Chat with Sunniva on WhatsApp
Skip to Content
Centralised hot water
SE-AH Series · Core & Elite

Commercial heat pumps for centralised hot water

Splendid for centralised hot water systems, generating hot water up to 55 °C and a maximum of 60 °C. The ideal hot-water solution for hotels, hospitals, resorts, boarding schools and apartment complexes.

Sunniva Commercial Heat Pump
Capacity
3.5–200kW
14 models, all published
Hot water to
60°C
rated at 55 °C
COP up to
4.2
at the rated condition
Rated down to
5°C
air temperature

Is this the right range for you?

Two minutes here saves a wasted quotation. The boundaries below are the published ones, not sales judgement.

Yes, if all of these are true

  • You need 1,000 litres a day or more at one place
  • 55–60 °C is enough for your hot water
  • Your coldest design morning is above about 5 °C
  • You are burning diesel, LPG, PNG or electricity for hot water today

Look at another range if

Applications

Where this range is normally installed.

Hotels
Resorts
Hospitals
Boarding schools
Apartment complexes

Key features

What is inside the cabinet, and why each of them is there.

American Copeland / Panasonic scroll compressor

The compressor is the machine. These are the two brands that hold their output through a decade of Indian duty cycles.

Automatic defrosting

Optional. Keeps output up through a damp winter morning instead of icing the coil and stalling.

Smart-touch control

Set point, schedule and fault history on the unit, without a laptop and without a service call.

Anti-corrosive coating

Coastal air and cooling-tower drift are what actually kill an outdoor coil.

Low noise and vibration

It usually sits on a terrace above occupied rooms. That is a design constraint, not a footnote.

HP / LP safety and stable running

High and low pressure cut-outs, and a control that rides through a voltage dip rather than locking out.

Models in this range

Every figure below is taken from that model’s own technical data sheet, at its rated test condition. Full performance at every published ambient is in the PDF.

ModelHeating capacityCOP Hot water outputDimensions (L×W×H)
SE-AH-4M3.5 kW 4.12105 LPH 930 × 350 × 550 mm Datasheet ↓
SE-AH-5M5 kW 4.12149 LPH 935 × 400 × 550 mm Datasheet ↓
SE-AH-7M7.4 kW 4215 LPH 1005 × 350 × 620 mm Datasheet ↓
SE-AH-10M9.3 kW 4280 LPH 1110 × 400 × 750 mm Datasheet ↓
SE-AH-19U19 kW 4.2540 LPH 800 × 800 × 1110 mm Datasheet ↓
SE-AH-25U25 kW 4.15715 LPH 800 × 800 × 1110 mm Datasheet ↓
SE-AH-37U37 kW 4.21070 LPH 1450 × 890 × 1110 mm Datasheet ↓
SE-AH-50U50 kW 4.151450 LPH 1450 × 890 × 1110 mm Datasheet ↓
SE-AH-60U60 kW 4.21290 LPH 1450 × 750 × 1150 mm Datasheet ↓
SE-AH-90V90 kW 4.152580 LPH 2250 × 1090 × 1785 mm Datasheet ↓
SE-AH-100V100 kW 4.22870 LPH 2250 × 1090 × 1785 mm Datasheet ↓
SE-AH-140V140 kW 4.14020 LPH 2200 × 2100 × 1800 mm Datasheet ↓
SE-AH-180V180 kW 4.155160 LPH 2200 × 2100 × 1800 mm Datasheet ↓
SE-AH-200V200 kW 4.15740 LPH 2200 × 2100 × 1800 mm Datasheet ↓

Benefits

What this range does for the building, rather than what is in the box.

Centralised to 60 °C

One plant instead of a geyser in every room — less equipment to buy, less to service, one thing to monitor.

Silent

No flue, no burner, no fuel delivery. A terrace plant room next to guest rooms is a normal installation.

Less maintenance

No combustion means no burner service, no flue cleaning and no fuel handling.

Where “up to 75 %” comes from

Our own commercial calculator, at its default 6,000 litres a day at 55 °C: the heat pump costs about ₹560 a day to run, an electric geyser ₹2,182 and a diesel boiler ₹2,492. That is 74 % against the geyser and 77 % against diesel — so the claim is, if anything, conservative. Put your own tariff and your own litres into the calculator and it will tell you your number rather than ours.

74 %
cheaper than an electric geyser
77 %
cheaper than a diesel boiler
₹5.4 lakh
saved a year, at 6,000 L/day

Size it yourself, in about a minute

Pick your building type, set the occupancy, and the calculator returns the kilowatts, the storage tank, the Sunniva model that covers it at your winter temperature, and what it costs to run against what you burn today.

Built to order

Options on this range, quoted per order. None of them is the standard build and none is included in the model table above — ask at enquiry and have it confirmed on the order acknowledgement.

  • Water connection — Coupling type to suit the site — threaded, flanged or grooved.
  • Casing — Stainless steel or powder-coated finish.
  • Circulation pump — Can be built into the unit instead of being fitted in the plant room.
  • Condenser — Stainless steel or copper, in place of the standard build.

And what every Sunniva heat pump gives you

True of the whole range, not just this one.

  • Up to 75 % off water heating against electric, LPG or PNG
  • Quick payback and strong return on investment
  • The longest product life of any common water-heating technology
  • Silent operation
  • Hot water round the year, independent of sunlight
  • Lower carbon emissions
  • Negligible maintenance cost
  • Saves space against a boiler or a solar-thermal field

Common questions

The ones our engineers are actually asked.

How much roof or terrace space do I need?
A 25 kW machine is 800 × 800 mm on plan; a 200 kW machine is 2,200 × 2,100. Add a metre in front of the coil for air, and half a metre behind. Every datasheet carries the clearance drawing and the plinth size for that model.
What happens on a cold winter morning?
Capacity falls as the air cools — that is physics, not a defect, and every Sunniva datasheet publishes the figure at 20, 15, 10 and 5 °C rather than quoting only the best one. Below about 5 °C the SE-AH range runs out of published data and the EVI range takes over, which is why the calculator switches ranges on its own as you drag the temperature down.
Do I still need a storage tank?
Yes, and it is not optional. A heat pump is sized on the day's energy, not on the peak draw — the tank rides the morning rush while the machine works steadily. Two to six times the hourly output is the rule, and the calculator sizes it alongside the machine.
Can I run more than one machine?
Usually you should. Two smaller machines often fit a duty far more closely than one large one, and they let you run at part load between peaks. The calculator searches every combination and shows the alternatives, including an optional standby unit.
What electrical supply does it need?
Three-phase, 380–415 V. Each datasheet states the rated current, the MCB and the cable size for that model.

Manuals and related ranges

Performance figures are published test data at the stated conditions and are not a guarantee for a specific installation. Draw-off pattern, pipe runs, water quality, static head and local code all affect the final selection — confirm with Sunniva Encon LLP before ordering.

© 2026 Sunniva Encon LLP. The design and code of this page are our copyright. Results are indicative and offered in good faith — the method is set out above. Confirm the final selection with us before ordering.