9
PART 1. GENERAL INFORMATION
D. PRE INSTALLATION REQUIREMENTS (continued)
This unit is supplied with a relief
valve sized in accordance with ANSI/
ASME Heater and Pressure Vessel
Code, Section IV. The relief valve is
installed near the hot water outlet.
If the valve supplied is replaced,
the pressure rating of the valve
must not exceed the listed working
pressure of this appliance, and
must be rated to the proper BTU/
hr capacity of the water heater.
Do
not, under any circumstances,
thread a cap or plug into the relief
valve! Explosion, serious injury or
death may result!
To prevent water
damage, the relief valve piping must
be directed to the floor or an open
drain, but not connected directly.
There must be a 6” space between
the outlet of relief valve piping and
drain or floor. Do not hook up to drain
system directly without an air gap.
Protect from freezing. Place no other
valve between the relief valve and
the unit. Do not install any reducing
couplings or other restrictions in the
discharge line. The discharge line
must allow complete drainage of the
valve and line. Manually operate the
relief valve at least once a year.
Also, care must be exercised
when choosing the location of
this appliance, where leakage
from the relief valve, leakage
from related piping, or leakage
from the tank or connections,
will not result in damage to the
surrounding areas, or to the lower
floors of the building. A water
heating appliance should always be
located in an area with a floor drain
or installed in a drain pan suitable
for water heating appliances. Under
no circumstances, shall Hamilton
Engineering, Inc. be held liable for
any such water damage whatsoever.
E. PRESSURE RELIEF VALVE
(FIGURE 1-4) HOW TO REMOVE THE FRONT COVER
#1 TURN OFF POWER TO UNIT
DATE
REV.
NAME
CHANGES
REVISION
LOCATION:
Document created with version :
CONTRACT N° :
SCHEME
03
L1
Main Panel
Main Power Terminal Strip
1
2016.0.0.114
User data 2
1
0
Brian
Brian
11/15/2017
10/10/2017
Updated wire colors & AWG
X1
1
2
3
4
120VAC L1
120VAC L2
Neutral
Ground
240VAC Split Phase
Customer Supplied
X2
1
2
3
4
X3
1
2
3
4
CR
1
A1
A2
03
CR1
12
11
14
42
41
44
03
CR2
12
11
14
42
41
44
CR
2
A1
A2
X4
1
2
3
~
M
P1
Motor
Pump
04-3
04-3
04-5
04-6
04-7
04-5
04-5
X5
1
2
3
SGV1
SGV2
1
2
3
1
2
3
599 Only
12
11
14
03
42
41
44
03
12
11
14
03
42
41
44
03
04-11
04-7
18
White
18
White
18
Black
18
Black
18
Red
18
Bl
ac
k
18
Gr
een
18
Red
18
Bl
ac
k
18
Gr
een
18
Bl
ac
k
18
Red
18
Black
18
Black
18
Black
18
Red
18
Red
18
Green
18
White
18
Red
18
Black
F1
SERVICE
RESET
LO
TEMPERATURE
CH
OFF
ON
-
+
INNOVATIVE CONDENSING TECHNOLOGY
By Hamilton Engineering, Inc.
WARNING!
#1
Turn off power
to unit
#2
Remove bottom
screw(s)
WARNING!
Before removing screw and opening front cover,
main power supply must be disconnected (shut off).
HIGH VOLTAGE - RISK OF ELECTRICAL SHOCK!
14
15
16
L
L
230 VAC
Power supply
ST-7
Fuse
To
Ground
OFF
OFF
OFF
Service Switch
ON
INNOVATIVE CONDENSING TECHNOLOGY
By Hamilton Engineering, Inc.
With HOT Controls
by Hamilton Engineering Co., Inc.
#2 REMOVE BOTTOM SCREW(S)
Condensation Removal: This is a
condensing, high efficiency appliance,
therefore condensation removal must be
addressed to avoid damage to surrounding
area or appliance. See Part 4, Section F for
Condensate Requirements (pg.26).
NOTICE
The EVO is certified as an indoor appliance.
Do not install the EVO Plus outdoors or
location where it will be exposed to freezing
temperatures. This includes all related
piping and components. If the EVO Plus is
subjected to flood water or submersed in
water, the EVO Plus must be replaced.
WARNING
Do not, under any circumstances, thread a
cap or plug into the relief valve! Explosion,
severe personal injury, death, or major
property damage may result.
WARNING
