WATTS D3803004SS Stainless Steel Manifolds Instruction Manual
- June 10, 2024
- WATTS
Table of Contents
WATTS D3803004SS Stainless Steel Manifolds
Product Information
Stainless Steel Manifolds
The Stainless Steel Manifolds by Watts are designed to provide great features for centralizing plumbing connections and controls. The manifolds are sold in pairs and offer options for flow balancing, on/off circuit control, and various accessories for customization. The manifolds come in different sizes and models, ranging from M2 to M12, with flow meters included. Additional accessories include vent/purge assembly, valve actuator, transitional fittings, mounting brackets, and lockable manifold boxes. The balancing valves allow for flow adjustment, which can be visually fine-tuned by viewing the sight glass indicator while adjusting the valve on the return manifold. For systems requiring individual circuit thermostatic control, an optional circuit actuator can be installed. The valve actuators are four-wire devices that can connect to the zone thermostat and use end switch wires to activate the circulator.
Product Usage Instructions
- Before using the equipment, read the manual carefully to ensure safety and avoid damage to the equipment.
- Choose the appropriate size and model of the stainless steel manifold according to your plumbing needs.
- Install the manifold following the provided installation instructions and using the mounting brackets (included with manifold pairs).
- If necessary, install additional accessories such as vent/purge assembly, valve actuator, transitional fittings, or trunk isolation valves.
- Adjust the flow balancing valves to fine-tune flow by viewing the sight glass indicator while adjusting the valve on the return manifold.
- Install an optional circuit actuator for systems requiring individual circuit thermostatic control.
- For additional flow control, install individual circuit isolation mini-ball valves without having to remove the adjustment cap or thermal actuator.
- Refer to the manual for specific instructions on how to use each accessory or make adjustments as needed.
- Keep the manual for future reference in case of maintenance or troubleshooting needs.
Overall, Watts Stainless Steel Manifolds provide a great solution for centralizing plumbing connections and controls with options for customization and flow control. Following the provided instructions and safety guidelines will ensure effective and safe usage of the equipment.
WARNING
Read this Manual BEFORE using this equipment. Failure to read and follow all safety and use information can result in death, serious personal injury, property damage, or damage to the equipment. Keep this Manual for future reference.
Watts Stainless Steel Manifolds offer great features for centralizing plumbing connections and controls.
- Flexible, modular, and singular design system
- Easy-to-assemble construction
- Precise flow control and balancing
- Fittings for both PEX and Onix radiant tubing
- Control for hydronic floor, fan coil, or baseboard heating
- No sealant, no PTFE tape
The manifolds are sold in 1 to 12 branch pairs for easy assembly in the field. Constructed with 1″ AISI 304 Stainless Steel, these distribution units can handle up to 12 gallons per minute. The manifold sections connect easily when more circuits are required. Simply thread two sections together by using a 1″ manifold coupling and tighten. Install the gasket before assembly.
Manifolds Are Sold in Pairs
Balancing Valve Manifold (with optional Actuator) Flow Indicator Manifold
Accessories
Add-ons include Vent/Purge Assembly, Valve Actuator, Transitional Fittings,
Mounting Brackets (standard with manifold pairs), and Lockable Manifold Boxes
(Vent/Purge, End Caps, Trunk Isolation Valves, and Transition Fittings all
have flat gaskets that must be installed without the use of sealants or PTFE
tape.)
Flow Balancing
Balancing is achieved by either one of two methods:
- Using the Balance Valve Adjustment Knob
- Using the Valve Flow Adjustment Key to change the dial located under the adjustment knob (The key comes attached to the manifold with a nylon tie.)
Flow can be visually fine-tuned by viewing the sight glass indicator while adjusting the balancing valve on the return manifold.
On/Off Circuit Control
For systems requiring individual circuit thermostatic control, install the optional circuit actuator. Valve actuators are fourwire devices, to connect to the zone thermostat and use end switch wires to activate the circulator. With this arrangement, each room can be thermostatically controlled from one central distribution manifold.
NOTICE
Depending on the actuator style in use, some circuit adjustment may be necessary. Additional flow control can be achieved by installing individual circuit isolation mini-ball valves. These valves allow for balancing and shutoff capabilities without having to remove the adjustment cap or thermal actuator. Manifolds are not intended to exceed 87 psi at 194°F operating conditions.
ITEM NUMBER DESCRIPTION
D3803002SS| M2 Stainless Steel Manifold Pair with Flow Meters
D3803003SS| M3 Stainless Steel Manifold Pair with Flow Meters
D3803004SS| M4 Stainless Steel Manifold Pair with Flow Meters
D3803005SS| M5 Stainless Steel Manifold Pair with Flow Meters
D3803006SS| M6 Stainless Steel Manifold Pair with Flow Meters
D3803007SS| M7 Stainless Steel Manifold Pair with Flow Meters
D3803008SS| M8 Stainless Steel Manifold Pair with Flow Meters
D3803009SS| M9 Stainless Steel Manifold Pair with Flow Meters
D3803010SS| M10 Stainless Steel Manifold Pair with Flow Meters
D3803011SS| M11 Stainless Steel Manifold Pair with Flow Meters
D3803012SS| M12 Stainless Steel Manifold Pair with Flow Meters
D4201720-P| Trunk Isolation Ball Valve with Temperature Gauge
D4201715-N| Vent and Purge Assembly
D063064-N| Manifold End Cap
D4201480-P| BSP to NPT Transition Fitting
D402178-P| 1″ x 1″ Manifold Coupling
Note
- Order T-20 Compression PEX fittings or Onix fittings and clamps separately.
- Stainless steel manifolds can be ordered fully assembled.
-
The manual vent at the top of the Vent/Purge assembly uses a directional discharge cap. Turn the white cap to aim the pressure discharge. The Vent/Purge assembly incorporates a built-in purge valve. Open the valve by loosening the lower nut. To close the valve, tighten the lower nut. Do not adjust the Attachment Nut, as this part removes the valve from the assembly.
-
When tightening the compression nut, hold the base firmly with a thin profile box wrench. Do not let the base nut tighten or loosen while adjusting the compression fit.
-
Tighten the compression nut to 20 inch pounds of torque. If without a torque wrench, tighten the nut until snug then make an additional quarter turn.
NOTE: The compression sleeve is “directional.” It is barbed on the inside to help lock the PEX in place. Slide the sleeve onto the PEX so the groove on the outside of the sleeve is closest to the insert fitting.
Limited Warranty
Watts Regulator Co. (the “Company”) warrants each product to be free from
defects in material and workmanship under normal usage for a period of one
year from the date of
original shipment. In the event of such defects within the warranty period,
the Company will, at its option, replace or recondition the product without
charge.
THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no control. This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product. Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to determine your rights.
SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.
- USA: T: 800-276-2419 • Watts.com
- Canada: T: 905-332-4090 • Watts.ca
- Latin America: T: (52) 55-4122-0138 • Watts.com