Envirotec ES D15-HP Instruction manual

Envirotec Ltd
Desborough Park Road
High Wycombe
Bucks HP12 3BX
Tel:
01494 525 342
Web:
www.envirotec.co.uk
Unit Type
ES Type D15‐HP
RAV SP1104AT‐E
Unit Type
ES Type D15‐HP/RAV‐SP1104AT‐E_2016v1
Installation, Operation & Maintenance Manual
Enviroscreen Heat Pump Air Curtain

Page 2 IM,O&M Instructions –Heat Pump
Contents
1.0 General Information....................................................................................................................................... 3
2.0 Environmental Responsibility ......................................................................................................................... 3
3.0 Health & Safety.............................................................................................................................................. 3
4.0 Warning Indications on the Door Curtain......................................................................................................... 4
5.0 Air Curtain Range ........................................................................................................................................... 5
6.0 Air Curtain Performance Data ......................................................................................................................... 6
7.0 Air Curtain & Outdoor Unit Dimensions ..........................................................................................................7
8.0 Isolator Specification (Not supplied as standard but available to order) ...........................................................9
9.0 Filter Specification and Size .............................................................................................................................9
10.0 Installation.................................................................................................................................................. 10
11.0 Operation ................................................................................................................................................... 14
12.0 Wiring Schematics ....................................................................................................................................... 15
13.0 Commissioning............................................................................................................................................ 18
13.0 Troubleshooting .......................................................................................................................................... 18
14.0 Service & Maintenance Instructions ............................................................................................................. 19
15.0 Spares......................................................................................................................................................... 20
16.0 Copyright .................................................................................................................................................... 20
17.0 Warranty .................................................................................................................................................... 20
The information contained in this document is subject to change from time to time. No liability is accepted for information
contained within this document. Please contact Enirotec for further information on 01494 525342.
Please note: ‐
00.0 EC Declaration of Conformity ....................................................................................................................... 21

Page 3 IM, O&M Instructions –Heat Pump
Before starting installation
Read this document and make sure you understand the contents.
Contact Envirotec Ltd on 01494 525342 if you are not certain.
Check that the unit is free from damage.
Check that the wiring diagram is present.
Check that any loose components referred to on the wiring diagram are included.
Don’t dispose of any packaging until you have checked all components.
Don’t dispose of the delivery note - it contains information about the unit that will help us assist you in the event
of any problems.
Envirotec take environmental responsibility seriously and are continually developing
products to help reduce the energy consumption of buildings and to reduce the use of
natural resources when possible. Door curtains are built and packaged using recyclable
material where possible. When the product comes to the end of its useful life please
consider contacting Envirotec to enquire about refurbishment possibilities or recycling
using a specialist registered company in accordance with any national or EU legislation.
Envirotec are an ISO14001 accredited company.
3.1 Safety Procedures
Most accidents that occur during the operation and maintenance of machinery are the result of failure to observe
basic safety rules or precautions. An accident can often be avoided by recognising a situation that is potentially
hazardous.
When handling, operating or carrying out maintenance on the unit, personnel must use safe engineering practices
and observe all relevant local health and safety requirements and regulations. The attention of users in the UK is
drawn to the Health and Safety at Work Act, 1974, and the current issue of the Regulations of the Institution of
Electrical Engineers.
Envirotec Ltd cannot anticipate every possible circumstance that might represent a potential hazard. The warnings
included in this document are therefore not all-inclusive. If the user employs an operating procedure, an item of
equipment or a method of working that is not specifically recommended by Envirotec Ltd they must ensure that
the unit will not be damaged or made unsafe, and that there is no risk to persons or property.
The A-weighted sound pressure level at ≥ 1m from the air curtain is <65 dB(A)” and the C-weighted instantaneous
sound pressure value at ≥ 1m from the air curtain is <70 dB(C).
3.2 Maintenance & repair precautions
Competent personnel only under a qualified supervisor must carry out maintenance, repairs or modifications.
If replacement parts are needed use only genuine Envirotec spare parts.
The refrigerant used in the heat pump range is R410A.
High operating temperatures are attained by some components during normal operation. Ensure all electric
heating elements or heating coils have cooled sufficiently to allow safe handling. Appropriate body protection
against hot surfaces should be worn.
1.0 General Information
2.0 Environmental Responsibility
3.0 Health & Safety

Page 4 IM, O&M Instructions –Heat Pump
Do not open any access panels or touch electrical components while voltage is applied. Only a qualified electrician
equipped with the proper tools and wearing appropriate body protection against electrical hazards should carry
out such work.
Before removing any panels from the enclosure, or dismantling any part of the unit, isolate from the main
electrical power supply. Lock the isolator in the ‘OFF’ position and remove the fuses. Attach a label to the isolator
switch carrying the warning ‘WORK IN PROGESS – DO NOT APPLY VOLTAGE’. Do not switch on electrical power or
attempt to start the unit if a warning label is attached.
Units incorporating Low Temperature Hot Water (LTHW) heating coils must be isolated from the water supply
before undertaking any work. Attach a label to any closed isolating valves carrying the warning ‘WORK IN
PROGRESS –DO NOT ADJUST VALVE’. Do not open valve or attempt to start unit if a warning label is attached.
When Envirotec products are installed over doorways or within the ceiling framework, most maintenance or repair
work will be carried out at heights in excess of 2 metres. Suitable precautions should be taken to ensure that any
access equipment used, ladders, towers, etc., are isolated from passing human traffic by the use of an appropriate
barrier/notice system. Any barriers used should be positioned at a suitable distance to remove risk of injury to
passing personnel from dropped tools/components. All equipment used to gain access to work at height must be
properly secured, and manned by sufficient support staff to meet National/Local safety regulations.
Attention should be paid to the weight of units or individual components, particularly when being removed from
the original installed location. Suitable lifting equipment, including slings, straps, hooks, etc. should be used as
appropriate.
The door curtain must be installed, maintained, repaired and removed by a qualified installer or qualified service
person.
Warnings Description
MOVING PARTS HAZARD - Moving parts
Do not operate with access cover or grille removed
Stop the unit before servicing and safely isolate power supplies
ELECTRICAL SHOCK HAZARD - Live electrical parts
Do not operate with access cover or grille removed
Stop the unit before servicing and safely isolate power supplies
HIGH TEMPERATURE HAZARD - High temperature parts
Do not operate with access cover or grille removed
You may get burned when removing access panel or grille
SHARP EDGES HAZARD –Sharp Edge parts
Do not touch aluminium fins or drain pan holes
Doing so may result in injury
4.0 Warning Indications on the Door Curtain

Page 5 IM, O&M Instructions –Heat Pump
Envirotec’s range of door curtains is designed to be used as an entrance air curtain and to help separate the
internal climate from the external climate and help minimise drafts.
Follow the installation instructions carefully to ensure correct and safe installation of the product.
Enviroscreen ES Type D Free hanging via drop rods front access to air intake/filter.
Maintenance via front mounted/bottom access panel.
5.1 Standard Unit Sizes
Air curtain is available in size.
ES Type_15 HP =1500mm wide
Special sizes are available on request. Please contact Envirotec Sales 01494 525342
5.0 Air Curtain Range

Page 6IM, O&M Instructions –Heat Pump
6.0 Air Curtain Performance Data
AIR CURTAIN MODEL ES D-ES15-HP (Type D 1500 HP)
OUTDOOR UNIT RAV- SP1104AT-E
CAPACITY CODE HP 4
Heating Capacity kW 10.3
Heating COP kW/kW 3.11
Standard Air Flow l/s 630
Standard Air Flow m
3
/h 2268
Fan Motor Power (min.-max.) kW 0.185-0.335
Fan Motor Current (max.) A 4.3
Power Input Indoor kW 0.32
Power Input Outdoor kW 3.00
Power Input System kW 3.32
System Run Current A 13.91
AIR CURTAIN UNIVERSAL ES Type D 1500 HP
Door Width mm 1500
Maximum Door Height m 3.0
Sound Pressure Level dBA 54
Sound Power Level dBA 69
Pipe Connections Gas Side mm - ” 22.2 - 7/8
Pipe Connections Liquid Side mm - ” 15.9 - 5/8
Height/Width/Depth mm 340/1500/520
Weight kg 73
Power Cable From Outdoor To Indoor 3 core + earth
OUTDOOR UNIT RAV- SP1104AT-E
Heating Capacity kW 2.4 - 13.0
Heating Power Input kW 2.52
Operating Range Cooling/Heating °C 43 to -15/15 to -15
Standard Air Flow l/s 1683
Standard Air Flow m
3
/h 6060
Sound Pressure Level Cooling/Heating dBA 49/50
Sound Power Level Cooling/Heating dBA 66/67
Refrigerant Base Charge/Chargeless To kg/m 3/1/30
Refrigerant Additional Charge Main Liquid Side g/m 40
Minimum/maximum piping length m 3/75
Height Difference Outdoor To Indoor m ±30
Pipe Connections Gas Side mm - ” 15.9 - 5/8
Pipe Connections Liquid Side mm - ” 9.5 - 3/8
Drain Port Connector Hose Inner Diameter mm 16
Height/Width/Depth mm 1340/900/320
Total Weight kg 93
Maximum Run Current A 10.43
Power Supply 1 phase 230 V 50 Hz
Suggested Fused Supply A 16
Performance data for heating is laboratory tested to standard EN14511:2011 air curtain operating at high fan speed, outdoor air
temperature 7ºC DB/6ºC WB and indoor air temperature 20ºC DB. Outlet velocity and velocity uniformity tested to BS27327: 2009.

Page 7IM, O&M Instructions –Heat Pump
7.1Enviroscreen ES Type D
Air Curtain
Reference
Length
(A)
Fixing
Centres (B)
Weight
Power
Supply
Power
FLC
Starting
Current
Air
Volume
Output
Unit Size
mm
mm
kg
Phase
kW
Amps
Amps
m3/s
kW
ES D 15
1500
1470
87
1
0.184
2.5
7.5
0.63
11.20
A
317
340
B
Plan View
46
160
53
225
72
29
1 x 20mm
1 x 25mm
Coil connections 22mm
plain copper tails
Cable Entry Points
Enviroscreen Type ES D Fixing details.
614
4 x 10mm Threaded Inserts
39
Front View
General Assembly Drawing Ref. GA 4034
Case Length: (Door width + 200mm) = (A)
Case Height: 340mm
Case Depth: 640mm
Mounting Height: Min 2200mm
Max 3000mm
7.0 Air Curtain System Dimensions

Page 8 IM, O&M Instructions –Heat Pump
Name Note
Refrigerant piping hole
Indoor/Outdoor unit
connecting wire inlet hole ——
Power supply inlet hole Ø38 Kockout hole
1
2
365 17.5
74
17.5
128
46
48
40 40
54
34
170
118
380
383
150 60070 96
39
12
75
200 60
Air inlet port
Air inlet
port
Air outlet
port
Drain hole (Ø28 × 88)
Drain hole (Ø25)
Mounting bolt hole
(Ø12 × 17 long hole)
Mounting bolt hole
(Ø12 × 17 U-shape hole)
B legs
Details of A legs Details of B legs
A legs
55 95
21 64
1
65 7
83 7
Knockout for downward piping
Z views
655
121 53453485
55 95 55
94 95
24 1340
155 605
613
4707185185
360
900
550
60 151531815
Z
400
088108871871 18
30
52 320
Refrigerant pipe
connecting port
(Ø9.5 flare at liquid side)
Refrigerant pipe
connecting port
(Ø15.9 flare at gas side)
2
1
2
1
86 178
327
RAV-SP1104AT-E
(Unit: mm)
7.2 Toshiba Outdoor Unit

Page 9 IM, O&M Instructions –Heat Pump
Isolators must comply with EN60204-1 which states that the switch - disconnector is in accordance with IEC 60947-
3 utilisation category AC23B.
ES Range Door Curtain
–Heat Pump
Air Curtain Reference
Isolator
IEC 60947-3
AC 23
Envirotec
Part No.
Phase
Fan Load
Amp
Starting Current
Amp
ES 15 A, W, HP
TO-2-8900/I1/SVB
CC05
1
2.5
7.5
ES Range Door Curtain
–Toshiba Outside Unit
Air Curtain (Toshiba)
Reference
Isolator
IEC 60947-3
AC 23
Envirotec
Part No.
Phase
Toshiba Power
Input
kW
Maximum
Operating Current
Amp
ES 15 (SM1104AT
-E)
TO-2-8900/I1/SVB
CC05
1
3.1
14.4
For isolator sales contact Envirotec on 01494 525342 or [email protected] quoting model
number and serial number to ensure correct parts are supplied.
8.0 Isolator Specification (Not supplied as standard but available to order)
Use only genuine Envirotec replacement filters to ensure adequate equipment protection.
Filter specification: G3 grade wire rod frame polyurethane foam (washable) filters.
ES Type A –Filter Sizes
9.0 Filter Specification and Sizes
ES Type D –Filter Sizes
Air Curtain
Reference
Unit Width
Filter Size
W x D x T
Envirotec
Part No.
Qty
Grade
ES D 15
1500
1455 x 285 x 5
FIL104
1
G3

Page 10IM, O&M Instructions –Heat Pump
ALWAYS
Only use a qualified installer or qualified service person to install the door curtain. If the door curtain is
installed by an unqualified individual, a fire, electric shocks, injury, refrigerant leakage, noise and or
vibration may result and the product warranty will be invalidated.
If a heat pump model is installed in a small room, take appropriate measures to prevent the refrigerant
from exceeding the concentration limit if it leaks. Consult the dealer who supplied the heat pump outside
unit when implementing the measures. Accumulation of highly concentrated refrigerant may cause an
oxygen deficiency accident.
When transporting the door curtain, take care not to hold the bands around the packing carton. Injury
may result if the bands should break. Wear shoes with additional protective toe caps.
Check the structure is capable of supporting the weight of the unit. The designated hanging bolts M10 or
greater should be used at enough strong places to support the weight of the unit. If the strength is not
enough, the unit may fall down resulting in injury.
Check the unit will cover the full width of the door with minimum 100mm overlap each side. Mount the
unit as close to the door as possible.
Note that the maximum mounting height dimension is from fixed floor level to the discharge grille.
Refer to the charts for dimensions and weights.
Ensure that a suitable fused isolated earthed and lockable power supply is available (not supplied). The
isolator must be located at a height of between 0.6m and 1.9m above the service level. (See charts above
for rating and type). The height of the service level will be dependent upon final fixed position of door
curtain and type and size of access equipment used to service product. As a guide consider the bottom of
the air curtain to be the datum.
Provide a suitable padlock for the off-switch locking to ensure that the isolated power supply is not
accidentally switched on during installation or maintenance.
NEVER
Install the door curtain in a hazardous environment or areas where explosive atmospheres may be
present. If a combustible gas leaks and becomes concentrated around the unit a fire may occur. This
equipment is not intended to be used in hazardous environments.
Obstruct the filter (minimum recommended free space to obstruction 200mm).
Obstruct or cover the linear blade supply air grille.
10.0 Installation

Page 11IM, O&M Instructions –Heat Pump
10.1 Fixing Position
Door Curtain
100mm100mm
Minimum
mounting height
2200mm
Maximum
mounting height
3000mmm
Fixed Floor
Level
Ceiling Level To prevent
restriction to
airflow - minimum
clearance 200mm
ES Type A & B
10.2 Mechanical Installation
ALWAYS
Ensure that the installer is suitably trained or qualified to carry out mechanical installation and that they
have the appropriate PPE and mechanical lifting aids available to allow for a safe installation.
Remove front panel by removing fixing screws to access fixing points.
Replace screws into holes for safe keeping during installation.
Make sure that the final position of the unit will allow free air ways into air intake and the air discharge is
free from obstructions.
Transfer fixing position dimensions to mounting position by carefully measuring or marking through case of
unit.
Use suitable fixings to support the unit’s weight into fixing position.
Clean any debris or materials from the unit before refitting access panel.
Allow the door curtain to
overlap the opening by at
least 100mm each side.

Page 12IM, O&M Instructions –Heat Pump
10.3 Refrigerant Piping
ALWAYS
Consult the Toshiba Installation manual before commencing installation of the outside unit and refrigerant
pipe work. If in doubt contact Toshiba 24 hour Technical Helpline 0870 843 0333
Ensure that all refrigerant pipe is secured correctly, is within maximum pipe separation limits and is
correctly insulated. Do not operate the outdoor unit until the system is fully commissioned. Operating the
outdoor unit with the refrigerant circuit incomplete could cause damage to the unit.
When the door curtain has been installed or relocated, please ensure that the refrigerant circuit is pressure
tested and evacuated in accordance with Toshiba installation instructions and F-Gas Regulations. Failure to
adhere to correct installation practice could lead to a system malfunction, inefficient operation and a
breach of F-Gas Regulations relating to HFC refrigerants.
Ensure that Oxygen Free Nitrogen gas is used to perform the pressure/leak test.
10.4 Electrical Installation
ALWAYS
Ensure that the installer is suitably trained or qualified to carry out the electrical installation and that they
have the appropriate personal protective equipment (PPE) and mechanical lifting aids available to allow for
a safe installation. Only a qualified installer or qualified service person is allowed to carry out the electrical
work on this equipment. Under no circumstances must this work be done by an unqualified individual since
failure to carry out the work properly may result in electric shocks and /or electrical leaks.
When connecting electrical wires, repairing the electrical parts or undertaking other electrical jobs, wear
gloves to provide protection for electricians and from heat, insulation shoes and clothing to provide
protection from electric shocks. Failure to wear PPE may result in electric shocks.
Use wiring that meets the specification in the Installation Manual and the stipulations in the local
regulations and laws. Use of wiring that does not meet the specification may give rise to electric shocks,
electrical leakage, smoking and/or a fire.
Ensure you have read and understood the wiring diagram supplied with the unit.
Ensure that a suitable fused isolated and earthed power supply is available at a maximum distance of 1.9m
from the service level of the unit. (not Supplied)
Check that all the components referred to in the wiring diagram are present.
Use a suitable cable entry point or drill hole in the case using a hole saw sized to suit the cable gland being
careful not to drop swarf inside unit or damage internal components. Any damage to an internal
component during installation may void warranty.
Ensure an isolator switch and circuit breaker (not supplied) that meets the specifications in the installation
manual and the stipulation in the local regulations and laws must be installed between unit and power
supply.
Ensure that the unit is connected to earth (Grounding work). Incomplete grounding causes an electric
shock.
Check that after installation, repair or relocation that the ground wires are connected properly.
Make sure ALL connections are tight and free from damage.

Page 13IM, O&M Instructions –Heat Pump
Clean any debris or materials from the unit before refitting access panel.
Follow the wiring diagram for electrical connections.
After the installation work has finished be sure to use an insulation tester set (500V Megger) to check the
resistance is 2MΩ or more between the charge section and the non-charge metal section (Earth section). If
the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side.
It is recommended that earth continuity test to be carried out on each installed device at completion of
installation ( >10A, 1V ).
NEVER
Connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for telephone wires.

Page 14 IM, O&M Instructions –Heat Pump
The unit is supplied with a simplified remote controller RBC-AS21E2
Maximum number of 8 door curtains can be operated by a single remote controller
Once setting an operation item, you can operate the previous condition by pressing button 3
[Start /Stop] button 3. When starting the door curtain by the remote controller there may be a delay
whilst the outdoor unit prepares itself for operation. Likewise the door curtains fans may continue to
operate for a while even if the compressor of the outdoor unit has stopped. This is quite normal.
When the unit cannot be stopped by the remote controller:
Turn off the main power isolator switch or the leakage breaker and contact a qualified service
person.
Fan Speed button 1 Select Fan speed by pressing 1(Unit may be single speed only. If this is the case then
this button will have no use).
Adjust the desired set point temperature by adjusting the temperature up or down using the up and
down arrow keys [Temp Setup] 2. Every press of the up or down buttons will increase or decrease
temperature by 1 °C accordingly.
Check button (used in servicing) Do not use this button usually.
Is displayed during the operation If the remote controller setting is prohibited by the central remote
controller flashes when [Start /Stop] or [Temp Setup] button is pushed and change is not accepted.
(CHECK) is displayed when the protective device worked or trouble occurred.
Note:
If fault codes occur switch unit off at circuit breaker/isolator and contact Toshiba 24 hour Technical Helpline 0870
843 0333.
1
3
2
4
11.0 Operation

Page 15 IM, O&M Instructions –Heat Pump
12.1 Heat Pump Air Curtain GSS1123 Single Fan Speed Output
Fans
UL (not used)
L 3
M 5
H (7)
CN102
CN101
TC Sensor 1 (TCJ)
Fitted liquid inlet pipe
TC Sensor 2 (TC)
Fitted 2/3 through coil
Door Curtain
Toshiba Outdoor Unit
Remote Control
A B
A
B
Door Curtain earth screw
Outdoor Unit earth screw
2 Pole Isolator
L1
N220/240V AC
Single Phase
Neutral + Earth
.
.
.
RAV-SM1104AT8-E
.
3 Pole Isolator
All A&B
wiring to be 2 Core
Twisted Screened
220/220V AC
Single Phase
3 Core + Earth
BMS
Input
Device
(Optional Extra)
L N
1 2 3
1 2 3
3 Pole Isolator
C1
L N E
Standard Remote - RBC-AS41E
Extended Remote - RBC-AMT32E
7 Day Timer Remote - RBC-AMS41E
TA Sensor
Return Air
CN104
220/240V AC
Single Phase
Neutral + Earth
N (9)
N L M H
Low
Medium
Fan Speed Options
Envirotec Drawing Ref: GSS1123/Toshiba C
12.0 Wiring Schematics

Page 16 IM, O&M Instructions –Heat Pump
12.2 Heat Pump Air Curtain GSS1130 Multi Fan Speed Output –Use with all variants
Fans
UL (not used)
L 3
M 5
H (7)
CN102
CN101
TC Sensor 1 (TCJ)
Fitted liquid inlet pipe
TC Sensor 2 (TC)
Fitted 2/3 through coil
Door Curtain
Toshiba Outdoor Unit
Remote Control
A B
A
B
Door Curtain earth screw
Outdoor Unit earth screw
2 Pole Isolator
L1
N220/240V AC
Single Phase
Neutral + Earth
.
.
.
RAV-SM1104AT8-E
.
3 Pole Isolator
All A&B
wiring to be 2 Core
Twisted Screened
220/220V AC
Single Phase
3 Core + Earth
BMS
Input
Device
(Optional Extra)
L N
1 2 3
1 2 3
3 Pole Isolator
C1
C2
C2
L N E
Standard Remote - RBC-AS41E
Extended Remote - RBC-AMT32E
7 Day Timer Remote - RBC-AMS41E
TA Sensor
Return Air
CN104
220/240V AC
Single Phase
Neutral + Earth
N (9)
N L M H
Envirotec Drawing Ref: GSS1130/Multi-speed A

Page 17 IM, O&M Instructions –Heat Pump
12.3 Master/Slave–Heat Pump GSS1124 Master/Slave
Door Curtain #1
Remote Control
RBC-AS41E
A B
A
B
All A&B
wiring to be 2
Core Twisted
Screened
BMS
Input
Device
(Optional Extra)
Envirotec Drawing Ref: GSS1124 Master /Slave
Door Curtain #2
A
B
Door Curtain #3
A
B
A B
Connectivity with other TCC Controls
BMS Connectivity
LonWorks
Modbus
BACNet

Page 18 IM, O&M Instructions –Heat Pump
Before commissioning please ensure you have read and understood the General Health & Safety Precautions
Note to installing engineer:
The Toshiba Outdoor unit must be set up using an RBC-AMT32E / RBC‐AMS41E controller. Please refer to Toshiba
Technical Literature or call Toshiba 24 hour Technical Helpline 0870 843 0333
Operation
Location
Checked
Checks before power applied
Isolator and circuit breaker in the off position
Unit installed with clear air inlet and outlet paths
Bottom and top face
All packaging and installation materials removed
Internal
Fans freely rotating
Internal
All panels and electrical covers refitted and secure
Bottom/ top face/internal
Unit clean and free from damage
All
Refrigeration circuit check for leaks (Heat Pump units only)
All pipe work
Fully wired to wiring diagram issued
N/A
All electrical terminations tight
Control panel, Switch and
unit
Checks with power applied
Only undertake these test
once all covers have been
refitted and unit is
electrically safe
Fan speeds correct (if applicable)
Switch
Heat function correct (if applicable)
Switch
Run on Timer operates (if applicable –set for 3 minutes)
Controls
If you have noticed that some kind of trouble (such as when an error display has appeared, there is a smell of
burning, abnormal sounds are heard, the door curtain fails to heat or water is leaking) has occurred, do not touch
the door curtain yourself but set the isolator/circuit breaker to OFF position and contact a qualified service person.
Take steps to ensure that the power will not be turned on (by locking off supply and by marking “Out of service”
near the circuit breaker for instance) until the qualified service person arrives. Continuing to use the door curtain
in the trouble status may cause mechanical and electrical problems that could escalate or result in electric shocks
etc.
13.0 Commissioning
13.0 Troubleshooting

Page 19 IM, O&M Instructions –Heat Pump
14.1 Before starting
ALWAYS
Check that electrical supplies are isolated before any maintenance work is carried out. Failure to isolate
the electrical supply may result in electric shocks through contact with the interior parts. Only a qualified
installer or qualified service person is allowed to remove grilles or access panels of the door curtain to
carry out the work.
Place a “Work in progress” sign and safely lock the isolator in the off position while the installation,
maintenance or repair work is being carried out. There is a danger of electric shock if the isolator is ON
by mistake.
Make sure that only a qualified installers or qualified service persons are allowed to undertake work at
heights using a stand of 50cm or more to remove grilles or access panels of the door curtain to
undertake work.
Wear protective gloves and safety work clothing during installation, servicing and removal.
When working at height carry out a risk assessment and take adequate precautions to protect yourself
and others from falls or objects falling from heights.
Remove any builders’ dust within the door curtain before the unit is run.
NEVER
Carry out any electrical work unless the wiring diagram is available.
Climb onto or place objects on top of the door curtain. You may fall or objects may fall off and result in
injury.
14.2 Service
ALWAYS
Inspect for mechanical and electrical defects. Failure to regularly inspect the unit for signs of mechanical
vibration (often due to dirt build up on fan impellers) may cause metal fatigue in fixings or suspension
brackets and the unit may fall down resulting in injury.
Electrically test the insulation of the fan motors and associated wiring.
Gently rotate the impeller (s) by hand to ensure free rotation.
14.3 Cleaning
ALWAYS
Clean Grilles with hot soapy water and a soft cloth. All grilles are replaceable if the need arises.
Gently brush out dirt and dust etc. from the motor, fan impeller, fan casing and shafts.
Use a vacuum cleaner and brush to remove dust from the motor ventilation holes to ensure that motor
cooling is maintained at maximum efficiency.
NEVER
Spill cleaning materials over the motor and wiring.
14.4 Lubrication
ALWAYS
WARNING: Failure to adequately maintain and clean the unit as detailed in these operating & maintenance
instructions will result in a loss of performance and reduced life expectancy of the air-curtain.
WARNING: Failure to adequately maintain the unit may void the warranty. If any problems are
encountered, please contact your installer/supplier.
Lubricate bearings as these are sealed-for-life.
14.0 Service & Maintenance Instructions

Page 20IM, O&M Instructions –Heat Pump
14.5 Filters
ALWAYS
 Check filters on a regular basis.
 Replace filters for electric units on a regular basis. A blocked filter may cause the air temperature to rise
dramatically with an increased risk of fire and operate the high temperature cut out. This will disconnect
the electrical supply. In an extreme case damage beyond repair could be caused. Please note poor filter
maintenance may invalidate the warranty.
NEVER
Leave dirty filters in units for long periods without replacement.
14.6 Throwaway filters (where fitted)
ALWAYS
Inspect the unit after is has been running for two weeks to establish a time-scale within which the filters
should be changed. This will vary on environmental conditions and so intervals between filter changing
will be different.
Remove dirty or blocked filters even if no immediate replacement is available. This will avoid costly
damage.
14.7 Washable filters (where fitted)
ALWAYS
Inspect the unit after is has been running for two weeks to establish a time-scale within which the filters
should be washed. This will vary on environmental conditions and so intervals between filter changing
will be different. A mild detergent solution is recommended.
Contact Envirotec on 01494 525342 or [e-mail] for all replacement consumable items. Major items
such as fans, heating elements etc can be replaced with original design components supplied by Envirotec.
All the information contained in this guide are the property of Envirotec Ltd and may not be used or copied in any
way other than for the safe operation of the equipment it is intended for without written permission from
Envirotec.
Failure to adequately maintain the unit may void the warranty. If any problems are encountered, please contact
your installer/supplier.
Serial number ………………………………………………………
Date installed ………………………………………………………
15.0 Spares
16.0 Copyright15.0 Spares
16.0 Copyright
16.0 Copyright
17.0 Warranty
17.0 Warranty