L o c h i n v a r
D E S I G N E R
’
S
G U I D E
C O P P E R
-
F I N
I I
W A T E R
H E A T E R
6 1 5 - 8 8 9 - 8 9 0 0
1
Codes . . . . . . . . . . . . . . . . . . . . . . . . .2
Combustion & Ventilation Air . . . . . . . . .6
Contaminants . . . . . . . . . . . . . . . . . . . .7
Determining Total “Free Area” . . . . . . . .7
Electrical Requirements . . . . . . . . . . . .20
Gas Supply . . . . . . . . . . . . . . . . . . . .17
General Venting . . . . . . . . . . . . . . . . . .7
Location of Unit . . . . . . . . . . . . . . . . . .2
Low Water Temperature Delivery . . . . .18
Outdoor Use . . . . . . . . . . . . . . . . . . . .4
Outdoor Installation . . . . . . . . . . . . . .16
Pump Operation . . . . . . . . . . . . . . . . .19
Relief Valve . . . . . . . . . . . . . . . . . . . .20
Venting Options . . . . . . . . . . . . . . . . . .9
Water Connections . . . . . . . . . . . . . . .18
Water Treatment . . . . . . . . . . . . . . . . .19
Water Velocity Control . . . . . . . . . . . .19
Figures & Tables Index
FIG. 1 Models CF 991-2071
Requirements For Installation
Over Combustible Floor . . . . .3
FIG. 2 Models CF 401-751
Special Combustible
Floor Base . . . . . . . . . . . . . . .4
FIG. 3 Water Heater Equipment
& Control Orientation . . . . . . .5
FIG. 4-7 Combustion &
Ventilation Air . . . . . . . . . . .6,7
FIG. 8 Barometric Damper
Installation . . . . . . . . . . . . . . .9
FIG. 9 Multiple Unit Barometric
Damper Installation . . . . . . .10
FIG. 10 Powered Sidewall Venting
(Powered Vent Cap Shown) . . .10
FIG. 11 Powered DirectAire Horizontal
(Powered Vent Cap Shown) . . .11
FIG. 12 Vertical Vent & Air Inlet . . . . .13
FIG. 13 Vertical Vent & Sidewall
Air Inlet . . . . . . . . . . . . . . . .13
FIG. 14 Aire-Lock Direct Vent . . . . . . .14
FIG. 15 Sidewall Vent . . . . . . . . . . . .15
FIG. 16 Outdoor Venting . . . . . . . . .16
TABLE A. Combustible Floor Kits . . . . . . .3
TABLE B. Clearances From
Combustibles . . . . . . . . . . . . .4
TABLE C. Flue Sizes & Inlet
Air Pipe Sizes . . . . . . . . . . . .9
TABLE D. Powered Sidewall Vent Kits . .11
TABLE E. Power DirectAire
®
Horizontal
Vent Kits . . . . . . . . . . . . . . .12
TABLE F. DirectAire Vertical Air
Inlet Kits . . . . . . . . . . . . . . .14
TABLE G. Direct Vent Kits . . . . . . . . . . .15
TABLE H. Sidewall Vent Kits . . . . . . . . .16
TABLE I. Outdoor Kits . . . . . . . . . . . .17
TABLE J. Gas Supply Pipe Sizing . . . .17
TABLE K. Inlet Gas Pressure . . . . . . . . .18
TABLE L. Required Temperature Rise . .19
TABLE M. Required Pump Performance .19
TABLE N. Common Water
Manifold Sizes . . . . . . . . . . .20
TABLE O. Amp Draw . . . . . . . . . . . . .20
Water Heater Piping Diagrams
Single Heater – Single Tank . . . . . . . . .A1
Single Heater – Two Tanks . . . . . . . . .A2
Two Temperature Installation
Single Heater – Single Tank . . . . . . . . .A3
Two Heaters – Single Tank . . . . . . . . .A4
Two Heaters – Two Tanks . . . . . . . . . .A5
Multi-Stack Frame
Two Heaters Single Tank . . . . . . . . . . .A6
Table of Contents
