Frick XLP3 Installation Operation & Maintenance Download Page 22

140.925-IOM (APR 2019)

Page 22

XLP3 EVAPORATIVE CONDENSERS

OPERATION

Remote Reset:

 Connection of between terminals 5 and 6 latches 

triac output in alarm state after set point is exceeded. Opening 
the connection will reset the output to non-alarm state.

NOTICE

If  the  VCOS  trips,  turn  off,  then  lock  and  tag  out  the 

electrical supply to the fan motor(s). Adjust the set point 

screw an additional 1/4 turn clockwise, and push in the 

manual reset button. Start up the fan motor(s) to 

determine if the start-up will cause the VCOS to trip. 

Repeat this adjustment process until the VCOS no longer 

trips when the unit is operated. Make sure to lock out and 

tag out the electrical supply to the fan motor(s) before 

entering the unit or re-setting the switch, each time an 

adjustment to the VCOS is made. After the final adjustment 

has been made, start and stop the fan motor(s) two more 

times to ensure that the VCOS is properly set.

Figure 20 — Electronic VCOS with Alarm Contact is shown

FAN CONTROL

EC Fan System Fan Control

All EC fan motors are controlled simultaneously by a single 20mA 
analog signal where 4mA is 0% speed and 20mA is 100% speed.

NOTICE

With evaporative cooling, a 15 second fan motor delay 

will not be noticed when staging up.

Independent Fan Control (Optional)

Independent fan control is standard on all XLP3 Condensers that 
are equipped with Belt Drive Fan System. In an operating forced 
draft unit with independent fan capabilities and no partitions, idle 
fans tend to windmill in the reverse direction. A windmilling fan 
poses no threat to the system while turning freely, but can create 
a large shock load when the fan motor is suddenly powered up. 
Proper staging of fans when starting from a windmilling condi-
tion will prevent excessive stresses on the drive system. There 
are two control strategy options:

• 

VFD:

 The recommended control option is to use a variable 

frequency drive to control all of the motors. VFDs regulate 
motor speed electronically and start motors with reduced 
voltage and frequency. The result is a gentle motor start, 
and therefore reduced stress.

• 

No VFD

 • 

Staging Up:

 Turn all motors off for 15 seconds. 

Following the 15 second delay, bring all required fans 
onlinse. Allow for a 1 second time delay between fan 
stages to reduce staging current.

 • 

Staging Down:

 Turn off the fan motor. No need for 

delays.

NOTICE

For a unit with a VFD, with a switching frequency of 2.5 

kHz, the line lead length cannot exceed 100 feet. If the 

switching frequency is higher that 2.5 kHz and/or the line 

lead  length  exceeds  100  feet,  a  dV/dT  output  filter  is 

recommended to protect the motor. Since the switching 

frequency and maximum line length requirements  vary 

between VFD and motor suppliers, contact your local 

Frick  Representative  to  determine  if  a  dV/dT  filter  is 

required.

Variable Frequency Drive Operation

•  Applications utilizing variable frequency drives (VFDs) for 

fan motor control must use inverter duty motors built in 
compliance with NEMA standard MG-1, Part 31.

•  Operation of the unit at a speed which resonates with 

components of the drive system or support structure may 
result in vibrations which could damage the components 
or structure, and/or create objectionable noise. Therefore, 
these resonant speed ranges should be identified at start-
up and locked out to prevent operation of the motor at 
these resonant speeds. The “Resonant Speed Identification 
Procedure” must be conducted on page 22.

•  Please refer to the manufacturer’s variable frequency drive 

recommended start-up procedure for further information 
or consult with your local Frick Representative for any VFD 
applications.

NOTICE

The minimum turndown ratio for units with a belt drive is 

10:1 (or 6 hz). Units with the oil pump do not have a 

minimum speed.

Resonant Speed Identification Procedure

There are several characteristic frequencies at which vibration 
levels may resonate with unit structural components. These 
include fan speed, motor speed, bearing frequency, and blade 
pass frequency. Within the overall operating speed range of a 
unit, it is not unusual for one or more of these characteristic 
frequencies to excite the structural components over relatively 
small speed ranges and create an increase in vibration levels. 
If the vibration levels are excessive at these resonant speeds, 
they need to be locked out to prevent the VFD from operating 
the motor at these speeds. The following procedure describes 
how to identify the lockout speed ranges:

•  Ensure the VFD that controls the fan motor is off, and the 

power to the motor circuit is locked out.

•  Attach the accelerometer (provided by others) onto the 

box beam as shown in Figure 21. The accelerometer should 
be placed on the top of the bearing support channel, near 
the fan side bearing, as shown.

Summary of Contents for XLP3

Page 1: ...ive Condenser THIS MANUAL CONTAINS RIGGING ASSEMBLY START UP AND MAINTENANCE INSTRUCTIONS READ THOROUGHLY BEFORE BEGINNING INSTALLATION FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJU...

Page 2: ...TIONS 14 START UP PROCEDURE 15 Considerations for Initial Start Up 15 General 15 Cleaning 15 Inspection 15 Start up 15 EXTENDED SHUTDOWN 16 PROLONGED OUTDOOR STORAGE 16 Storage Preparation 16 Motor Re...

Page 3: ...afety Cage Optional Coil Connection Refrigerant Vapor In Coil Connection Refrig erant Liquid Out Terminal Box Pump Factory Pre Assembled Platforms with Perimeter Handrails Optional BranchLokTM Removal...

Page 4: ...ellaneous parts are included with the shipment and where they are packed This envelope will be attached to the side of the unit or located in a box inside the unit INSTALLATION Unit Weights Before rig...

Page 5: ...to ensure an airtight seal between the top and bottom section Install flat butyl sealer tape Frick part 554000 supplied with the unit on the mating flanges of the lower section in a continuous line A...

Page 6: ...basin section sealer tape must be applied to both cross flanges see Figure 3 10 On units operating with a remote sump tank install a bleed line with valve between the system circulating pump discharg...

Page 7: ...lease ensure that the correct voltage is supplied to the unit If unsure check your unit s submittal to verify that the provided power matches your unit On the factory terminal box remove the NEMA plug...

Page 8: ...nd Figure 9 Detail A Check your submittal for the ladder orientation ordered Attach the ladder to the platform and fasten the lower and intermediate brackets to the ladder side rails as shown in Figur...

Page 9: ...DENSERS INSTALLATION Figure 9 End Ladder Installation Detail A End Ladder Bracket Detail A Perimeter Guardrail Installation Detail B Corner Guardrail Installation Detail C Perimeter Guardrail Installa...

Page 10: ...are provided for all handrail openings and all components are designed to meet OSHA requirements Share two lower fasteners on upper ladder bracket Upper ladder bracket Hoop Detail D Figure 11 Safety...

Page 11: ...per the control panel wiring diagram 5 Connect the heater power wire conduit s to the heater power wire hub s provided on the control panel Make sure the con nection is watertight and secure Pull the...

Page 12: ...Control Panel L1 L2 L3 Controller Liquid Level Temperature Combination Series TL Solitech CT N C NO NC T1 T2 G1 G2 Shielded Cable Assembly Sensor Probe Cord G2 G1 T2 T1 SH No 1 Heater 40 24 16 12 8 1...

Page 13: ...ter basin a For connections 3 or less score the TripleGuard Corrosion Protection System with a hole saw as shown in Figure 14 b For connections 3 or greater proceed to step 4 4 Cut the hole from the o...

Page 14: ...fan screens access panels and access doors in place CAUTION All electrical mechanical and rotating machinery are potential hazards particularly for those not familiar with their design construction an...

Page 15: ...locked out and tagged out Inspection Conduct external inspection of the equipment Check for leaks corrosion and any structural damage Conduct internal inspection of the equipment Check for anything u...

Page 16: ...fer to the manufacturer s guidelines before loading unloading weight from the unit Disconnect lock out and tag out the fans pump and motors Close the shut off valve in the make up water line supplied...

Page 17: ...ump motors are disconnected locked out and tagged out Belt Drive Fan System Frick standard motors are designed for storage at ambient temperatures of 20 F to 104 F 28 9 C to 40 C Prolonged periods of...

Page 18: ...system performance or create a safety hazard Fan Section Icing Protection There are three basic operational methods which can be used to provide the system s required cooling temperature setting fan...

Page 19: ...heaters are sized for the specific unit The heating element has an enclosure that is suitable for outdoor use Annually inspect the basin heater prior to the risk of reaching freezing operating condit...

Page 20: ...bration cutout switch is not needed Mechanical Vibration Cutout Switch Standard Set Point Adjustment When Installed 1 For safety turn off then lock and tag out the electrical supply to the fan motor s...

Page 21: ...Control Panel L1 L2 L3 Controller Liquid Level Temperature Combination Series TL Solitech CT N C NO NC T1 T2 G1 G2 Shielded Cable Assembly Sensor Probe Cord G2 G1 T2 T1 SH No 1 Heater 40 24 16 12 8 10...

Page 22: ...ent Staging Down Turn off the fan motor No need for delays NOTICE For a unit with a VFD with a switching frequency of 2 5 kHz the line lead length cannot exceed 100 feet If the switching frequency is...

Page 23: ...the VFD on and verify that the fan is turning in the correct direction Using the VFD slowly about 1 RPM increase every five to ten seconds adjust the motor speed from the lowest limit to full speed wh...

Page 24: ...tors are disconnected locked out and tagged out Blade Pitch Check to ensure that the blades are all at the same pitch If uncertain measure the pitch with an inclinometer All blades should be within 1...

Page 25: ...s necessary Readjust tension at least once every three months Belt tension check Place a straight edge along the belt from sheave to sheave as shown in Figure 22a or use a tape measure as shown in Fig...

Page 26: ...the bearings as follows Initial Start Up Normally no lubrication is required since the bearings have been lubricated at the factory prior to shipment However if the unit has been stored at the job si...

Page 27: ...the valve seat if necessary Maintain the make up water supply pressure between 15 psig and 50 psig for proper operation Frick recommends a pressure regulator valve provided by others for pressures ove...

Page 28: ...tection System for signs of deep scratches or blemishes especially in areas with field penetrations Touch these up with 3M Windo Weld Super Fast Urethane which is available through your local Frick Re...

Page 29: ...Dissolved Solids TDS 1 500 ppm 2 050 ppm 2 050 ppm 2 500 ppm Conductivity 2 400 micromhos cm 3 300 micromhos cm 3 300 micromhos cm 4 000 micromhos cm Alkalinity as CaCO3 500 ppm 2 600 ppm 2 600 ppm 2...

Page 30: ...methyl or ethyl alcohol or mineral spirits Stainless steel wipes or glass cleaners commonly available in stores may also be used NOTICE Never use chloride or chlorine based solvents such as bleach or...

Page 31: ...reatment expert Bleed Line Calculations Bleed rate is determined by the fol lowing formula B E n 1 Where B Bleed Rate USGPM E Evaporation Rate USGPM Q USGPM x R F x 0 001 Q Process Fluid Flow Rate USG...

Page 32: ...for proper rotation X Check general condition of the fan X X Check fan for uniform pitch 4 X Check fan for rotation without obstruction X X Check and recoat steel shafts with RUST VETO 4 X X X Check...

Page 33: ...140 925 IOM APR 2019 Page 33 XLP3 EVAPORATIVE CONDENSERS MAINTENANCE NOTES...

Page 34: ...ynesboro PA 17268 1206 USA Phone 717 762 2121 FAX 717 762 8624 www johnsoncontrols com frick Form 140 925 IOM 2019 04 Supersedes Nothing Subject to change without notice Published in USA 04 19 PDF 201...

Reviews: