Whirlpool EDP/EDN warranty Table of Contents

Page 2 LAARS HEATING SYSTEMS

TABLE OF CONTENTS

SECTION 1.
General Information
1A.	Introduction	3
1B.	Codes and Standards	3
1C.	Unpacking the Appliance	4
1D.	Locating the Appliance	4
1E.	Clearances	4
SECTION 2.
Venting Options
2A.	Direct Vent Kits	4
2B.	Installing Direct Vent Kits	4
2C.	Locating the Vent on an Outside Wall	4
2D.	Stainless Steel Single Pipe Horizontal
	and Vertical Vents	7
2E.	Air Source for Combustion
	(when not direct vented)	7
2F.	Connecting Special Gas Vent
	to the Appliance	8
2G.	Securing Special Gas Vent	8
SECTION 3.
Gas Piping
3A.	Gas Piping	8
3B.	Domestic Water Piping (EBP only)	9
SECTION 4.
Hydronic Heat Piping
4A.	Hydronic Piping	10
4B.	Using in a Combined Hot Water
	Heating and Chilled Water
	Cooling System	12
4C.	Water Quality and Treatment	13
SECTION 5.
Electrical Connections
5A.	Electrical Connections	13
SECTION 6.
Boiler Start-Up
6A.	Common Vent Test	17
6B.	Filling the System	18
6C.	Firing Burner	18
6D.	Mode and On/Off Buttons Operation	19

SECTION 7.

Maintenance and Component Description

7A.	Unit Pump	19
7B.	Gas Valve	19
7C.	Safety Limit Switch	19
7D.	Operating Control Printed Circuit
	Board (PCB)	19
7E.	Igniter / Flame Sensor Assembly	20
7F.	Transformer	20
7G.	Blower	20
7H.	Transfer Tank (EBP only)	20
7I.	Thermostatic Union (EDP/EDN only)	20
7J	Cleaning the Boiler Coil	20
SECTION 8.
Servicing
8A.	Sequence of Operation	21
8B.	Trouble Shooting - Fault Codes	22
	8B-1. Fault Code Identification	22
	8B-2. Fault Correction	22
	8B-3. Resolving Lockouts	22
	Fault Trees	23
SECTION 9.
Gas Valve Calibration
9A.	Gas Valve Calibration	31
SECTION 10.
Symptom Evaluations
10A.	Delayed Ignition	31
10B.	Short Cycling	32
10C.	Noisy Operation	32
10D.	Insufficient Hot Water (EBP only)	32
10E.	High Gas Consumption	33
SECTION 11.
Parts Identification		34