Watkins 48-0041-K Double Barrel Heater Manifold Kit Instructions
- June 13, 2024
- Watkins
Table of Contents
Watkins 48-0041-K Double Barrel Heater Manifold Kit
Kit contains
1 Turn-Around manifold
2 Gaskets
6 Stainless self-tapping screws
Tools required
Phillips screwdriver
Clean rag
ATTENTION! Service repair to the spa and/or heater should be performed by
a qualified technician or licensed
electrician. These instructions must be provided to the person performing the
work.
Read this entire instruction prior to starting work. If you do not
understand these instructions or are unable to perform
the steps required to replace the manifold assembly, STOP! and contact
your heater provider for assistance.
ATTENTION! Product damaged by incorrect installation, alteration or freeze damage is not covered under warranty
Step 1 Accessing heater
A. The spa water must be drained to perform this repair.
B. Completely disconnect power to spa by turning off the spas electrical
breaker
C. In addition to removing the plumbing hoses from the heater, you may
also need to disconnect the electrical cord from the spa control
IT IS IMPORTANT to mark, take photos and note where and how wires and
plumbing hoses are connected to accurately reconnect in step #4. Incorrect
placement of wiring or plumbing hoses may lead to spa system or heater
malfunction, circuit board damage, water leaks and will pose a potential
hazard to the spa user.
Step 2 Removing existing manifold (Refer to Dia. 1 for item and
location)
A. Remove 6 stainless screws from existing manifold with a Philips
screwdriver
B. Pull to remove manifold from heater tubes
C. Discard existing gaskets and wipe tubing clean with a rag
D. Do not loosen or remove “Hex Screws” from foot bracket (DIA. #1}
Step 3 Installing new manifold with gaskets
Inspect that all components are clean and grease free prior to assembly
A. Dry fit new gaskets into manifold body then insert tubes (Dia.#1).
Caution, do not apply lubricant or sealant on gaskets or tubing. The manifold
is universal and can be placed either direction.
B. Lay down the rag and place heater on end pushing against ground to
keep manifold in place while inserting the stainless screws through Foot
Bracket and into the pre-drilled holes and tighten (Dia .#2).
C. To insure an expert seal, hand tighten screws in the recommended
harmonic pattern (DIA #3) until snug.
WARNING! Using a drill driver may apply too much torque and strip out the
manifold holes voiding warranty
Step 4 Re-installing heater and testing for leaks
A. Place heater and reconnect water supply hoses and electrical in the
same fashion as removed in step 1 (use your notes and photos).
B. Fill spa and turn power supply on at the breaker.
C. Program the spa heater pump on and confirm water flow through heater.
D. Inspect for leaks coming from new heater manifold.
Trouble shooting manifold leaks
The same manifold can be removed and reinstalled with care. Leaks can be
caused by dented or bent tube ends, tubes not completely inside manifold,
loose screws, debris between tube and gaskets, lubricants placed on tubes.
