CTC Union EcoAir 500M Manual

Providing sustainable energy solutions worldwide
162 105 54-1 2015-08-21
Installation- and Maintenance Manual
CTC EcoAir 500M
Modulating air/water heat pump

Installation and Maintenance Manual
CTC EcoAir 500M
Modulating air/water heat pump
162 105 54-1 2015-08-21

4
CTC EcoAir 500M
General Information
No liability is accepted for any misprints. We reserve the right to make design changes.
Quick reference
Fill in the information below. It may come in useful if anything should happen.
Product: Manufacturing number:
Installer: Name:
Date: Tel. no.:
Electrical installer: Name:
Date: Tel. no.:
Table of Contents
GENERAL INFORMATION
Checklist _____________________________________________________________________ 6
Important to remember! _____________________________________________ 7
Safety Instructions _____________________________________________________ 8
1. Technical data CTC EcoAir 500M _______________________ 9
1.1 Sound pressure data________________________________________ 9
1.2 Dimensional drawing ______________________________________ 10
1.3 Refrigerant system_________________________________________ 11
1.4 Operating range ____________________________________________ 12
1.5 Component location_______________________________________ 14
2. Installation__________________________________________________________ 18
2.1 Important to remember___________________________________ 18
2.2 Delivery includes____________________________________________ 18
2.3 Placement of the heat pump____________________________ 19
2.4 Preparation and drainage _______________________________ 20
2.5 Condensation water_______________________________________ 21
3. Pipe installation _________________________________________________ 22
3.1 Pipe connection ____________________________________________ 22
3.2 Example of connection to CTC EcoZenith i250 L 23
3.3 Circulating pump – heat carrier ________________________ 24
3.4 Pressure differential diagram CTC EcoAir 510M__ 24
3.5 Pressure differential diagram CTC EcoAir 520M__ 24
4. Electrical installation _________________________________________ 25
4.1 Electrical installation 400 V 3N~ ______________________ 25
4.2 Communication connections ___________________________ 25
4.3 Compressor heater ________________________________________ 25
4.4 Wiring diagram 400 V 3N~ (A3)________________________ 26
4.5 Wiring diagram 400 V 3N~ (A4)________________________ 28
4.6 Parts list_______________________________________________________ 29
4.7 Sensor Data__________________________________________________ 30
5. First start____________________________________________________________ 31
6. Operation and Maintenance______________________________ 32
7. Troubleshooting/appropriate measures ___________ 34
Declaration of Conformity________________________________________ 35

5
CTC EcoAir 500M
General Information
The Complete System
CTC EcoAir 500M
CTC EcoAir 500M is a modulating air source heat pump
that takes heat from the outside air and supplies it to the
existing heating system in the house. The heat pump
works with outdoor temperatures down to -22°C.
The CTC EcoAir 500M has been designed to operate
with high efficiency and low noise levels. The heat pump
has integrated hot gas defrosting which keeps the
evaporator coil free from ice to maintain high efficiency.
The CTC EcoAir 500 series consists of the models:
• CTC EcoAir 510M 3x400V
• CTC EcoAir 520M 3x400V
CTC EcoZenith i250
The CTC EcoZenith i250 is fully designed to work
with the CTC EcoAir 500M outdoor air heat pump.
Controlling the heat pump and charge pump is
maintained entirely by CTCEcoZenithi250.
CTC EcoAir 500M must be connected to CTC
EcoZenith i250
The CTC EcoZenith i250 is a complete tank which
meets your home’s heating and hot water requirements.
It has a built-in immersion heater giving a total of 15 kW
and is equipped with a motorised mixing valve which
ensures correct and even temperatures are supplied
to your heating system. It also has a built-in circulation
pump for connection to the heat pump.

6
CTC EcoAir 500M
General Information
General Information
Checklist
The check list must be completed by the installer.
• If service is needed, you may be required to provide this document.
• Installation must always be done according to the installation and maintenance instructions
• Installation must always be carried out in a professional manner
Following installation, the unit must be inspected and functional checks performed as
indicated below:
Pipe installation
Heat pump filled, positioned and adjusted in the correct manner according to the instructions.
The heat pump should be positioned so that it can be serviced
Capacity of the charge/radiator pump (depending on type of system) for the flow required.
Open radiator valves (depending on type of system) and other relevant valves.
Tightness test
Bleed the system
Check proper operation of the requisite safety valves
Action taken to deal with condensation water
Electrical installation
Power switch
Correct tight wiring
Requisite sensors fitted
Heat pump activated and started
Accessories
Information for the customer (adapted to current installation)
Start-up with customer/installer
Menus/controls for selected system
Installation and maintenance manual supplied to the customer
Check and filling, heating system
Information on fine adjustments
Alarm information
Functional test of safety valves fitted
Information on procedures for fault registration
______________________________________ ______________________________________
Date / Customer Date / Installer

7
CTC EcoAir 500M
General Information
Important to remember!
Check the following points in particular at the time of delivery and installation:
• The product must be transported and stored in an upright position.
• Remove the packaging and check before installation that the product
has not been damaged in transit. Report any transport damage to the
carrier.
• Place the product on a solid foundation.
• The CTC EcoAir 500M has a factory-fitted condensation water tray
where the condensation water is conducted to a stone curb, surface
water gully, down pipe or other drainage. You should therefore consider
the position of the product.
• If the condensation water pipe is not used, the foundation must be such
that condensing water and melted snow can drain into the ground.
Make a 'stone curb' under the heat pump. Remove 70-100 cm and fill
up with crushed stones to obtain the best possible drainage.
• The outdoor unit must stand level – check with spirit level.
• Remember to leave a service area of at least 2 m in front of the
product.
• Flexible hoses should be installed closest to the heat pump. Outdoor
pipes should be thoroughly insulated with weather-proof insulation.
• Ensure that pipes used between the heat pump and the heating system
are of adequate dimensions.
• Ensure that the circulation pump has sufficient capacity to pump the
water to the heat pump
• CTC EcoAir 520M must not be powered through the CTC EcoZenith
i250. The installation should be preceded by an omnipolar switch.
• CTC EcoAir 500M must be connected to CTC EcoZenith i250
• CTC EcoZenith 250 must have software version 20150821 or later.
!If these instructions are not followed when installing, operating and maintaining
the system, Enertech’s commitment under the applicable warranty terms is not
binding

8
CTC EcoAir 500M
General Information
Safety Instructions
The following safety instructions must be observed when handling, installing
and using the product:
• Close the omnipolar switch before doing any work on the product.
• If there already is a ground fault breaker, the CTC EcoAir must also be
fitted with its own ground fault breaker with on/off delay.
• The product must not be flushed with water.
• When handling the product with a hoist ring or similar device, make
sure that the lifting equipment, eyebolts etc. are not damaged. Never
stand under the hoisted product.
• Never jeopardise safety by removing bolted covers, hoods or similar.
• Never jeopardise safety by deactivating safety equipment.
• Any work done on the product’s cooling system should be done by
authorised personnel only.

9
CTC EcoAir 500M
General Information
1. Technical data CTC EcoAir 500M
!Note: In case of deviations, the product's data plate
applies. When servicing always check the product's
data plate for correct refrigerant quantity.
* The sound specified should be regarded as an indication since the level
is affected by the compressor’s and the fan’s speed, as well as the
surroundings. The upper value corresponds to 100% reflecting ground and
walls (smooth concrete).
1.1 Sound pressure data
CTC EcoAir 510M 53.5 dB(A) 30-33 dB(A) 24-27 dB(A)
CTC EcoAir 520M 55.4 dB(A) 32-35 dB(A) 26-29 dB(A)
CTC EcoAir 510M CTC EcoAir 520M
400V 3N~ 50Hz
kW 0.47 / 2.28 0.9 / 3.8
kW 2.5 / 6.33 4.9 / 10.4
COP 1) 5.31 / 2.78 5.24 / 2.71
A 8.5 19.5
A 2.7 A 4.9
L 1.9 2.8
kg 2.2 2.7
bar 31
bar 2.5
mm 1080 x 1245 x 545 1180 x 1375 x 610
Inverter scroll / PVE FV50S
m3/h 3800 6200
rpm
W 73 170
kg 126 186
dB(A) 55.9/53.5 60.5/55.4
Electrical data
Input power 1)
Output power 1)
Rated current 2)
Max start current
Water volume
Refrigerant quantity (R407C)
High pressure switch
Max. operating pressure water (PS)
Dimensions (H x W x D)
Compressor / Oil type
Air flow 100%
Fan speed Modulating
Fan, max power
Weight
Sound power 3)
1)
At 35°C water temperature. +7 @ 20 rps / -7 °C @ 90 rps. According to EN 14511.
2)
At 120 rps (from factory max 90 rps). Incl. Grundfos UPM GEO 25-85 charge pump.
3)
Sound power level in accordance with EN12102/ISO3741 at test conditions A7 W47/55 and A7 W30/35
Sound power Sound pressure 5 m * Sound pressure 10 m *

10
CTC EcoAir 500M
General Information
1.2 Dimensional drawing
CTC EcoAir 510M CTC EcoAir 520M
A 486 549
B 1155 1285
C 1245 1375
D 188 188
E 1080 1180
F 301 306
G 476 476
H 451 551
I Ø28 Ø28
J 80 76
K 530 610
L 10 33
42
A
B
C
D
E
H
L
GF
J
I
K