American Water Heater Tankless Water Heater System - Manual (Page 2)

2
Certifications..................................................................................3
Water Quality and Scale ................................................................4
Pump Sizing for Circulation..........................................................5
Table of Contents
Tank Water Heaters in a Circulation Loop
Additional Guidelines
Pump Sizing for Storage Tank Applications
Pressure Loss Curves
Domestic Hot Water - Standard Installation
1 Water Heater
2 Water Heaters (WH-
3 Water Heaters (WH-
4 Water Heaters (WH-
5 Water Heaters (WH-
6 Water Heaters (WH-
Domestic Hot Water with Optional Freeze Protection
on Outdoor Models
1 Water Heater
2 Water Heaters (WH-2-
3 Water Heaters (WH-3-
6 Water Heaters (WH-6-
Domestic Hot Water with Circulation Systems
1 Water Heater - Preferred (WH-
1 Water Heater - Optional (WH-1-R)
2 Water Heaters - Preferred (WH-2-RGE)
2 Water Heaters - Optional (WH-
3 Water Heaters - Preferred (WH-3-RGE)
6 Water Heaters - Preferred (WH-6-RGE)
Domestic Hot Water with Backup Storage Tanks
1 Water Heater
1 Water Heater with Circulation (WH-
2 Water Heaters (WH-2-
2 Water Heater with Circulation (WH-
3 Water Heaters (WH-3-
3 Water Heater with Circulation (WH-
6 Water Heaters (WH-6-
6 Water Heater with Circulation (WH-
Maintenance Procedure
Scale Flush Procedure (M-1-F
...................................6
....................................................................6
...............................7
..................................................................8
(WH-1)....................................................................9
2) ................................................................10
3) ................................................................11
4) ................................................................12
5) ................................................................13
6) ................................................................14
(WH-1-D) ..............................................................15
D) ............................................................16
D) ............................................................17
D) ............................................................18
1-RGE).......................................19
..............................................20
.....................................21
2-R)............................................22
.....................................23
.....................................24
(WH-1-B) ..............................................................25
1-B-R) .................................26
B) ............................................................27
2-B-R) .................................28
B) ............................................................29
3-B-R) .................................30
B) ............................................................31
6-B-R) .................................32
) .....................................................33