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Water connections
1. All water pipe must comply with national and applicable state and local water pipe codes.
2. A pressure relief valve must be installed if the cold water supply pressure exceeds 150PSI (1Mpa)
3. The unit should be connected directly to the main water supply. Flush pipe with water to remove any debris or
loose particles
4. It is required to use 1/2"NPT water connections to fit the models MS080C2PSU, MS100C2PSU, MS120C2PSU;
use 3/4"NPT water connections to fit the models of MS150C2PSU, MS180C2PSU, MS210C2PSU, MS150C2PMU,
MS180C2PMU, MS210C2PMU.
5. Please remember to install the rubber seal o' rings at the connections. When all water connections are completed,
check for leaks and take corrective action before proceeding.
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Electrical connection
1. All electrical work must comply with national and applicable state and local electrical codes.
2. All units must be connected to a properly grounded dedicated branch circuit of proper voltage rating.
3, MS080C2PSU, MS100C2PSU, MS120C2PSU can be connected to a single circuit, use a supply cable protected
by a double pole breaker. MS150C2PSU, MS180C2PSU, MS210C2PSU require two independent circuits. Use two
supply cables protected by two separate double pole breakers.
4. While connecting the cables to terminal the blocks, please make sure the metal wire ends and the terminal blocks
to touch completely. Then tighten the screws up to make sure the current can go through.
5. Before beginning any work on the electric installation, be sure that main panel breaker switch is OFF to avoid any
danger of electric shock, all mounting and plumbing must be completed before proceeding with electrical hook-up.
■ Operation Instructions
MS-PSU Series
1. Turn on the circuit breaker to bring electrical power to the unit.
2. Open water faucet for a few minutes until water flow is continuous and all air is purged from water pipes. The unit
must be operated after the breakers are turned on.
3. After the unit is powered, a beep sound can be heard and a LED lights for 2 seconds, no other display, the
appliance keeps standby.
4. Press "
" to turn ON/OFF the appliance. When the unit is ON, LED displays actual water temperature of the
outlet. When the appliance stops working, the screen switches to the screen saver after 5 seconds. The display
screen light will be off. If the screen is touched, it will be lighted again.
to adjust the outlet temperature. Temperature setting range is 30—53 ºC / 82-127 ℉ .
5. Press
and
z
If the unit has been paused, you may initially get a short burst of very hot water while you turn it on again. Please
run the water through for a few seconds to let the temperature settle down. Please check water temperature with
your hand before taking a shower.
z
If the unit will not be used in winter, drain out water completely so that the heater will not be frozen.
z
Please periodically clean inlet strainer and the shower to keep a free water flow.
6. Press
then press
7. There is an automatic memory function to avoid repetitive operation, while you turn on the appliance, the default
set temperature will be the same as set last time.
to convert the temperature display between Fahrenheit degree and Celsius degree.
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