Cooling & Heating Solutions for Farms, Hotels & Plants
Description
Product Description
An upgraded air-source heat pump water heater designed for high water consumption scenarios. It adopts dual-mode operation: direct heating in one pass + automatic circulating reheating. Tap water is directly heated to 55–60℃(default 55℃at factory) by the main unit and then stored in an insulated water tank. When the water temperature in the tank drops, circulating reheating starts automatically to avoid energy waste caused by repeated circulation heating. This is the RMDRNZL Series, including models 05SR/10SR/20SR/25SR.
- Rated hot water output: 420L/h – 1930L/h
- Suitable for: 100–500 people
- Operating ambient temperature: -10℃– 45℃
- Waterproof rating: IPX4
- Rated water pressure: 0.7MPa
Core advantage
- Adopts original variable flow technology to ensure constant hot water supply pressure, suitable for high-rise buildings and multiple water points with excellent water output experience.
- Higher efficiency of direct heating, reducing heating time compared with circulation type and achieving lower energy consumption in high water consumption scenarios.
- Equipped with quick defrosting function, providing better heating performance and high stability in low temperature and high humidity environments.
- Real-time water temperature monitoring with automatic circulating reheating when temperature is insufficient, realizing allweather constant temperature hot water supply without manual operation.
- Compact unit structure with reasonable pipeline connection design, small installation footprint and convenient capacity expansion through multiple units combination.
Usage scenario
Large-scale factory and enterprise collective dormitories, high-end hotels, public baths, hospital ward buildings, large school campuses, staff living centers in industrial parks, and other all-weather water scenarios with large water consumption and high requirements for constant hot water temperature and water pressure.
Q&A
Q1: What is the core difference between direct-heating circulation type and ordinary circulation type, and which is more energysaving?
A1: The core difference lies in the heating mode. The ordinary circulation type heats water in the tank repeatedly, while the directheating type heats tap water to the set temperature in one pass and only reheats when the water temperature drops. The directheating circulation type is more energy-saving in large water consumption scenarios, and the energy consumption difference becomes more obvious as the water consumption scale increases.
Q2: Can the hot water outlet pressure be adjusted manually on this model?
A2: Yes. Equipped with variable flow technology, the system flow can be adjusted via the control panel according to actual water demand, achieving stable control of outlet pressure to meet pressure requirements of different floors and water points.
Q3: Does the matching insulated water tank have high heat loss, and will the hot water cool down quickly?
A3: The matching insulated water tank adopts a high-density insulation layer with extremely low heat loss. The unit also features real-time water temperature monitoring and will automatically reheat when the temperature is below the set value, so the hot water will not cool down rapidly.
Q4: Are the installation requirements of this model high, and does it occupy a large area?
A4: Installation requirements are low; it can be installed on rooftops, ground, or equipment floors. The unit is integrated and requires no separate heating buffer device, resulting in a smaller installation footprint compared with ordinary circulation units for the same water consumption.
Equipment Parameter
| Product Model | RMDRN-02SR | RMDRN-03SR | RMDRN-03SR | RMDRN-05SR | |
| Rated Hot Water Output | 420L/h | 900L/h | 1650L/h | 1930L/h | |
| Rated Heating Capacity | 18KW | 39KW | 72KW | 87.5KW | |
| Rated Input Power | 4.2KW | 8.8KW | 18.6KW | 20.8KW | |
| Maximum Input Power | 6.9KW | 10.5KW | 27.6KW | 29.4KW | |
| Rated Input Current | 8A | 17A | 34A | 41A | |
| Maximum Input Current | 13A | 26A | 50A | 61.3A | |
| Water Outlet Temperature | Rated Temp.: 55℃ / Max. Temp.: 60℃ | ||||
| Rated Power Supply | 380V 3N-/50Hz | ||||
| Waterproof | Ipx4 | ||||
| Ambient Temp. | -10℃~45℃ | ||||
| Noise Level | ≤55dB(A) | ≤60dB(A) | ≤60dB(A) | ≤62dB(A) | |
| Main Unit Connection Size | DN25 | DN40 | DN50 | DN50 | |
| Cold Water Inlet | DN20 | DN25 | DN40 | DN40 | |
| Unit Weight | 130kg | 280kg | 590kg | 770kg | |
| Overall Size | L | 752mm | 1430mm | 1850mm | 2000mm |
| B | 752mm | 735mm | 1000mm | 1100mm | |
| H | 1100mm | 1100mm | 1900mm | 1900mm | |
| Applicable Users | 100~150 persons | 150~200 persons | 300~400 persons | 400~500 persons | |
|
Notes: 1. The above data is tested under conditions of dry bulb temperature 20℃, wet bulb temperature 15℃, inlet water temperature 15℃, and outlet water temperature 55℃. 2. With technological advancement, our products are continuously improved and updated. Parameters are subject to change without prior notice, and the data on the product nameplate shall prevail. |
|||||
FAQ
Can you accept small quantities?
Yes, accept small quantity, fast delivery
Do you have pre-shipment inspection procedures?
Yes, we always test the products before delivery.
Can I take samples for testing?
Yes, samples can be sent for testing before bulk ordering.
When is the delivery time?
Inventory orders within 7-15 days, for oem and odm orders, the specific time depends on the actual situation.
What are the terms of payment?
Wire transfer or letter of credit, Western Union, Alipay, etc.
What is the minimum order quantity?
It depends on the product.
Direct Heating Circulating
You still doubt it? First get samples contact us!
subcategory
keyword
Leave Message
We will contact you within one working day. Please pay attention to your email.
Quick Link
Contact Us
Address: Xinzhi Industrial Park, Luoyang City, Henan Province, China
Production Base: Heshan City, Guangdong Province, China
WhatsApp: +86 188 1157 5304
Tel: +86 188 1157 5304
Email: info@rmdhvac.com
