
02
WARNING
PACK CONTENTS
TECHNICAL SPECIFICATIONS
ELECTRICAL REQUIREMENTS
WIRING DIAGRAM
INSTALLATION OPTIONS
INTERNAL COMPONENTS
SAFETY
SITE REQUIREMENTS
CONNECTING TO SERVICES
HOW TO USE - HOW IT WORKS
TEMPERATURE CONTROL
ENERGY SAVING TIPS
FAULT FINDING (Troubleshooting)
SPECIAL EQUIPMENT AND ADVICE TO USERS
TEMPERATURE INCREASE CHART PER GPM
SPARE PARTS
CUSTOMER SERVICE
OTHER PRODUCTS
05
05
05
05
07
07
08
08
09
09
11
12
12
13
14
14
15
16
17
03
Congratulations!
You've just purchased a new Power Pak Plus tankless water heater and will
soon begin to enjoy the benefits of “going tankless.”
Please take the time to thoroughly read and understand this safety and
installation manual in its entirety before you attempt to install your new
tankless water heater, as it contains important safety tips and instructions.
Please carefully read all instructions and warnings. Should you have any
questions, please visit www.marey.com for installation videos and FAQ.
Please keep this manual for future reference and technical information.
QUICK START GUIDE 04

If your water heater requires a reset, be sure to TURN OFF THE BREAKERS prior to resetting
the unit.
Resetting your unit without turning off the breakers can result in personal injury and damage
to your water heater.
WARNING! There is water contained in the coils of your water heater at all times. If your water
heater is exposed to freezing temperatures, the water in the coils could freeze, causing a
break in the heat exchanger of the unit, or the supply and return lines. This kind of damage will
result in water running freely into the space where the water heater is located, which can
cause flooding. DO NOT install this water heater where it may be subjected to a freeze. If your
water heater is in an area where freezing is a possibility, you must turn off the water to the
heater and drain it of any water by disconnecting the water lines. Leave the water lines
disconnected until you intend to use the water heater.
- Heater
- Hanging Bracket with Screws
The heater must be connected to its own independent electrical circuit. Install a
fuse box or switch (“breaker") for exclusive use of the heater.
PP110 PPXE5ITEM CODE
Voltage
Power
Inlet Pipe Measures
Outlet Pipe Measures
Amps.
Cycle
Water Pressure
Wires
Max. Gallons per Minute
Master Place Cover
Width x Height x Depth
Standard and Approvals
½" NPT
½" NPT
10-40A
50-60Hz
0.55 Bar (8 PSI) - 6.37 Bar (92.365 PSI)
8 AWG
2 GPM 3 GPM
ABS Heating Elements Copper
11.1" x 10.2" x 4.8"
ISO 9001
110V
1.1kW - 4.4kW
220V
2.2kW - 8.8kW
04 05