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O il-Fired
www.bockwaterheaters.com
110 South Dickinson Street , Madison, Wisconsin 53703
Toll Free 800.794.2491
•
Phone 608.257.2225
●
Fax 608.257.5304
80014-R Rev 2/08
NOTE: 32E First Hour Rating = 180 Gallons
*Nipple not included
**Optional setting, contact factory
***Weight does not include burner and controls
T&P Valve: Factory Installed
Drain Valve: Factory Installed Brass Valve
Standard Voltage (all): 120V, 60 Hz, 1P
Pressures (all): Working Pressure, 150 psi; Testing Pressure, 300 psi
ASHRAE: All Bock Products Meet or Exceed Current ASHRAE Standards.
Warning: Do not install on combustible ooring. Installation should be in accordance with all national and/or local codes. In the absence of local
codes, refer to NFPA 31 or ANSI Z.21.10.1.
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.
20e 32E, 50ES, 51E, 71E 33E, 40E 120E
Outlet
Combined
Appliance
Outlet
Inlet
T&P
Relief
Valve
D
C
B
E
A
Drain
Valve/
Return
Aquastat
Connection
Outlet
Auxiliary
Outlet:
32EC/BCS,
71EC,
51EC/BCS
Inlet
T&P
Relief
Valve
D
C
B
E
A
Drain
Valve/
Return:
32E,
50ES, 51E
Aquastat
Connection
Drain
Valve/
Return:
71E
Hand-Hole:
50ES
Hand-Hole:
71E
Outlet
Auxiliary
Outlet:
40BCSE
T&P
Relief
Valve
C
B
E
A
Drain
Valve/
Return
Aquastat
Connection
Inlet
Outlet
Auxiliary
Outlet
Inlet
T&P
Relief
Valve
D
C
B
E
A
Drain
Valve/
Return
Aquastat
Connection
Hand-Hole
Return:
120E,
190E,
241E,
361E
Model
Storage
(gal)
Rated Input
Recovery
@ ∆ 90°F
(GPH)
Max. Temp
Setting
(°F)
Inlet
Pipe
Dia.
Outlet
Pipe
Dia.
Return
Pipe
Dia.
Dimensions
Shipping Weight
(lbs)***
BTH/HR GPH A B C D E Standard ASME
20e 20 60,000 0.43 66 160 3/4” 3/4” 3/4” 38 1/4” 20” 6” 11” 14 3/4” 148 N/A
32E 32 104,000 0.75 114 160 3/4” 3/4” 3/4” 51” 20” 6” 11” 17” 272 N/A
33E 33 104,000 0.75 111 160 3/4” 3/4” 3/4” 43 1/4” 24” 6” N/A 17 1/4” 278 N/A
40E 40 126,000 0.90 136 160 3/4” 3/4” 1” 61” 20” 6” N/A 18” 301 N/A
50ES 50 140,000 1.00 151 160** 1” 1 1/2”* 1 1/2” 52” 26” 6” 13 1/2” 18 1/2” 369 N/A
51E 50 152,000 1.10 161 160** 1” 1” 3/4” 59” 24” 6” 11” 18” 330 N/A
71E 68 173,000 1.25 177 160** 1”
1 1/2”* 1 1/2” 66” 26” 6” 13 1/2” 22” 438 N/A
120E 113 155,000 1.10 163 180 1” 2”* 2” 67” 31 1/2” 6” 19” 22” 709 N/A