Rinnai 250L Mains Pressure Indoor Stainless Steel Hot Water Cylinders

Product Overview

This document provides technical specifications and dimensional data for Rinnai's 250L Mains Pressure Indoor Stainless Steel Hot Water Cylinders.

Available models include:

2kW - MS25055D020
3kW - MS250550D30
2kW - MS250550D20A (ART)
3kW - MS250550D30A (ART)

Dimensions and Diagram Description

The diagram illustrates the physical layout and key dimensions of the cylinder. It shows a cylindrical tank with a diameter of Ø550 mm and a height of 1410 mm. Various connection points are marked: 'A' for Cold and Hot water inlets/outlets (DN20 3/4" BSP), 'B' for the TPR valve (DN15 1/2" BSP), and 'C' for the Eco connection (DN15 1/2" BSP). The diagram also indicates internal components labeled 'E' which relate to the electrical heating elements. Dimensions provided include vertical measurements from the base to connection points (e.g., 460 mm, 325 mm, 1080 mm, 310 mm) and overall height (1730 mm). A top view shows angular positions of connections (40°, 45°). Side views show a width of 550 mm and projections of 50 mm.

Standard Connection Sizes

Connection	Size	Type
(A) Cold	DN20	3/4" BSP
(B) TPR	DN15	1/2" BSP
(C) Eco	DN15	1/2" BSP
(D) Hot	DN20	3/4" BSP

Electrical Specifications

Model	Electrical Configuration	Amperage
2kW - MS25055D020	2 x 2kW	2 x 8.7 Amps = 17.4 Amps
3kW - MS250550D30	2 x 3kW	2 x 15.7 Amps = 31.4 Amps
2kW - MS250550D20A	2 x 2kW	2 x 8.7 Amps = 17.4 Amps
3kW - MS250550D30A	2 x 3kW	2 x 15.7 Amps = 31.4 Amps

Construction Details

Component	Material
Outer Tank	Galvanised Steel
Inner Tank	2304 duplex stainless steel
Insulation	High density expanded polyurethane foam

General Specifications

Specification	Value	Status
Water Pressure (TPR)	850 kPa	Supplied
Water Pressure (PLV)	500 kPa (approx.)	NOT SUPPLIED
Water Pressure (PRV - Cold Water)	700 kPa (approx.)	NOT SUPPLIED
Weights (empty/full)	41 kg / 291 kg

Document Information

Designed:	[Not Specified]
Drawn:	KS
Scale @ A3:	20:1
Scale @ A4:	30:1
Date:	19/04/22
Rev:	[Not Specified]

	Rinnai Mains Pressure Indoor Stainless Steel Coiled Cylinders: Owner and Installer Guide This guide provides comprehensive information for Rinnai mains pressure indoor stainless steel coiled cylinders, covering installation, maintenance, safety, specifications, and warranty details for various models including thermosiphon and twin coil types.
	Rinnai Smart Cylinder Owner and Installer Guide - Low-Medium Pressure Stainless Steel Comprehensive guide for Rinnai Smart Cylinders (low-medium pressure, indoor stainless steel). Covers installation, operation, maintenance, troubleshooting, and warranty. Essential reading for homeowners and installers.
	Rinnai Hot Water Cylinders, Heat Pumps, and Boil & Brew Specification Guide Comprehensive specification guide detailing Rinnai's extensive range of hot water cylinders, including mains pressure, low pressure, and smart models, alongside hot water heat pumps and Boil & Brew units. Features product specifications, ordering information, and technical details for residential and commercial applications.
	Rinnai Mains Pressure Indoor/Outdoor Enamel Cylinders: Owner and Installer Guide Comprehensive guide for Rinnai Mains Pressure Indoor/Outdoor Enamel Cylinders, covering installation, maintenance, troubleshooting, specifications, warranty, and safety information.
	Rinnai ReadyFit 135/180 L Cylinders Installation Guide Installation guide for Rinnai ReadyFit 135/180 L mains pressure indoor/outdoor enamel hot water cylinders. Details product description, specifications, included components, dimensions, and warranty information.
	Rinnai RU199e, RU180e, RU160e, RU130e Outdoor Condensing Tankless Water Heater Specifications Detailed specifications and features for Rinnai's RU199e, RU180e, RU160e, and RU130e series of outdoor condensing tankless water heaters, including technical data, dimensions, and performance curves.
	Rinnai RXP199i & RXP160i Condensing Tankless Water Heater Specifications and Features Detailed overview of Rinnai's RXP199i and RXP160i high-efficiency condensing tankless water heaters, including technical specifications, installation options, warranty, and performance curves.
	Rinnai CX199iN Commercial Hybrid Tankless Water Heater Engineering Specifications Detailed engineering specifications for the Rinnai CX199iN commercial hybrid tankless water heater system, including BTU input, capacity, efficiency, safety features, and warranty information.