Weil-McLain Evergreen EVG 220, Руководство пользователя

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Part number 550-100-131/0120
– 58 –
®
gas
-
fired water boiler
— 220/299/300/399 Boiler Manual
Field wiring
(see wiring diagram, Figure 65, page 59)(continued)
M. 0–10 VDC Remote MODULATION input –
OPTIONAL
Terminal Block P15 #5 & #6
(EVG control module, left side)
1. See illustration at right and Figure 65, page 59 for details.
2. This illustration also shows how to connect TT or end switch contacts at
INPUT 2 and INPUT 3 for other uses.
3. Note that using 0–10VDC input replaces INPUT 1 for generating a heat
demand. Do not wire any input to INPUT 1 as shown at right.
4. Remote modulation requires a 0–10VDC input signal at P15-4/5 as shown
at right.
a. The 0–10VDC input positive connection must be at terminal 6 and com-
mon connection at terminal 5.
5. Control setup:
a. Many options are available for configuring the control. The following is
a suggested setup that uses factory default settings as much as possible.
b. Default is BASIC in the Contractor menu.
c. If DHW is required, use PRIORITY 1 to minimize setup steps.
• Connect the DHW aquastat to INPUT 2 or INPUT 3 and assign the
input used to PRIORITY 1.
• Verify that control settings are suitable for the application, change
if necessary.
d. Use PRIORITY 2 for the system to be remote modulated.
• The factory default settings for this priority are best suited for space
heating.
• Assign INPUT 1 to the priority chosen. Accept all defaults for INPUT 1
— no changes should be necessary during the WIZARD.
• After the WIZARD has been completed, go to the ASSIGN INPUTS
menu for INPUT 1. Change SOURCE to 0–10V (default setting is
TT1). See page 78 for ASSIGN INPUTS menu information.
6. Operation:
a. The boiler comes on at 0.9VDC and turns off at 0.8VDC. 1 VDC = 10%
input. 10 VDC = 100% input. These voltage settings are not adjustable.
b. OUTPUT 1 (120VAC) is activated and deactivated as the heat demand
is turned on and off. This output is a good choice to operate the system
pump.
7. NOTE: The EVG control can be configured to use either 0–10VDC for target
operation (see previous section) or modulation,
but not both
.
See Figure 65, page 59 for details.
N. 120VAC Power Receptacle
Located on boiler right side panel
1. Electrical rating is 2.0 amps max at 120VAC.
2. This receptacle can be used to plug in a condensate pump.
O. Multiple Boiler and BMS Connections –
see ADVANCED Manual
Terminal Strips P4 and P5 on Pump/Comm Board
(control tray, left side)
1. The boiler control is capable of multiple boiler communication and control
of up to eight Evergreen
®
boilers in one installation.
2. The boiler control is also capable of BMS communication.
3. The boiler control is also capable ZoneStacking
TM :
Uses All boiler inputs, not just the first and last boilers, up to 24 customiz-
able inputs across boiler network (3 per unit, maximum of 8 boilers on
the network).
4. See Evergreen
®
Advanced Manual for multiple boiler installation and setup
information.
See EVG Advanced Manual for details.