Smiths LST Caspian 60 Series, LST Caspian 150 Series, LST Caspian 180 Series, LST Caspian 90 Series, LST Caspian 120 Series Installation & User Manual

Accessories

By fitting optional equipment this product can operate automatically under normal running
conditions. The optional controls fit within the casing of the unit and are supplied with easy to fit
instructions.

Wall Mounted Controller WMCEC

This enables the end user to control the fan speed from a wall mounted control.

Plinth to suit Caspian Universal CCLP

Where the product is installed floor level, the plinth will raise the unit 150mm above the
floor. (Available in black & white)

Air inlet filters for all models.

For accessories or spares please contact either your supplier or Smith’s Environmental
Products Ltd.

Technical designation 60, 90, 120, 150, 180 LST

Products with this symbol (crossed out wheelie bin) cannot be disposed as household waste.
Old electrical and electronic equipment must be recycled at a facility capable of handling these
products and their waste by-products. If you are purchasing replacement equipment your
retailer may offer a 'take back' scheme, or will be able to give details of the nearest approved
authorised treatment facility. Proper recycling and waste disposal will help conserve resources
whilst preventing detrimental effects on our health and the environment.

WEEE Registered Code : WEE/ED0093VW

For Ireland (Republic & Northern), contact MT Agencies on 00 353 1 864 3363

In light of our policy of continuous development Smith’s E nvironmental Products Ltd reserve the right to alter

specifications without prior notice.

Iss: 5 8 OCT 17

Suitable for Low Level Installation Only

Installation & User Guide

User Information.

 This appliance can be used by children aged from 8 years and above and

persons with reduced physical, sensory or mental capabilities or lack of
experience and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way and understand
the hazards involved. Children shall not play with the appliance. Cleaning
and user maintenance shall not be made by children without supervision

 A means for disconnection from the supply mains having a contact

separation in all poles that provides full disconnection under overvoltage
category III conditions must be incorporated in the fixed wiring in
accordance with the wiring rules.

 Ensure that the fan convector is switched-off before opening the cover.

LST Caspian

60, 90, 120, 150 & 180

Series Fan Convectors

Smith’s Environmental Products Ltd

Blackall Industrial Estate, South Woodham Ferrers, Chelmsford , Essex, CM3 5UW

Tel: [phone] Fax: [phone]

Sales: [e-mail] General Information E -mail: [e-mail] Web: www.SmithsEP.co.uk

Introduction

Testing undertaken by BSRIA conforms these heaters comply with DHSS Engineering and
Data DN4 and NHS Estates Health Guidance Note ‘Safe Hot Water and Surface
Temperature’ (1998).
These heaters are designed as a low level mounted product with air outlet discharge from the
top of the unit. LST function ensures the surface and grille temperature does not exceed 43°C
by measuring leaving air temperature and modulating the flow through the heat exchanger.

These heaters must not be installed in wet rooms or other high humidity areas.
These heaters are designed for use on standard two-pipe pumped central heating systems

with a maximum water temperature of 86° C and a maximum pressure of 6 bar (88lbs/in²).
Pipe connections are 22mm, Flow direction must follow that shown on the body of the
valve.

These heaters are classified as a fixed appliance and the electrical connection should be via a
3A fused spur. The fused spur must not be directly below the heater but should be accessible
after completion of the installation. All heaters must be earthed.

This heater is fitted with an integral room thermostat.
This heater is fitted with an air outlet thermostat pre-set to 34°C; and should not be adjusted

above 35°C.
To avoid the possibility of vibration these units must be fitted to a flat even surface.
These heaters are fitted with low temperature cut out stats and will not operate until a water
temperature of approximately 35°C is achieved.

If desired a remote room thermostat can be used in conjunction with this heater. Refer to the
manufacturer’s instructions supplied with the thermostat.

Please note the guarantee may be invalidated if this product is not installed and used in
accordance with these instructions.

For further details please contact our Technical Support on 01245 324560.

Installation Guide

1. Unlock and lower the front access panel using the keys supplied.

2

Fault Finding

1. The fan does not run on any speed setting.
a. Check the power supply is switched ON.
b. Check the fuse in the fused spur.
c. Check the wiring at the fused spur.
d. Check thermostat is calling for heat
e. Check the central heating is switched ON and hot water flowing through system.
f. Vent any trapped air from the system (with the heating system turned OFF).

2. No heat output.
a. Vent any trapped air from the system (with the heating system turned OFF).
b. Check the central heating is switched ON and hot water flowing through system.
c. Check thermostat is calling for heat
d. Balance the central heating system if installed on the same circuit as panel radiators and

increase the circulating pump speed if required.

e. Increase the boiler water temperature.

Providing the power supply is switched on and the room thermostat is calling for heat the
heater will switch on and off automatically with the central heating system.

In the event of difficulty please contact our technical help-line on 01245 324560. It would be
helpful if you do not disconnect the heater from the central heating system prior to calling.

Maintenance.
Warning! Isolate from the electrical supply before performing any work on the
unit.

The internal air filter is removable for servicing. To gain access to the filter, unlock and lower
the front access panel, remove the 2 screws from the filter enclosure panel and lift out.
Carefully lift and remove filter (see fig 3). The filter should be gently tapped to remove any
accumulated dust and vacuumed if necessary.

The coil fins are delicate so take care and only use a soft brush or vacuum cleaner to remove
any dust that may have accumulated.

To replace filter, reverse the removal instructions and ensure the lower front access panel is
securely locked.

The fan(s) and motors should not require servicing. Please contact your supplier if damaged.

Please note in the event of an engineer’s visit, Smith’s Environmental Products Ltd reserve the

rights to apply a call-out charge should the fault prove to be with the system or installation and
not the heater appliance.

7

VR2

VR1

L.T.C

Mains Supply

FAN

+10V
Control

Ground
Tacho

Speed Control

FAN

VR2

VR1

L.T.C

Mains Supply

+10V
Control
Ground
Tacho

Speed Control

FAN

E

N L

LTC FAN

M VALVE

S

W

DIGITAL

ROOMSTAT

BYPASS
TUBE

1 2 3 4 5 6 7 8 9

E N L

VR2

VR1

L.T.C

Mains Supply

+10V

Control

Ground

Tacho

Speed Control

Note: The e arth li nk is d irectl y
above the ne gative termina l
on th e EC D C filte r.

FAN

E N L

S W

DIGITAL

ROOMSTAT

BYPASS
TUBE

1 2 3 4 5 6 7 8 9

M VALVE

LTC FAN

E N L

Fig 3

6

2. Fix the unit to the wall via suitable fixings.

3. Connect the heating system flow and return pipes to the heater pipe work. Pipe entry/ exit

can be made through either the back of the unit or by using the Pipe Knockouts on the bottom
of the unit (See Fig 3). Do not use soldered fittings to connect the heater pipe work as the heat
generated may cause damage to internal wiring and components.

We recommend the use of full-flow service valves. The valves should be accessible after
completion of the installation. We also advise the fitting of an air vent at the highest point on
either the flow or return pipe to remove any air trapped within the system.

4. Open the full flow service valves (see above) and check for water leaks. Remove any

trapped air from the unit via the built in bleed screws as shown in the diagram below.

Note: Ensure the motorised valve is set to the Auto position.

5. Isolate the electrical supply

245

66

176

660

274

A

Model A

60 595
90 895

Electrical supply
in this side

Pipe Centres

B

480

45

Fix to wall using
suitable fixings

B

470
770

85

150

120 1195 1070
150

1495 1370

180 1795 1670

3

Caspian CL 60
Wiring Diagram

Caspian CL 90/ 120
Wiring Diagram

6. Connect the power supply from the fused spur (3 Amp) to the heater terminal block marked
Supply E N L (see fig 2) via the cable entry hole in the top chassis of the heater.
The fused spur must not be directly below the heater and must be accessible after the
installation is complete. All electrical work should be carried out in accordance with current
IEEE regulations.

7. To connect a room thermostat (not supplied) to the connection block on the heater remove
link and connect to terminals 7 & 8.

For further information refer to the room thermostat manufacturers instructions.

Fig 1

Commissioning

1. Turn on the electrical supply at the fused spur.

2. Turn the thermostat control (if fitted) to maximum.

3. Turn on the central heating system

4

4. If these heaters are installed on the same circuit as panel radiators balance the central

heating system.

5. If the installation is working correctly remember to reset the thermostat control to its required

setting.

6. Set the fan speed control to the desired position (see fig 2)

(Note To decrease motorised valve cycles it is recommended that the flow is reduced. (Please
ensure adequate flow through heater).

7. Lift up and close front access panel, ensure this is secure and locked in place with keys

provided.

8. Please leave this Installation & User Guide with the user for future reference.

Heating – see below

Ensure the central heating system is ON. Switch on the power supply to the unit. Set the
thermostat control (if fitted) to the desired temperature. Providing the water temperature
in the central heating system is more than 35°C and the thermostat (if fitted) is calling for
heat the product will switch on.

Note: Achieving higher output than shown in the above table will not be
possible by increasing flow rate, this is because due to LST function of the
heater. To achieve higher than shown outputs increase fan speed.

It is recommended that the model chosen is capable of maintaining the calculated heat loss at
medium heat output enabling the high speed setting to be used for faster heat up and the low
speed for maintaining temperature.

5

Heat Output Performance

LST

Model

Heat

Output

(kW)

Heat

Output

(kW

Heat

Output

(kW

High

Medium

Low

60

2.16

1.58

1.00

90

3.94

3.46

2.99

120

5.71

5.35

4.98

150

7.20

6.70

6.20

180

8.7

8.2

7.7

LOW

MED

HIGH

Fig 2

Heat outputs based at 80°C mean water

temperature, with an entering air temperature

of 20°C, in accordance with BS EN442.

Guarantee Statement

Thank you for purchasing a Smith’s heater.

It has been designed and manufactured to the highest quality standards to ensure it
gives you efficient and trouble-free service for many years.

To back up our commitment, included with your product is a free five year parts

and labour guarantee.

This gives you peace of mind that in the unlikely event of the product failing within
the first five years, we will repair or replace the product completely free of charge
provided the product has been installed, used and maintained in accordance with the
instructions.

It is important to register within 7 days. This will ensure you receive a prompt and
efficient service, if your product requires attention within the guarantee period. If
you do not register your product, you will be required to produce a proof of purchase
prior to receiving this service.

If you experience any problems with the use of your product, please contact our
after-sales office on 01245 324560.

Smith’s Environmental Products Ltd manufactures a complete range of heaters for

domestic and commercial applications.

If you require any further information, please contact us on 01245 324900 or visit
our website at www.SmithsEP.com.

Your statutory rights are not affected by this guarantee.

Please pull this registration card from the

booklet and fill in all parts and return.

Guarantee Registration Card

& Customer Satisfaction Survey

Dear Customer

We hope our product suits all your requirements; it would help us immensely if you could find the time to
fill in this form, your response will help us maintain the quality standards we all expect in today’s climate.

Customer name ________________________________________ Date_____/_____/__________

Email Address ____________________________@________________________________________

Product Name ______________________________________________________________________

Tick as appropriate

V Good Good Fair Poor

Product

Delivery

Sales & Ordering

Response to
any problems

Comments …………………………………………………………………………………………………

………………………………………………………………………………………………..

………………………………………………………………………………………………..

Thank you for your time to fill in this survey, the response will help us to serve your
needs more effectively. Please return by fax to 01245324422.

Quality Control Manager: Ron Brown [e-mail]

User Details

User Name Mr/Mrs/Miss/Ms/Other ……………………………………………………………………………

Initials …………………. Surname ………………………………………………………………………………

Address ………………………………………………………………………………………………………………….

………………………………………………………………………………………………………………………………

…………………………………………………………………… Post Code: …………………………………

Telephone: ……………………………………………………………………………………………………………..

Product & Model installed (e.g. Space Saver SS5)

……………………………………………………………………………………………………………………………….

Room Installed (e.g. Kitchen): …………………………………………………………………………………..

Your details will only be held by Smiths Environmental Products Ltd and used solely to
provide customer services and product information.
If you do not wish to be contacted, please put an x in the box.

Installer Details

Company name: …………………..

Principal contact: Mr/Mrs/Miss/Ms/Other: …………………………………………………………………

Initials: ………………… Surname: ……………………………………………………………………………

Address: …………………………………………………………………………………………………………………

………………………………………………………………………………………………………………………………

…………………………………………………………………… Post Code: ……………………………………

Telephone: …………………………………………………………………………………………………………….

Date of installation ……………/……………/………………

Room Installed (e.g. Kitchen): …………………………………………………………………………………..

Your details will only be held by Smiths Environmental Products Ltd and used solely to
provide customer services and product information.
If you do not wish to be contacted, please put an x in the box.