After changing this unit the hot started coming from the right side and cold from the left side, what did I do wrong?

Yes, you need to rotate both pressure unit & valve 180*.

How do you service this?

There is no servicing required it is to replace a faulty unit. The assembly is secured by a brass retainer ring with three screws.

Will this solve my problem of not getting the desired water mix (hot and cold) ? Water either comes out as hot or cold, and nothing in between.

Amazon Customer, the pressure balance unit does control the balance of hot and cold water and should take care of the problem. The model number of your faucet will determine which PBU is required. If assistance is required in determining this please contact us directly through the American Standard website "Contact Us" located at the bottom of our home page so we can assist you. Sincerely, your American Standard Consumer Connections Team.

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Description

🛁 Elevate your shower game with flawless temperature control — because comfort is non-negotiable!

SAFETY FIRST - Advanced pressure balancing protects against scalding, ensuring a worry-free shower experience for you and your family.
BUILT TO ENDURE - Durable diaphragm system engineered to resist mineral buildup, perfect for hard water environments.
SEAMLESS COMPATIBILITY - Designed specifically for American Standard R110, R115, R120, and R125 rough-in valves for effortless integration.
CONSISTENT COMFORT CONTROL - Maintains stable water temperature despite pressure fluctuations, eliminating sudden hot or cold shocks.
TRUSTED QUALITY WARRANTY - Backed by American Standard’s reliable engineering and a limited 1-year warranty for peace of mind.

The American Standard M952100-0070A Pressure Balancing Unit ensures a consistent and safe shower temperature by balancing hot and cold water pressure. Engineered with a durable diaphragm and integrated check valves, it prevents scalding and cross flow, while resisting mineral deposits in hard water areas. Compatible with multiple American Standard rough-in valves, this unit combines reliable performance with quality construction, backed by a 1-year limited warranty.

Specifications

Material	Plastic, Rubber
Brand	American Standard
Exterior Finish	No Finish
Inlet Connection Type	Connector
Outlet Connection Type	Connector
Number of Ports	2
Global Trade Identification Number	00012611249082
Manufacturer	American Standard
UPC	012611249082
Part Number	M952100-0070A
Item Weight	2.4 ounces
Item model number	M952100-0070A
Is Discontinued By Manufacturer	No
Color	No Finish
Item Package Quantity	1
Included Components	Pressure Balance for Single-Control Tub/Shower Valve
Batteries Included?	No
Batteries Required?	No
Warranty Description	“*1 year Limited warranty from date of purchase”

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