Weil-McLain Evergreen EVG 110, Manual

Page: 76 / 144

EXPRESS SETUP — Example C
Multi-zone SPACE HEATING (Zone WMZV controller) | 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)
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 (Not used)
WHAT IS THE USE OF INPUT/OUTPUT 3? NONE
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 zone valves.
DO NOT
use 3-wire zone
valves — the voltage on the valve end switch will damage
the EVG control. Use only 4-wire zone valves with
isolated end switches.
• 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.
• The system circulator is wired to OUTPUT 2. It will
be activated on any call for heat from a zone valve end
switch.
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 valves and system circulator supplied by installer.
For alternate zone wiring using a zone controller, see
page 65 .
• A by-pass pressure regulator is recommended when
used in a zone valve system as shown in this express
setup.
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
, set the USE of INPUT/OUTPUT 1
to NONE. Keep all other wiring as shown at right and
follow all settings given above for PRIORITY 2.
Part number 550-100-191/0917
76
®
g
as-fired water boiler —
70/110/155
Boiler Manual