Symmons 7-210-CK - User Manual

3
Installation
Symmons Industries, Inc. ■ 31 Brooks Drive ■ Braintree, MA 02184 ■ (800)796-6667 ■ Fax: (800)961-9621
©2014 Symmons Industries, Inc. ■ www.symmons.com ■ gethelp@symmons.com ■ ZV-3010 REV D 05/27/14
Sizing Valve
For assistance in sizing and selection of the proper
valve, consult your local representative or Symmons
Customer Service.
Installing Valve
1) Flush piping thoroughly prior to installing.
2) Install valve so as to allow clearance for replacing
cartridge. Valve can be installed in any orientation.
valve body
(shown without
valve fittings)
safety cap
retaining nut
cartridge
3-1/2"
(89 mm)
Valve
clearance
3) Connect valve input/ouput to supply ports.
a. Hot port marked (H)
b. Cold port marked (C)
c. Mixed output port marked (M)
Setting Valve Temperature
1) Turn hot and cold water supply on.
2) Open faucet to allow hot water to ow for a
minimum of one minute. For two handle faucets
turn on hot water only. For single handle faucets
turn on to the hot position.
3) Remove the safety cap by inserting a small at
tip screw driver into the wide slot at the base of
the cap and pry upward, then ip the safety cap
over 180 degrees and t onto the end of valve
spindle.
Temperature
Adjust
Safety Cap
4) Place thermometer in the outlet stream. Measure
and accurately set temperature. Inlet temperature
must be ± 10°F (5.55°C) of desired output.
5) To increase temperature turn safety cap
counter-clockwise. To decrease temperature turn
safety cap clockwise.
For single temperature applications adjust valve
outlet temperature with full ow of tempered
water from tting.
For dual temperature applications open
approximately 50% of all faucets to their full hot
position to ensure proper operating temperature
at peak demand.
6) Remove safety cap from end of valve spindle and
ip over 180 degrees, then press cap down and
snap back onto valve body to replace.
Note: Once the safety cap is snapped onto the
valve body the outlet temperature cannot be
changed without repeating steps 2-6.
Warning: Water temperatures in excess of
110°F (43°C) may cause scalding, or
severe injury!
Maxline
Operation & Maintenance Manual
7-210-CK

Summary

Installation

Sizing Valve

Assisting with valve sizing and selection by consulting local representatives or Symmons Customer Service.

Installing Valve

Flush piping, install valve with clearance for cartridge replacement, and connect hot, cold, and mixed ports.

Setting Valve Temperature

Turn on water, flush, reposition safety cap, measure outlet temp, adjust using cap, and heed scalding warning.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Symmons 7-210-CK Maxline is a thermostatic mixing valve designed for precise temperature control of hot water in various applications, from single-point-of-use to multiple fixture systems. Its primary function is to blend hot and cold water to deliver a tempered output at a user-defined temperature, ensuring safety and comfort while preventing scalding.

Function Description:

The Maxline valve operates by continuously sensing the temperature of the mixed water and adjusting the flow of hot and cold water to maintain a consistent output temperature. This is achieved through an internal cartridge that responds to temperature changes, ensuring that the tempered water delivered to faucets or other fixtures remains within a narrow range of the set point. The valve is designed to be installed in the hot water supply line, typically after a hot water tank or heater, and before the individual fixtures. It has three main ports: a hot input (marked 'H'), a cold input (marked 'C'), and a mixed tempered output (marked 'M').

In a point-of-use diagram, the Maxline valve can supply tempered hot water to individual fixtures like lavatory faucets and kitchen faucets. For multiple fixture applications, a single Maxline valve can temper the hot water supply for an entire system, including single-supply faucets and two-supply faucets. An optional high-temperature hot supply can be routed around the Maxline valve for specific needs like laundry, where hotter water may be desired. A thermometer is recommended in the tempered hot supply line to monitor the output temperature.

Important Technical Specifications:

• Clearance: The valve requires a 3-1/2" (89 mm) clearance for maintenance, specifically for replacing the cartridge.
• Temperature Accuracy: The valve can accurately set the output temperature, provided the inlet temperature is within ± 10°F (5.55°C) of the desired output.
• Scalding Warning: Water temperatures in excess of 110°F (43°C) may cause scalding or severe injury. This highlights the importance of proper temperature setting and monitoring.
• Installation Orientation: The valve can be installed in any orientation, offering flexibility in plumbing layouts.

Usage Features:

• Temperature Adjustment: The valve features a safety cap mechanism for temperature adjustment. To change the temperature, the safety cap must first be removed by prying it upward from its base using a small flat-tip screwdriver. Once removed, the cap can be flipped 180 degrees and fitted onto the end of the valve spindle. Turning the safety cap counter-clockwise increases the temperature, while turning it clockwise decreases the temperature. After adjustment, the safety cap is removed from the spindle, flipped 180 degrees again, and pressed back onto the valve body, where it snaps into place. This design prevents accidental temperature changes once set.
• Single Temperature Applications: For applications requiring a single, consistent temperature, the valve outlet temperature should be adjusted with the full flow of tempered water from the fitting.
• Dual Temperature Applications: In systems with dual temperature requirements, such as those with both hot and cold faucets, the valve should be adjusted by opening approximately 50% of all faucets to their full hot position. This ensures proper operating temperature at peak demand.
• Piping Flush: Prior to installation, it is crucial to thoroughly flush the piping to remove any debris that could interfere with valve operation.
• Hot Water Flow for Setting: When setting the temperature, it is recommended to allow hot water to flow for a minimum of one minute. For two-handle faucets, only the hot water should be turned on. For single-handle faucets, the faucet should be turned to the full hot position.

Maintenance Features:

• Cartridge Replacement: The valve is designed for easy cartridge replacement, requiring a 3-1/2" (89 mm) clearance. The cartridge is secured by a retaining nut and protected by a safety cap. The manual illustrates the valve body with the cartridge, retaining nut, and safety cap, indicating that these components are accessible for service.
• Safety Cap Mechanism: The safety cap not only serves as a temperature adjustment tool but also acts as a protective cover, preventing unauthorized or accidental changes to the set temperature. Once the safety cap is snapped back onto the valve body, the outlet temperature cannot be changed without repeating the removal and adjustment steps. This feature enhances safety and maintains the desired temperature setting.
• Troubleshooting (Implicit): While not explicitly detailed as a maintenance feature, the ability to easily replace the cartridge suggests that common issues related to temperature regulation or flow could be resolved by replacing this internal component. The design allows for straightforward access to the valve's core functional part.

Symmons 7-210-CK Specifications