Large scale resistance hot water module boiler

1. Product Definition & Heating Principle

2. Complete Machine Core Structure

1. Independent Heating Module Unit
   Each single module has a standard power of 150kW; two or more modules are integrated into one cabinet. Every module is equipped with an independent touch-screen PLC control system. Two heating systems operate separately without mutual interference, and maintenance of one module will not cut off the whole hot water supply.
2. Heating & Heat Exchange Main Body
   The inner tank is a carbon steel tank either atmospheric or pressure-bearing, fitted with 316L anti-corrosion heating tubes. The outer layer is wrapped with high-density aluminum silicate thermal insulation to minimize heat loss. Standard supply water temperature: 85℃, return water temperature: 65℃; water temperature is adjustable arbitrarily between 30℃ and 95℃.
3. Intelligent Electric Control System
   Large LCD touch panel for local automatic constant temperature control. Standard built-in remote cloud monitoring module, supporting mobile APP remote start/stop, fault push notification, and multi-protocol communication to connect with building or factory central control systems.
4. Heat Dissipation & Safety Components
   Electric control cooling fans are installed on the side of the unit. Fully integrated safety sensors, earth leakage circuit breakers, pressure/water level interlock protection components.

3. Core Product Advantages

1. Zero-emission Eco-friendly, Compliant with Green Low-carbon Policies
   No fuel combustion in operation, generating no smoke, NOₓ, CO or solid residues. Flues, chimneys and fuel storage warehouses are unnecessary. Compatible with photovoltaic and wind green power, perfectly suitable for clean energy heating renovation in industrial parks and urban areas without complicated environmental approval procedures.
2. Modular Flexible Capacity Expansion, Stable & Reliable Heating
   Parallel multi-module design with on-demand operation: only partial modules activate under low load to avoid power waste from oversized equipment.
   Modules serve as mutual backups. When one module shuts down for maintenance due to failure, the rest continue heating to provide 24-hour uninterrupted heating and hot water supply.
   Modules can be added in phases to reduce upfront equipment investment, matching the annual expansion demand of factories and residential communities.
3. Fully Automatic Unattended Operation, Intelligent Maintenance
   Full PLC logic control automatically adjusts output power according to outdoor temperature and pipeline return water temperature. Built-in cloud fault self-diagnosis sends real-time alarms for electric leakage, water shortage, overheating and other abnormalities. Supports scheduled start/stop and off-peak thermal storage operation to cut electricity bills by utilizing time-of-use tariffs.
4. Multi-dimensional Comprehensive Safety Protection (6 Major Interlock Protections)

• Earth leakage protection: full-unit earthing + leakage circuit breaker, instant power cut when short circuit happens.
• Ultra-low water level anti-dry burning protection: cuts heating power within 0.1 seconds if water is insufficient to protect heating tubes.
• Boiler over-temperature protection: automatic shutdown for cooling once water temperature exceeds the set threshold.
• Temperature sensor abnormality protection: forces unit shutdown upon probe failure.
• Abnormal power voltage protection: automatic power cut under unstable high/low voltage.
• Heating element phase loss protection: locks heating output when any three-phase power phase is missing.

5. Low Noise & Space-saving, Strong Installation Adaptability
   Operating noise ＜62 decibels, equivalent to daily conversation volume. Can be placed in indoor equipment rooms of residential blocks, hospitals and schools. Integrated cabinet-type all-in-one structure requires no complex civil construction; only maintenance clearance space is needed. Atmospheric models eliminate complicated annual boiler inspection formalities.
6. Low Operation & Maintenance Cost, Long Service Life
   Mature resistance heating tube technology with universal, easily accessible spare parts. No high-loss electronic components such as variable-frequency electromagnetic coils, leading to fewer fault points. Under softened water working conditions, heating tubes have a service life of 5–8 years. Daily maintenance only requires regular blowdown and limescale cleaning.

7. Electric Heating Atmospheric Hot Water Module Boiler
   Model Specifications	Design Power (kW)	Rated Current (A)	Design Voltage (V)	Rated Heat Generation (10⁴ kcal/h)	Hot Water Temperature (℃)	Transport Weight (kg)	External Dimensions (mm)
   DZRS0.18	180	270	380~500	15	85/65	75	700*700*1500
   DZRS0.24	240	360	380~500	20	85/65	120	1000*1200*1700
   DZRS0.35	360	540	380~500	30	85/65	260	1200*1000*1700
   DZRS0.48	480	720	380~500	40	85/65	330	1500*1500*1700
   DZRS0.58	580	870	380~500	50	85/65	600	1800*1700*1700
   DZRS0.7	720	1080	380~500	60	85/65	1300	3000*1800*1700
   DZRS1.05	1080	1620	380~500	90	85/65	1700	3600*2000*1750
   DZRS1.4	1440	2160	380~500	120	85/65	2600	3600*2100*1800
   DZRS1.75	1800	2700	380~500	150	85/65	3200	4000*2200*1800
   DZRS2.1	2160	3240	380~500	180	85/65	5500	4500*2200*1800