Weil-McLain PLUS-E017-A/1206 manual Gas-firedboiler applications, B1. Install system water piping

PLUS LINE  Indirect-Fired Water Heaters – Series 3

B gas

Gas-fired boiler applications

Overview

Follow the guidelines in this section to install Gas-fired boilers with PLUS or PLUS indirect water heaters. Install the domestic water piping and water heater following the guidelines of Section A. See Sections C and D for other boiler applications.

B1. Install system water piping
	System water piping methods		25
	Boiler circulator		25
	Sizing space heating system piping		25
	Zoning with zone valves		26
	Zoning with circulators		27
	Combined space heating/water heating applications		28
	Dedicated water heating-only applications		28
B2. Install boiler-to-water heater piping
	Combined space heating/water heating applications		28
	Dedicated water heating-only applications		28
B3.	Field wiring —	Gas-fired boilers only
	Installation must comply with:		30
	Line voltage connections		30
	Wiring boiler circulator		30
	Wiring PLUS circulator		30
	Wiring a system circulator		31
	Routing line voltage wiring		31
	Low voltage connections		31
	Room thermostat (space heating)		31
	Outdoor temperature sensor		31
	PLUS water heater thermostat		31
	Additional limits		31
B4.	Start-up —	Gas-fired boilers only
	Follow boiler manual		33
	Set space heating operation		33
	Water heater operation		33
	Water heater operation setup		33
	Verify space heating operation		33
	Verify water heater operation		34
	Operating information		34
	Replace boiler jacket front door		34

24 Part Number PLUS-E017-A/1206