Install Instructions

Part number 550-100-131/0715
– 51 –
™
GAS-FIRED WATER BOILER — Boiler Manual
Field wiring (see wiring diagram, Figure 62, page 57)(continued)
A. 120 VAC Power Supply – REQUIRED
4ERMINAL"LOCK4(control tray, right front)
1. Provide and install a properly sized fused disconnect or
service switch as required by applicable codes. (15-amp for
most cases.)
a. Use table at right to determine total load. Suggested
fused disconnect or service switch sizing is 15-amp if
total load is 12 amps or less, 20-amp if total load is more
than 12 amps.
2. Connect properly sized
6!# power wiring to Evergreen
boiler line voltage terminal strip T1 as shown at right.
3. If possible, provide a surge suppressor in the supply power
line. This will reduce the possibilities of control damage due
to line surges.
4. Must wire ground to this terminal to provide boiler ground-
ing.
$ETERMINETOTALLOAD
Boiler & boiler pump
(combined load)
Output 1 . . . . . . .
(2.2 amps max)
Output 2 . . . . . . .
(2.2 amps max)
Output 3 . . . . . . .
(2.2 amps max)
Service receptacle
(2.0 amps max)
TOTAL . . . . . . .
8.4 amps
____ amps
____ amps
____ amps
____ amps
____ amps
See Figure 62, page 57 for details
"6!#/UTPUTS – As needed for systems
4ERMINAL3TRIP0(EVG control module, right side)
1. Output 1: P2 Terminals 1 (H), 4 (N), 7 (G).
2. Output 2: P2 Terminals 2 (H), 5 (N), 8 (G).
3. Output 3: P2 Terminals 3 (H), 6 (N), 9 (G).
4. Maximum load: 2.2 amps (use relay if circulator load is higher). See WARN-
ING below.
5. These three outputs (Output 1, Output 2, and Output 3) can provide 120VAC
to the following listed below.
s A zone
circulator.
s A system circulator.
s A DHW circulator (used to circulate through an indirect tank).
s An auxil
iary item that must be energized during an input call, such as
an air damper.
6. When using inputs/outputs for heat/DHW demands, each input (Input 1,
Input 2, and Input 3) controls its respective 120VAC output (Output 1, Out-
put 2, and Output 3). Outputs are energized only when BOTH conditions
below are met:
a. The corresponding input indicates a call for heat/DHW (i.e. contact
closure).
b. The PRIORITY assigned to the Input/Output pair is ACTIVE (i.e. the zone
may be calling but the pump won’t activate unless the boiler is currently
running on that system/priority).
7. When using the inputs/outputs for the AUX PUMP/OUTPUT function, the
output is controlled by selectable conditions set up in the control.
a. Use the AUX PUMP/OUTPUT function for devices such as system pumps,
combustion air dampers, and other auxiliary equipment to activate when
the boiler is on/running.
b. See page 76 and page 77 for more information on the setup and selection
of operating conditions.
&OR0RIORITY$(7!PPLICATION:
The DHW aquastat can be connected to any one of the three input/
output pairs. The selected input should be assigned to PRIORITY 1
during the WIZARD setup or manually in the ASSIGN INPUTS
menu.
See Figure 62, page 57 for details
/UTPUT CIRCUITS ARE 6!#)F
AN OUTPUT ISTO OPERATE A LOW
VOLTAGE CIRCUIT OR MUSTBE AN
ISOLATED CONTACTUSE AN ISOLA
TIONRELAY
#)2#5,!4/20/7%2 — 4HEMAXIMUMALLOW
ABLECURRENTFOREACHCIRCULATORISAMPS
AT6!#
.
For circulators with higher amp ratings, install a circulator re-
lay or starter. Connect only the 120-VAC coil to the Evergreen
circulator terminals.