Ecotec EAS SERIES, EAS 70, EAS 1000, EAS 1200, EAS 1500 Installation & User Manual

...
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
1
INSTALLATION & USER MANUAL
Installation and maintenance guide
This manual is designed to provide the information necessary to correctly install and operate the Heat Pump.
The guide lists topics in the order that we, as manufacturers, recommend all installations and commissioning should be carried out.
All Ecotec Heat Pumps must be installed by a licensed, authorised or qualified heat pump installer. The Installer should be familiar with local building regulations, exacting Health and Safety Regulations and building control requirements where appropriate.
There are no refrigeration connections or refrigerant requirements since all Ecotec units come pre-charged from factory and are leak tested prior to delivery.
Copyright © Ecotec Heat Pumps Ltd – E&OE
EAS SERIES for Space heating and cooling
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
2
EAS heat pumps are designed for “Hydronic” water based heating systems and can be used in conjunction with other heating systems such as electric, gas or oil boilers and solar collectors.
EAS air-source (air to water) heat pumps are designed to operate efficiently in cold climates and in temperatures down to - 20c.
Air-source heat pumps make use of free renewable energy from the outside air, heated by the sun and exhaust only cool air and condensation water. Air­source heat pumps do not require costly drilling, digging or ground loops as with geothermal units.
EAS heat pumps are designed for easy installation, and only require connection to heating system, electrical supply and a thermostat or control system.
System description
EAS is designed to heat water solutions up to 60C for heating applications. Temperature setting should be set according to the type of heating system being used.
EAS can be used to heat domestic and potable
water via external heat exchanger or “cholrifier”
cylinder system that indirectly heats the water. EAS units should not be used for direct heating of potable water.
EAS is not intended for direct heating of corrosive agents such as chlorine used in swimming pools and Jacuzzi baths which can damage internal components. An external heat exchanger and circulation pump can be used for swimming pool and spa heating applications.
Declaration of conformity
Ecotec EAS heat pumps have been designed, tested and approved in accordance with BS EN 14511 2004.
Ecotec EAS air-source heat pumps are fully tested before leaving the factory and comply with all current EC directives.
Relevant EC Council Directives: Machinery Directive (98/37/EC)
EMC Directive (89/336/EEC in the versions 93/68/EEC) Low Voltage Directive (73/23/EEC in the version 93/68/EEC)
Applied harmonised standards: EN 292-1:1991, EN 292-2:1991, EN 294:1992, EN 349:1993, EN 55014 -1:2000, EN
55014-2:1997, EN 60335-1:2002, EN 60335-2-40:2003, EN 61000-3:1995 BS EN 14511-Pts 1 to 4:2004, EN378:2000, BS848-5:1999
Basis of self attestation: BS EN ISO 9001:2000 BSI registered firm certificate no. FM671
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
3
Safety precautions
For safety reasons the main power supply should be disconnected before working on the Heat Pump. Never use a main circuit-breaker to start and stop the unit. Each unit is fitted with a power switch. Do not insert objects into the air vents on the outdoor section. This is dangerous as the fan blades rotate at high speed.
Transportation and storage
The Heat Pump must always be transported and stored upright and dry. Never lay the unit down on its front, side or back. When lifting the unit it should be tilted compressor side down. Upon delivery, unpack the and check that pipe fittings are not damaged.
Before starting the installation
The proper power supply should be allocated for each unit. A separate circuit breaker is recommended for multiple unit installations. Check product specifications for power connection ratings Items required for installation (not included)
1. Water circulation pump. Check product
specifications for proper water flow ratings.
2. Water line particle filter.
3. Shut off valves for both inlet-outlet lines.
4. Control unit (optional)
Installation sequence
1. Position the heat pump on solid base or
footing (see locating the heat pump)
2. Install pipe work using pipe rated for the type
of installation and operating temperatures.
3. Install hot water pump and particle filter
4. Flush line to clear debris from pipes.
5. Connect the heat pump to the heating system
6. Install control unit and auxiliary heating unit (if
required)
7. Install flow sensor, outdoor sensor and room
sensor if used.
8. Connect electrical lines between the Heat
pump and backup heater / control unit.
9. Connect the heating system to the Mains
power supply using safety switch and circuit breaker (ground fault breaker)
10. Fill and vent the heating system before
commissioning.
11. Commission the installation by making the
necessary setting on control panel (see control unit user guide)
12. Check the heating installation after
commissioning
Inspection of installation
Check with your local building regulation requirements which may require that heating installations are inspected before being commissioned.
The inspection should be done by a qualified person and documented. In the event that a heat pump is being replaced, the installation may require Inspection again, before re-commissioning.
Danger fan blades rotate at high
speed!
Never let children play near the unit!
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
4
The heat pump and floor stand must be positioned on a solid level surface. Avoid installing the heat pump close to sensitive walls such as bedroom walls, since the pump produces a limited amount of noise and vibration when running.
Protection
The unit is designed for outdoor use and exposure to the elements including direct sunlight. It is advisable to shelter the unit from strong wind, and snow drifts. Falling snow or ice from eaves can damage the unit so it is recommended that a roof be installed for added protection.
Ventilation
Proper ventilation around the unit is important so it should not be placed in small enclosed spaces or rooms that could restrict the fresh air supply to the unit. Proper clearances should be maintained around the heat pump so that air can flow freely through the heat exchanger.
minimum distance from a wall is 30 cm (12”) If multiple units are installed side by side,
minimum recommended space between units is 40cm (16”)
Free space in front of the unit 3m
Drainage
The heat pump produces water from condensation and the defrosting process. Installing it close to pathways or staircases should be avoided because of the risk of slip hazards from ice buildup. Condensation in humid climates can be in excess of 30 liters per day so proper drainage around the unit is important.
Placement checklist
Units should be placed outdoors for
unrestricted air supply.
Do not install the unit in areas where smoke
or gases collect
Do not install the unit in extremely damp or
steamy areas.
Do not install the unit in areas where
excessively high heat-producing equipment is located.
Locate the unit close to the hot water storage
cylinders / usage areas to reduce piping and heat loss.
The unit must sit level, the use or footings or
a raised plinth is recommended.
Units with tanks sit on frame footings, care
should be taken to elevate units in case of flooding.
Units can sit freely on a hard flat surface
provided it can maintain the weight of the unit.
Units without tanks may be wall mounted
using load rated metal brackets or floor mounted.
Side and front panels should be easily accessible
allowing for periodic cleaning. (See maintenance guide)
Do not to block the air intake vents which are
located on the rear of the unit. Minimum
clearance is 30 mm (12”) between the air
intake and wall to allow for proper air flow.
Avoid locations that cause recirculation of
cold air exhaust, since this reduces the heat output.
Outdoor pipes must be well insulated to
prevent heat loss and freezing.
Locating the heat pump
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
5
EAS HEAT PUMP
CIRCULATING PUMP
EXPANSION TANK BY-PASS VALVE
AUTOMATIC AIR VENT
THERMAL STORE
Radiator heating systems
Radiator sizing: Always look to use high efficiency
radiators. Convection radiators are a good option. Radiators should be sized to heat the room with an entering water temperature of 50°-60°c. This should be checked with the radiator manufacturer as different radiators will require varying output factors.
System design: EAS heat pumps are designed to be part of a fully pumped pressurised system; fitted with a variable speed pump and require a suitably sized diaphragm expansion vessel automatic air bleed, pressure gauge and a filling loop incorporating a stop valve, double check valve with test point and removable flexible hose. A safety (pressure relief) valve should also be fitted, set to lift at a maximum pressure of 3 bar. The heat pump should always be used with a reverse return heating circuit to ensure equalization of pressure losses to all parts of the system.
Thermostatic radiator valves: TRV’s should be fitted
in accordance with building regulations. To ensure adequate water flow to the heat pump the radiators in the room with the thermostat should be left open
without TRV’s. In addition a bypass should be fitted
in the system to prevent loss of flow which could result in the heat pump cycling on and off more regularly than it should due to the reduced temperature drop caused by too little heat transfer.
Pipe work: In order for the heat pump to work efficiently it is important to size the system pipe to minimise the pressure drop and ensure adequate flow at all times. Severe pressure drops and low flow will result in reduced performance and possible tripping of the heat pump protective circuit.
Filling a radiator system: The radiator system should have its own expansion tank. Open the tap between the cold water system and the heating system in short intervals and then close it and note the pressure gauge reading. When the system is full or the right pressure has been reached, vent the system and top it up if necessary
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
6
Hydronic Under-Floor heating systems
Underfloor radiant heating systems are well suited for heat pump applications because of the lower operating temperature (35°C typically) of the heating medium. Unlike conventional boilers, a heat pump can supply the heating medium at the correct temperature to the heat emitters, without the need for mixing headers. The system efficiency is improved as power is only being used to raise the heating medium to the correct working temperature. System configuration: The floor is the heat emitter and is of considerably greater mass than other heat emitters such as radiators. Because of this it takes much longer to raise the floor temperature on initial start up, although once operating it will stay at the correct temperature due to thermal mass
Because heat pumps generate a lower temperature heating medium there is a problem if the whole floor area is opened up to the heat pump on initial start-up of the system. The high heat losses into a cold floor will prevent the heating medium reaching the correct operating temperature and ultimately could cause the heat pump to frost up. To overcome this problem the best solution is to fit a thermal store between the heat pump and the heating system so that the heat pump is raising the temperature within the store and not directly within the floor. In addition the heating system should be split into a number of zones to allow for variations in heat load and to improve start up at the commissioning stage.
DIAGRAM SYMBOL KEY
EAS HEAT PUMP
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
7
Connecting to heating system
A particle filter should be fitted on the water inlet side as close to the heat pump as possible. The particle filter removes dirt and debris that can damage the unit. Therefore, it must always be fitted on the incoming hot pipe to remove debris before entering the heat pump.
We recommend using flexible hoses at the inlet/ outlet connections to avoid vibration transfer between heat pump and pipe system.
Shut off valves and drain valves should be fitted to facilitate maintenance and draining incase of prolonged power failures
Pipe diameter should be matched to water flow requirements, (see product specifications)
Outdoor pipes must be properly insulated with material that will not absorb moisture. Minimum recommended insulations thickness is 19mm (3/4”)
Sensor cables and communication lines should be separated from high voltage cable by 20cm (8”) to prevent interference.
The total water volume in the heating system should be at least 20 liters of water per kW of heating output.
Flushing the heating system
Ensure that the pipe system has been thoroughly flushed-out to remove debris before connecting the heat pump. Poor water quality in the heating system can reduce heating efficiency and cause damage to the heat pump. Leaks in the system can allow air to enter the lines. Oxygen in water lines causes corrosive sediments such as magnetite which has an abrasive effect on valves and heating components.
Heating systems that require regular filling, or where heating water is not clear when drained, require remedial measures before installation; such as fitting filters and vents. Do not use treatment additives except agents for raising the pH level in heating line water.
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
8
Commissioning the Heat Pump
1) Before the heat pump goes into service, the
heating system must be filled up and completely vented.
2) Check that there are no leaks in the system.
3) Always ensure that circulation pumps are
on and that there is heat medium circulation when connecting to an existing water system.
4) With in-floor heating: turn off all but one of
the circuits in the building for commissioning.
5) With radiators: turn off half the radiators in
the building for commissioning.
6) With fan-assisted radiator system the fans
in the radiator are controlled and the valves on the fan-assisted radiators are opened fully. In a fan assisted radiator system, the water volume is small. During defrosting the heat pump will draw heat from the lines cooling it down temporarily. It is important that the fans in the radiators run during defrosting. It is recommended that an expansion tank of at least 100 Liters (25 gallons) is used to increase water volume to reduce cooling effect during defrosting.
7) Turn the room thermostat up to 30°C. The
return water temperature is displayed on the controller. Wait for the temperature to read 43°C (radiators) or 33°C (in-floor) and then open each radiator or zone one at a time, waiting for the return water temperature to rise each time.
8) Once the whole system is open allow the
water temperature to rise to the normal operating temperature of 50°C to 60°C for radiators or 35°C for in-floor heating.
9) The unit may go into defrost during the
commissioning due to low temperatures. This is normal and there may be small drops in the water temperature during defrost cycles.
Operating temperatures
Maximum: The heat pump can operate up to a
maximum return temperature of about 60C. Above that temperature the heat pump stops for reasons of safety.
The maximum outgoing temperature from the heat pump is about 65c. Depending on the outdoor temperature. Higher temperatures can be achieved by using an auxiliary heating system.
Minimum: The heat pump is designed to operate to
-15C; at temperatures below this point an auxiliary heating system will be required.
NOTE: On 3 phase units it is possible for the scroll compressor to run backwards. This becomes obvious on start up, there will be no significant rise in water temperature from the unit.
(Normal rise approximately 1°C per minute)
The top of the compressor will not become warm and it may be excessively noisy. If this happens, switch off the mains power and exchange two of the supply phases this will correct the rotation.
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
9
Maintenance
Ecotec Heat Pumps are designed for long life and trouble free operation if installed and maintained properly.
Make routine checks throughout the year to see that the intake vents are not obstructed by snow, ice or leaves. Clear snow or ice from the fan grill, intake vents and from below the unit.
Cleaning
Care should be taken to keep the fins (evaporator coil) and fan blades clean. Clean fin surfaces will result in higher system performance and energy efficiency.
Cleaning should be done every (6) months in
areas with poor air quality (high particulate value).
Cleaning should be done every (12) months in
normal air quality environments.
Clean units using mild detergent and water. Take care not to damage or bend evaporator coils while cleaning.
Care should be taken to keep the drain holes at the base of the unit free of debris to ensure proper condensate drainage. A drainage channel below the drain holes is recommended to prevent condensation build up around the base of the unit.
For sea side installation extra attention must be given to cleaning the units to remove salt buildup which will cause rusting. For high corrosive environments we recommend Marine Grade Heat Pumps which are specially designed for salt spray environments.
(Marine Grade Heat Pumps are available as a special order).
Risk of freezing
Note that the heat exchanger is located outdoors,
which involves a risk of freezing in the event of a power failure.
Drain the heat exchanger when a power
failure longer than one hour in low temperatures occurs (-1C or lower).
The circulation pump must never stop when
the heat pump is running.
The circulation pump must operate even
when the heat pump has been stopped in cold weather to prevent water from freezing in pipes.
10 point annual maintenance plan
1. Clean Heat Pump Cabinet
2. Clean Evaporator Coil
3. Check and Clean Condensate Drains
4. Check Fan Blade Clearances
5. Check Flow/Pressure Switch
6. Check Electrical Connections
7. Check Refrigerant Levels
8. Check Air Temperature Change Through
Evaporator
9. Check Water Temperature Change Through
Condenser
10. Check Water Flow
Always turn power “OFF” before
cleaning
or servicing the heat pump
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
10
TOP VIEW
ACC ES S PAN EL
LEFT FRONT RIGHT BACK
WAT E R
CON N EC TIO N S
ACC ES S
PAN EL
Model
EAS 700
EAS 1000
Heating capacity*
kW
7
10
COP heating *
3.9
3.7
Electrical supply (230V)
V/Hz/phase
230/50/1
230/50/1
Power consumption (Input)
kW
1.8
2.7
Full load current
Amps
17.2
22.6
Electrical supply (380V)
V/Hz/phase
380/50/3
380/50/3
Power consumption (Input)
kW
1.79
2.73
Full load current
Amps
3.9
5.6
Refrigerant type
R134-A
R134-A all models
Compressor
Sanyo hermetic scroll compressor
No. of compressor / circuits per unit
1/1
1/1
low/ high pressure switch
bar
0.5/28
0.5/28
Heat exchanger
Stainless steel plate heat exchanger
Fans
PE or aluminum propeller type – Direct drive, 4 blade
No. of axial fan
2
2
No. fan Steps
3 step- off / low / high – automatic selection
Hydraulic circuit
External pump - to be specified by installer
Recommended water flow rate
Lt./sec
0.38
0.54
Diameter of pipe connections
mm / inch
25 / 1"
25 / 1"
Temperature controller
Carel, PJ series – optional equipment
Output temperature
Deg. C
Radiators 50 / in-floor 35 - 60 maximum
Defrosting (automatic)
Hot gas line with 4 way valve - one defrost cycle per hour
Housing Dimensions
Galvanized steel 1.2 mm - powder coat finish
Height
Mm
1250
1250
Width
Mm
1100
1100
Depth
Mm
390
390
Sound level @ 1 meter
dB(A)
47
47
Weight
Kg
150
164
Accessories / options:
* Ratings at 7c ambient air
Soft starter installed for single phase only
45c water heating
Marine Grade - Zincalume housing, copper coils and brass endplates
Reverse cycle for heating and cooling function
Electronic control unit (thermostat)
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
11
ACC ES S PA NE L
TOP VIEW
WAT E R
CON N EC TIO N S
ACC ES S PA NE L
LEFT FRONT RIGHT BACK
Model
EAS 1200
EAS 1500
EAS 2500
Heating capacity*
kW
12
15
25
COP heating *
3.7
3.6
3.6
Electrical supply (230V)
V/Hz/phase
230/50/1
230/50/1
N/A
Power consumption (Input)
kW
3.3
4.6
---
Full load current
Amps
27
34
---
Electrical supply (380V)
V/Hz/phase
380/50/3
380/50/3
380/50/3
Power consumption (Input)
kW
3.27
4.2
6.9
Full load current
Amps
6.7
8.4
13.5
Refrigerant type
R134-A
R134-A all models
Compressor
Sanyo hermetic scroll compressor
No. of compressor / circuits per unit
2/2
2/2
2/2
low/ high pressure switch
bar
0.5/28
0.5/28
0.5/28
Heat exchanger
Stainless steel, plate heat exchanger
Fans
PE or aluminum propeller type – Direct drive, 4 blade
No. of axial fans per unit
4 4 4
No. fan Steps
3 step- off / low / high – automatic selection
Hydraulic circuit
External pump - to be specified by installer
Recommended water flow rate
Lt./sec
0.65
0.81
1.35
Diameter of pipe connections
mm / inch
25 / 1"
25 / 1.5"
25 / 1.5"
Temperature controller
Carel, PJ series – optional equipment
Output temperature
Deg. C
Radiators 50/ in-floor 35 - 60 maximum
Defrosting (automatic)
Hot gas line with 4 way valve - one defrost cycle per hour
Housing Dimensions
Galvanized steel 1.2 mm - powder coat finish
Height
Mm
1250
1250
1250
Width
Mm
1800
1800
1800
Depth
Mm
500
500
500
Sound level @ 1 meter
dB(A)
47
47
47
Weight
Kg
180
220
255
Accessories / options:
* Ratings at 7c ambient air
Soft starter installed for single phase only
45c water heating
Marine Grade - Zincalume housing, copper coils and brass endplates
Reverse cycle for heating and cooling function
Electronic control unit (thermostat)
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
12
Tips to increase savings
The lower you can keep the temperature of the radiators in the house, the better your heating economy. So make sure not to set your thermostat too high. Run your heating system as efficiently as possible by making sure that the entire surface of your radiators or your in-floor heating coils are kept hot. Thermostatic valves on your radiators or floor heating may have a negative effect on your heating system because they restrict the flow so that the system has to compensate with a higher water temperature. If thermostat valves are fitted, they should be fully opened, except in bedrooms, where they can be turned down slightly.
Important points to check
For optimum heat pump performance, it is important to check the flow on the water out (hot side) of the heat pump. The circulation pumps usually have a speed selector switch; this must be set correctly for the pressure drop in the systems. The recommended temperature difference across the heat pump on the hot side is 7 °C. The nominal flows stated in the Technical data section gives a difference of 5 °C in the +7/45 °C operating condition. The easiest way to check this is to us an electronic thermometer. The flow through the radiator system must be high enough to guarantee that the entire surface of the radiators is kept hot. This maximizes the heat-radiating surface and keeps down the flow temperature from the heat pump. After testing, vent the system again and top up with fresh water if necessary.
Fan control
Three step fans are controlled by a pressure switch on the refrigerant circuit. This can be adjusted if necessary to ensure the high speed is engaged with a low outdoor temperature.
Defrosting principle
The principle of defrosting on the Ecotec EAS heat pump is known as hot gas defrosting. The heat pump automatically defrosts your heat pump. You do not have to be involved. It involves the reversal of the flow in the refrigerant circuit using an electrically-controlled four-way valve. The compressed gas from the compressor is led into the evaporator, causing the ice on the outside to melt. During this process, the temperature or water is cooled slightly. As mentioned, the defrosting process is controlled automatically by a defrosting module, which measures the refrigerant temperature and starts the time controlled interval between each defrosting phase. The time required for defrosting depends on the amount of ice and the outdoor temperature.
Strictly as an example guide, minus 10oC can take 3­4 minutes. Do not rely upon this guide as being
accurate. It is to give you an example defrosting time. Different temperatures and conditions coupled to individual temperatures desired by the user or dwelling will alter these guide times; longer as well as shorter should be expected.
Warranty Notice
Improper installation resulting in blocked air flow to unit, or items placed in front of air Intake vents will result in voided warranty. Improper venting of exhaust air could cause the unit to ice up if cold air cannot escape as per system design.
Only an authorised Ecotec Service Technician is allowed to service the equipment. Any work carried out by an un-authorised technician may result in a voided warranty. Please contact your Dealer for authorised service technician.
VPLV User Manual
Troubleshooting guide
The majority of heat pump failures are caused by: thermostat malfunctions / tripped circuit breaker / or blown fuse. If the heat doesn't come on after adjusting the thermostat to a setting above room temperature try the following:
Heat Pump will not start
6) Check that power is being supplied to the
Heat pump
7) Check that the circuit breakers are not
tripped.
8) Check that the wiring is hooked up
correctly, and in the correct phase for 3 phase models.
9) Check that the thermostat is set correctly.
10) Check to insure that the circulation pump is
working.
11) Check the particle filter and clean if
necessary.
12) Check the manual reset high pressure
switch and reset it if necessary.
No heat
Be sure the thermostat is set to [Heat]
1) Be sure the heat pumps circuit breaker is on
or that its fuse has not blown.
Check both the main electrical panel and
any secondary sub-panels that supply power to the unit. If the circuit has blown or tripped, reset the circuit breaker or replace the fuse. If the circuit blows again, there is a probably a short in the electrical system providing power to the heat pump. Call an electrical contractor.
2) Check the heat pump's power switch is
“ON”
3) Check the circuit breakers on the heat
pumps electrical panel
4) Check the pressure safety switch: your heat
pump is protected by High and Low pressure safety switches that will activate if water line pressure is too high or low.
Tripped Low pressure switch
The low pressure switch is an automatic re­set
Tripped high pressure switch
The High pressure switch is a manual re-set. Remover the control panel cover reset the High pressure switch
Action: check that the system has been
vented correctly. Check that the particle filter is not blocked. Check that the circulations pump is working. Check that shutoff valves are open
6) If it still doesn't work, be sure the
thermostat isn't faulty
7) If none of this works, call your heat pump
engineer or repair technician.
Insufficient heat
If your heat pump runs and provides some heat but not enough:
1) First be sure the thermostat is set properly.
Try raising the temperature setting 5 degrees and waiting a few minutes.
2) Be sure nothing is blocking the flow of
warm air.
3) Check the heat pump particle filter. If it's
dirty clean it.
4) If these simple steps don't work, have a
heat pump repair technician check your system.
Heat pump trips circuit breaker
EAS models are not fitted with auxiliary heaters however other heat pumps can be - auxiliary heating elements are used in defrost cycles with Swedish heat pumps. They can also be used to provide heat when the weather gets too cold causing the heat pump's efficiency drop. These elements are automatically turned on by the system, they may be drawing too
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
14
much power, which trips the circuit breakers. Locate the circuit breaker that serves the auxiliary heating system and reset it.
Heat pump turns on and off too often
If your heat pump cycles off and on too frequently, the problem is likely to be with the thermostat. See the thermostat-related problems below for information on repairing this problem.
When a heat pump turns off and on too frequently, the problem may be that the unit is overheating because of blocked particle filter. Try cleaning or replacing the filter if that doesn't work, call a heat pump repair technician.
Room temperature goes too high or too low
When room temperature rises higher or drops lower than the set temperature on the thermostat, it usually means that the thermostat is improperly calibrated or installed where it doesn't sense a proper sampling of room air.
Heat pump runs noisy
If the heat pump makes rattling noises when it runs, be sure the cover panels are screwed on tight. Check fan blades to make sure they are not damaged or obstructed.
Heat Pump runs continually
If your heat pump runs continually on a moderately cold day, it might be an air flow problem or a refrigerant problem. Air flow can be interrupted by a dirty coil or blocked intake vents.
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
15
Wiring diagrams:
Serviceable parts list
If required, the following parts are available from your authorised installer.
Soft starter 4-way valve Fan motor Fan blades Phase PR 3 minute time relay (Danfoss) High Pressure switch (Danfoss) Low Pressure (Danfoss) Dryer 2-way Receiver Accumulator Corner posts
© Ecotec Heat Pumps Ltd | Installation Manual & User Guide
16
Make a note before you forget
VPLV User Manual
Company Name Street Address
Town Post Code
Customer Name Street Address
Town, Post Code
Please take a moment to write down the following information. If you should ever need to call us for service or a question, we will need this information:
Model Number:___________________________________
Serial Number:___________________________________
Purchase Date:___________________________________
Installer Name/Address/Phone:___________________
__________________________________________________
__________________________________________________
Company Name
Street Address
Town, Post Code
Phone:
Phone number
Fax:
Fax number
E-Mail:
E-mail address
Taking the
Heat out of
Global
warming!
Loading...