Lennox FXM 110 User manual

lennoxemeia.com

FLEXY

FCM/FHM/FGM/FDM

FWH/FWM

Installation,

operating

and maintenance

Air cooled and water cooled

rooftop packaged units

85 > 234 kW

FLEXYII WSHP-IOM-1307-E

TABLE OF CONTENTS

FLEXYII_WSHP-IOM-1307-E - 1 -

INSTALLATION

OPERATION

MAINTENANCE MANUAL

Ref. FLEXYII_WSHP-IOM-1307-E

IMPORTANT NOTICE - Safety Instructions .......................................................................................................2

TRANSPORT - HANDLING - WARNING..............................................................................................................5

Delivery checks ..............................................................................................................................................5

Rating plate....................................................................................................................................................5

Storage...........................................................................................................................................................5

Maintenance key............................................................................................................................................5

Condensate drain...........................................................................................................................................5

Mandatory handling devices...........................................................................................................................6

Dimensions and weights.................................................................................................................................7

Lifting the units...............................................................................................................................................9

INSTALLATION ....................................................................................................................................................10

Forklift protections..........................................................................................................................................10

Minimum clearance around the unit................................................................................................................11

Duct connections............................................................................................................................................12

WATER CONDENSING (water source heat pump only).......................................................................................13

Water connection............................................................................................................................................13

Antifreeze.......................................................................................................................................................14

Water loop configuration.................................................................................................................................16

Pressure loss..................................................................................................................................................17

INSTALLATION OF A ROOF MOUNTING FRAME .............................................................................................18

Curbing and flashing ......................................................................................................................................19

Non-adjustable non-assembled roof curb installation.....................................................................................20

Energy recovery installation ...........................................................................................................................22

SERVICE MANUAL ..............................................................................................................................................31

IMPORTANT NOTICE – Safety instructions

FLEXYII_WSHP-IOM-1307-E - 2 -

The present manual applies to the following ROOFTOP versions:

FCM 85 - FCM 100 - FCM 120 - FCM 150 - FCM 170 - FCM 200 - FCM 230

FHM 85 - FHM 100 - FHM 120 - FHM 150 - FHM 170 - FHM 200 - FHM 230

FDM 85 - FDM 100 - FDM 120 - FDM 150 - FDM 170 - FDM 200 - FDM 230

FGM 85 - FGM 100 - FGM 120 - FGM 150 - FGM 170 - FGM 200 - FGM 230

FWH 85 - FWH 100 - FWH 120 – FWH150 – FWH170

FWM 85 - FWM 100 - FWM 120 – FWM150 – FWM170

FXM 25 - FXM 30 - FXM 35 - FXM 40 - FXK 55 – FXM 70 - FXM 85 - FXM 100 - FXM 110 - FXM 150 - FXM 170

NOTES FOR UNIT FITTED WITH GAS BURNER:

THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH LOCAL SAFETY CODES

AND REGULATIONS AND CAN ONLY BE USED IN WELL VENTILATED AREA.

IF MACHINE IS INCLUDING GAZ BURNER, MINIMUM CLEARANCE AROUND THE

UNIT MUST BE AT LEAST 8 M TO ALLOW A PROPER GAZ FLUE DILUTION. IF NOT

POSSIBLE, THE FRESH AIR INTAKE MUST BE DUCTED AT LEAST 8 M AWAY

FROM THE GAS BURNER EXHAUST.

PLEASE READ CAREFULLY THE MANUFACTURER’S INSTRUCTIONS BEFORE

STARTING THIS UNIT.

Switchgear must be installed on each unit in accordance with the Machine

Directive and the standard NF EN 60204.

THIS MANUAL IS ONLY VALID FOR UNITS DISPLAYING THE FOLLOWING

CODES: GB IR GR DA NO FI IS

In case these symbols are not displayed on the unit, please refer to the technical

documentation which will eventually detail any modifications required to the

installation of the unit in a particular country.

All the technical and technological information contained in this manual, including any drawing and technical descriptions

provided by us, remain the property of Lennox and must not be used (except in operation of this product), reproduced, issued

to or made available to third parts without the prior written agreement of Lennox.

The technical informations and specifications contained in this manual are for reference only. The manufacturer reserves the right to modify

these without warning and without obligation to modify equipment already sold.

IMPORTANT NOTICE – Safety instructions

FLEXYII_WSHP-IOM-1307-E - 3 -

All FLEXY II Units are compliant with the PED directive 97-23/CE

The following note must be followed carefully

All work on the unit must be carried out by a qualified and authorised employee.

Non-compliance with the following instructions may result in injury or serious accidents.

Work on the unit:

•The unit shall be isolated from the electrical supply by disconnection and locking using the main isolating switch.

•Workers shall wear the appropriate personal protective equipment (helmet, gloves, glasses, etc.).

Work on the electrical system:

•Work on electric components shall be performed with the power off by employees having valid electrical qualification and

authorisation.

Work on the refrigerating circuit(s):

•Monitoring of the pressures, draining and filling of the system under pressure shall be carried out using connections provided

for this purpose and suitable equipment.

•To prevent the risk of explosion due to spraying of coolant and oil, the relevant circuit shall be drained and at zero

pressure before any disassembly or unbrazing of the refrigerating parts takes place.

•There is a residual risk of pressure build-up by degassing the oil or by heating the exchangers after the circuit has been

drained. Zero pressure shall be maintained by venting the drain connection to the atmosphere on the low pressure side.

•The brazing shall be carried out by a qualified brazier. The brazing shall comply with standard NF EN1044 (minimum 30%

silver).

Replacing components:

•In order to maintain CE marking compliance, replacement of components shall be carried out using spare parts, or using

parts approved by Lennox.

•Only the coolant shown on the manufacturer’s nameplate shall be used, to the exclusion of all other products (mix of

coolants, hydrocarbons, etc.).

CAUTION:

In the event of fire, refrigerating circuits can cause an explosion and spray coolant gas and oil.

TRANSPORT –HANDLING:

- Never lift the unit without forklift protections

- Remove the forklift protection before installation

- An approach ramp must be installed if the unit’s installation requirements tell that it's necessary to reach the main switch.

This recommendation is valid for installations in general and in particular for return and curbs. It’s also valid to reach other parts

of the unit: filters, refrigerant circuit, etc…

- It’s advised to fix curbs and roofcurbs to the unit

- Whatever the supply configuration is, respect a minimal duct’s length of 2m before any elbow or any duct’s section change.

COMMISSIONING:

- It must only be carried out by trained refrigeration engineers.

- Don’t forget to open the insulation valve on the liquid line before starting the unit

FILTERS:

- Do the filters fire classification’s choice according to local regulations.

FANSTART:

- Any adjustment has to be done power stopped.

GAS:

- Any work on gas module must be carried out by qualified personnel

- A unit with gas module must be installed in accordance with local safety codes and regulations and can only be used in

planed installation conditions for outdoor.

- Before commissioning this type of unit, it’s mandatory to ensure that the gas distribution system is compatible with the

adjustment and settings of the unit.

IMPORTANT NOTICE – Safety instructions

FLEXYII_WSHP-IOM-1307-E - 4 -

UV LIGHT :

- The UV lamp emits shortwave UV-C ultraviolet radiation which is harmful to skin and eyes

- It can cause serious skin burns and eye inflammation within ONE SECOND of exposure

- Do not enter the machine while UV are switched on

- Make sure the UV light circuit breaker is OFF when opening the return air section door and the supply air section doors

- The following logo will appear to inform about the UV-C radiation risk

TRANSPORT – HANDLING – WARNING

FLEXYII_WSHP-IOM-1307-E - 5 -

DELIVERY CHECKS

On receipt of a new equipment please check the following

points. It is the customer’s responsibility to ensure that the

products are in good working order:

- The exterior has not been damaged in any way.

- The lifting and handling equipment are suitable for the

equipment and comply with the specifications of the

handling instructions enclosed here-in.

- Accessories ordered for on site installation have been

delivered and are in good working order.

- The equipment supplied corresponds to the order and

matches the delivery note.

If the product is damaged, exact details must be confirmed

in writing by registered post to the shipping company within

48 hours of delivery (working days). A copy of the letter

must be addressed to Lennox and the supplier or

distributor for information purposes. Failure to comply will

invalidate any claim against the shipping company.

RATING PLATE

The rating plate provides a complete reference for the

model and ensures that the unit corresponds to the model

ordered. It states the electrical power consumption of the

unit on start-up, its rated power and its supply voltage. The

supply voltage must not deviate beyond +10/-15 %. The

start-up power is the maximum value likely to be achieved

for the specified operational voltage. The customer must

have a suitable electrical supply. It is therefore important to

check whether the supply voltage stated on the unit's rating

plate is compatible with that of the mains electrical supply.

The rating plate also states the year of manufacture as well

as the type of refrigerant used and the required charge for

each compressor circuit.

Fig. 1

STORAGE

When units are delivered on site they are not always

required immediately and are sometimes put into storage.

In the event of medium to long-term storage, we

recommend the following procedures:

- Ensure that there is no water in the hydraulic systems.

- Keep the heat exchanger covers in position (AQUILUX cover).

- Keep protective plastic film in position.

- Ensure the electrical panels are closed.

- Keep all items and options supplied in a dry and clean

place for future assembly before using the equipment.

MAINTENANCE KEY

On delivery we recommend that you keep the key which is

attached to an eyebolt in a safe and accessible place. This

allows you to open the panels for maintenance and

installation work.

The locks are ¼ turn + then tighter (figure 2).

CONDENSATE DRAINS

The condensate drains are not assembled when delivered

and are stored

in the electrical panel with their clamping collars.

To assemble them, insert them on the condensate tray outlets

Fig. 3

TRANSPORT – HANDLING

FLEXYII_WSHP-IOM-1307-E - 6 -

Handling slings to guide the

unit towards the roofcurb

Vacuum lifting beam to

position the unit

COMPLIANT

NON-COMPLIANT

MANDATORY HANDLING DEVICES

TRANSPORT – HANDLING

FLEXYII_WSHP-IOM-1307-E - 7 -

DIMENSIONS AND WEIGHTS

FLEXY2

FCM/FHM/FGM/FDM

100

120

150

170

200

230

View (F, G, H box)

F BOX

G BOX

H BOX

2200

3350

4380

5533

1510

1834

2134

360

450

615

Weight of standard units FCM

990

1065

1141

1442

1505

1752

2052

Weight gas unit FGM

Standard heat

1097

1172

1248

1683

1746

2016

2316

High heat

1167

1242

1318

1706

1769

2056

2356

WSHP

FWH/FWM

100

120

150

170

View (F & G box)

F BOX

G BOX

2200

3350

4380

1510

1834

360

450

Weight of standard units FWH

867.7

874.7

1045.4

1225.8

1314.8

Weight gas unit FWM

Standard heat

999.1

989

1174.4

1461.2

1571.6

High heat

1060

1049.9

1235.3

1500.5

1610.9

F & G BOX

H BOX

TRANSPORT – HANDLING

FLEXYII_WSHP-IOM-1307-E - 8 -

DIMENSIONS AND WEIGHTS

LENGTH

HEIGHT

WIDTH

HOOD

WEIGHT

mm mm mm

Side

Fan

Standard

FXM025

4070

1635

1055

490

600

950

FXM030

4070

1635

1055

490

600

980

FXM035

4750

2255

1290

490

600

1400

FXM040

4750

2255

1290

490

600

1450

FXM055

4750

2255

1290

490

600

1600

FXM070

5050

2255

1725

890

600

1800

FXM085

5050

2255

1725

890

600

1900

FXM100

5050

2255

1725

890

600

2000

FXM110

5650

2255

2000

860

2620

FXM140

5650

2255

2000

860

2620

FXM170

5650

2255

2000

860

2650

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