User manual for MTS GL series electric mini tank water heaters, covering installation, safety, operation, maintenance, and troubleshooting.
This manual provides the installer and owner with all necessary information to safely install, operate, and maintain the MTS GL 2.5, GL 4, and GL 6+ electric mini‑tank water heaters. It includes safety precautions, wiring and grounding instructions, and detailed diagrams of the heater components.
Key sections cover technical specifications, mounting options, pipe connections, routine maintenance, troubleshooting of common problems, and warranty information. The guide is intended for qualified installers and end‑users who need clear step‑by‑step instructions.
| Capacity | 2.75 gal (GL 2.5), 3.85 gal (GL 4), 7.0 gal (GL 6+) |
|---|---|
| Voltage | 110/120 V |
| Power | 1500 W |
| Maximum Water Pressure | 150 psi |
| Weight | 15.5 lb (GL 2.5), 17.3 lb (GL 4), 29.5 lb (GL 6+) |
| Amperage | 12.5 A |
| Phases | 1 |
Verify that the power supply is on and working, and make sure the reset button is pushed in; also check for a possible plumbing crossover.
Yes, national plumbing codes require a drain pan for any water‑heater installation.
Use 12 AWG wire on a minimum 20 amp branch circuit for the GL 6+ heater.