Bock Water heaters High Efficiency Condensing Gas Water Heaters User Manual

High Efficiency Condensing

Energy Saver

Gas Water Heaters

Up to 99.1%

Thermal Efficient

 60 to 100 gallons/125,000 to 399,999 BTU
 PVC Conventional, Through-the Wall, or Direct Vent
 Low NOx Premix Power Burner
 Non-CFC foam insulation
 Electronic ignition and controls
 Zero inch clearance to combustibles
 Glass-lined storage tank
 Hand hole cleanout
 Sediment reduction system
 Standard and ASME construction
 NSF kit available
 3" Concentric vent kit available
 Complies with SCAQMD low NOx requirements
 Design certified by CSA International (formerly AGA/CGA)
 3-Year Limited Tank/1-Year Limited Parts Warranties

Whisper Quiet

NOTE: Diagrams are for both the 60 and 100 gallon models

¾” NPT Gas Inlet

1" NPT Space
Heating Outlet

1" NPT Space
Heating Return

1 ½"NPT Inlet

3" PVC Exhaust

3” PVC Air Inlet

G E

B

D

3" PVC
Exhaust

½” NPT
Condensate
Connection

F

ACH

T & P Valve

Cleanout

Drain

B - 28 ¼

Gas Inlet

Exhaust

Air Intake

2 ⁄”

8 ¼

8 ¼

T & P Valve

1 ½” NPT
Outlet

Energy Saver

High Efficiency Condensing

Gas Water Heaters

This product is available from:

MODEL

NUMBER

60 Gallon Models 57 28 1/4 42 13 53 1/2 5 52 1/2 40 1 1/2

100 Gallon Models 77 5/8 28 1/4 63 13 74 3/4 5 74.75 60 1.5

MODEL

NUMBER

60HEC-125 60 125,000 96.0% 187 364 145 104 120 ft 170 ft 570
60HEC-150 60 150,000 93.0% 211 423 169 121 100 ft 150 ft 570

60HEC-199 60 199,999 92.0% 265 558 223 159 80 ft 130 ft 900
100HEC-150 100 150,000 99.1% 250 450 180 129 120 ft 170 ft 900
100HEC-199 100 199,999 98.5% 309 597 239 171 100 ft 150 ft 900
100HEC-250 100 250,000 97.0% 364 735 294 210 80 ft 130 ft 900
100HEC-300 100 300,000 92.0% 405 836 335 239 60 ft 110 ft 900

100-HEC-399 100 399,999 93.0% 521 1127 451 322 50 ft 100 ft 900

STORAGE

(GAL)

A

HT.B DIA.

RATED
INPUT

(BTUH)

T&P Valve: Factory Installed
Brass Drain Valve: Factory Installed
Dielectric Fittings: Factory Installed
Magnesium Anode Rods: Factory Installed

Pressures (all): Working Pressure, 150 psi; Tested Pressure, 300 psi

AMP Draw Range: = 1.0 to 1.8 amps and 7.0 amps for 100HEC-399;

115V A.C. required

Warning: Installation on hard surface only. Installation should be in accordance with all national and/or local codes. In the absence of local codes, refer to
NFPA 54 or ANSI Z21.10.1.

Caution: The recommended maximum hot water termperature setting for normal residential use is 120°F. Bock recommends a tempering valve or anti-scald
valve be installed and used according to the manufacturer’s directions to prevent scalding.

Toll Free 800.794.2491•Phone [phone]●Fax [phone]

110 South Dickinson Street , Madison, Wisconsin 53703

DIMENSIONS IN INCHES

F

E

FL. TO

VENT

OUTLET

DEGREE RISE

INTAKE

THERMAL

EFF %

C
HOT
OUT

1ST HR
DEL GAL.
@ 100° F

RISE

D

COLD

GAS

IN

CONN.

RECOVERY GPH @

40° F 100° F 140° F

1. Determine the total length of straight vent pipe (in feet) required for both the intake
and the exhaust.

2. Add 5 feet of venting for every 90° elbow.

3. Add 2½ feet of venting for every 45° elbow.

4. Total vent length cannot exceed "Max Length" in the above chart.

5. Air intake cannot exceed exhaust by more than 30 feet in any venting situation.

Do not include the 3" exhaust elbow or vent terminals in determining maximum
vent length.

www.bockwaterheaters.com

G

FL. TO

T&P

VALVE

MAX 3”

PVC,

ABS &

CPVC

H

WATER

CONN.

DIA.

MAX 4”

PVC,

ABS &

CPVC

SHIPPING

WT (LBS)

FL. TO

AIR

Determining required vent length

80027 Rev 6/08