury, death or substantial property damage.
Use primary/secondary piping or equivalent unless system
meets requirements on page 41 .
Verify that the correct system type is selected on the
control and that operating temperature settings are
suitable for the system. System and structural damage
can occur if temperatures are too high.
Purpose
• Space heating with multiple zones.
• Zoning with circulators using EVG control outputs to
operate zone circulators (3 zones if space heating only;
or 2 space heating zones plus DHW.
• DHW piped directly to the boiler.
• DHW priority — space heating is disabled during call
for heat from water heater.
Control setting notes
• See the table at right for required and optional settings.
• The sequence in the table follows the WIZARD.
• If not using the WIZARD, follow instructions elsewhere
in this manual to enter the settings manually.
Circulators and piping
Provide an external relay and external power
to any circulator if its load rating exceeds 2.2
amps FLA, 3.6 amps locked rotor, or 16.4 amps
in rush.
• Piping must be primary/secondary as shown.
• DHW circulator must be selected to handle the pressure
drop through the boiler, water heater and piping. DHW
circulator supplied by installer.
• For some large indirect water heaters, the required fl ow
rate may require piping the water heater differently.
• The control settings in table at right provide DHW
priority — space heating will be discontinued during
a call for DHW.
• Zone circulators supplied by installer. For alternate zone
wiring using a zone controller, see page 65 .
BOILER
• Boiler circulator shipped loose with boiler.
• Follow all instructions in this manual for piping boiler
and system.
Note 1: If DHW is not used
, provide a third space heating
zone by setting up INPUT/OUTPUT 1 exactly the
same as INPUT/OUTPUT 2. Make sure to assign
INPUT/OUTPUT 1 to PRIORITY 2. This is because
PRIORITY 2 is factory preset for space heating
confi gurations. Wire the third zone thermostat to
P11–4&5 and its circulator to P9–1,4&5.
Part number 550-100-191/0917
74
®
g
as-fired water boiler —
70/110/155
Boiler Manual