V35ZA Hydrocarbon Hydronic Heating Air Sourced Heat Pump

For heating up to about 300sqm floorspace for panel radiators

For heating up to about 350sqm floorspace for concrete slab heating

Our V35ZA Hydronics Heat Pump is not an "off-the-shelf" import, it is unique and purpose-built to heat water for hydronic heating systems. The cabinet and refrigeration system is pre-assembled to our design. We finish them locally, charge them with Hydrocarbons, then fine-tune and put each heat pump through quality assurance testing.

Over the years we have developed our own inhouse heatpump tuning/monitoring rig.
Every machine that leaves our factory has been fine-tuned for its application, has been "run-in" for hours, and is shipped with its own performance guarantee. When it is delivered and installed, it will work faultlessly from day one.

The V35ZA can heat water to a maximum of 55^oC, (recommend design for 55/45^oC for new radiator installations).
The dual compressor V35ZA can be spanned across 2 phases if you have 2 phase supply, or across 2phases of a 3ph supply.

Technical data:

• Nominal input power range: 5.6kW - 8.4kW (incl 700W circ pump)
• Rated output: 24kW @ LWC 45C, COP 3.7
• Voltage: 220V (can be spanned across 2ph)
• 'V'-shaped evaporator for max efficiency
• Pipe size: DN32
• Max outlet water temp: 55^oC
• Environment range: -19^oC to +45^oC
• Compressor: 2x 4.0HP Copeland ZR47K3-PFJ-522 scroll
• Refrigerant: Hydrocarbons
• Fans: 2x Zeihl Abegg FN050-6EK.4F.V7P1
  500mm, 300W, 6000m³/hr airflow (each)
• Weight: 250Kg
• Sound Level: 60dBa
• Dimension: 1150x935x1650mm
• Warranty: 3yrs *for all systems delivered after Jan 2017
  Subject to suppliers sizing and installation guidelines being followed
  *(there may be a travel charge for on-site service if there is a significant distance)

We use Natural Organic hydrocarbons:

Our hydronic heat pumps use hydrocarbon instead of traditional refrigerant, a highly efficient blend of R290 and R170, propane and ethane. When switching from R22, R502, R407C, and R404A power bills can be dramatically reduced, and the wear and tear on the refrigeration system can also be minimised.

It's the Natural Organic solution

Download data sheet

ZA Hi-Tech Low Noise Owlet axial fans

Improved airflow and up to 15% higher fan efficiency
Especially recommended for installations where noise could be an issue, the ZA model with super-efficient low-noise Ziehl-Abegg "Owlet" fans.

Model

Body

Speed

Conn's

Head

Watts

Flow
Rate

R.R.P.

Comment

>GPD25-6<

C.I.

3 sp

25mm

2.5m

100/70/55

1.0L/s@1.8m

hydronics multi-zone pump(s)

>GPD25-8<

C.I.

3 sp

25mm

8m

245

1.4L/s@5m

hydronics multi-zone pump(s)

>GPD25-16<

C.I.

1 sp

32mm

12.5m

700

2.5L/s@5m

V35ZA primary pump (close-coupled buffertank)

With the V35ZA we recommend using one of specially designed Stainless Steel multi-port 200Lt or 400Lt buffertanks.

Installing a buffertank on a hydronic heat-pump allows for zoning without causing backpressure or flow-rate fluctuations which may trip the heat-pump.

Hydronic Buffertanks also reduce short-cycling which increases efficiency.

With a heat-pump hydronic system, heat energy is always readily available so a larger buffertank is not necessary and in fact can reduce efficiency. (one reason why we don't recommend multiple potable hot water heat-pumps for hydronics)

Simplified rules for sizing your heatpump for hydronic heating

- for MAXIMUM EFFICIENCY AND SERVICE LIFE!

• Calculate how many kW are required
• Look at the climatology of the location to establish the duration of 0^oC to +4^oC. Don’t just look at the extreme temps, look at the mean overnight temp and duration
• If the ambient air temp rarely dips below +4^oC or does so for short periods then you can use this simple calculation...
      3.3 x electricity input kW = heatpump output heat kW to size the heatpump.
• If the mean overnight ambient air temp is between 0^oC and +4^oC change the calculation to
      2.2 x electricity input kW = heatpump output heat kW to size the heatpump.
• A more powerful heatpump will raise the water temp more rapidly so it will cycle off before it needs to defrost, thereby maintaining a higher COP and efficiency.
• Warranty service may be refused if our sizing guidelines are ignored.

MODEL

POWER

COMPRESSOR

AIR DISCHARGE

5 STAR CAPABILITY

QTY

Brand Model

(5 star energy construction rating)

220V 1ph

>> SX-06

220V, 1ph

1x

Mitsubishi Rotary RN145V, 1.0HP

1x fan - side

up to 48sqm radiators or 60sqm slab

>> SX-08

220V, 1ph

1x

Mitsubishi Rotary RN222VHFMC, 2.5HP

1x fan - side

up to 67sqm radiators or 85sqm slab

>> SX-11CCZA

220V, 1ph

1x

Copeland ZR28K3E-PFJ-522, 2.33HP

2x fan - side

up to 90sqm radiators or 110sqm slab

>> SX-13CCZA

220V, 1ph

1x

Copeland ZR34K3E-PFJ-522, 2.83HP

2x fan - side

up to 100sqm radiators or 130sqm slab

>> SX-15CCZA

220V, 1ph

1x

Copeland ZR42K3E-PFJ-522, 3.5HP

2x fan - side

up to 120sqm radiators or 150sqm slab

>> SX-17CCZA

220V, 1ph

1x

Copeland ZR47K3E-PFJ-522, 4.0HP

2x fan - side

up to 140sqm radiators or 170sqm slab

>> SX-18ZA

220V, 1ph

1x

Copeland ZW52KAE-PFS-522, 4.5HP

2x fan - side

up to 180sqm slab only (non frost area)

>> SX-19ZA

220V, 1ph

1x

Copeland ZR61KC-PFZ-522, 5.0HP

2x fan - side

up to 190sqm slab only (non frost area)

220V 1ph or 2ph

>> SX-20BZA

220V 1 or 2ph

2x

Copeland ZR28K3E-PFJ-522, 2.33HP

2x fan - top

up to 160sqm radiators or 200sqm slab

>> SX-24ZA

220V 1 or 2ph

2x

Copeland ZR34K3E-PFJ-522, 2.83HP

2x fan - top

up to 200sqm radiators or 240sqm slab

V-Models are recommended for heavy frost-prone areas

>> V20ZA

220V, 1 or 2ph

2x

Copeland ZR28K3E-PFJ-522, 2.33HP

2x fan - V evap, top

up to 160sqm radiators or 200sqm slab

>> V25ZA

220V 1 or 2ph

2x

Copeland ZR34K3E-PFJ-522, 2.83HP

2x fan - V evap, top

up to 210sqm radiators or 250sqm slab

>> V30ZA

220V 1 or 2ph

2x

Copeland ZR42K3E-PFJ-522, 3.5HP

2x fan - V evap, top

up to 250sqm radiators or 300sqm slab

>> V35ZA

220V 1 or 2ph

2x

Copeland ZR47K3E-PFJ-522, 4.0HP

2x fan - V evap, top

up to 300sqm radiators or 350sqm slab