Carrier 40RUM Series, 40RUM-07, 40RUM-16, 40RUM-08, 40RUM-12 Installation, Operation & Maintenance Manual

Installation Operation Maintenance Manual

40RUM Packaged Air Handler Units – 50Hz

Nominal Cooling Capacity 6.0 – 15.0 Tons

HFC R -410A Refrigerant

40RUM Packaged Air Handler Units – 50Hz

Quality Assurance

04 100 950420

Page 1

Certificate Reg. No:

Subject to change without notice

Manufacturer’s Name: Saudi Airconditioning Manufacturing Co. Ltd.
Country of origin : Jeddah, Saudi Arabia
Nearest port of embarkation: Jeddah Islamic port
Product classification: Commercial and Residential

The 40RUM Series air-handling units are the best choice for packaged air handlers. Model 40RUM units have
direct-expansion coils. All models offer excellent fan performance, a unique combination of indoor air quality features,
easy installation, and affordable prices. Their versatility and state-of-the-art features will provide economical
performance now and in the future.

Contact your local Carrier representative for additional reference materials.

Table of Contents

Page 2

Safety Considerations ................................................................................................................................................. 2

Unit Physical Data ....................................................................................................................................................... 4

Base Dimensional Drawing ......................................................................................................................................... 5

Pre-Installation / Installation ........................................................................................................................................ 7

Start-Up / Service ..................................................................................................................................................... 14

Electrical Data Table / Electrical Heater Data Table ................................................................................................. 18

Typical Wiring Schematic .......................................................................................................................................... 20

Fan Performance Data / Performance Data .............................................................................................................. 21

R-410A Refrigerant Quick Reference Guide ............................................................................................................. 24

Troubleshooting Guide .............................................................................................................................................. 25

Mandatory Startup Checklist and Record ................................................................................................................. 26

SAFETY CONSIDERATIONS

General

Improper installation, adjustment, alteration, service, maintenance or use can cause explosion, fire, electrical
shock or other conditions which may cause personal injury or property damage. Consult a qualified installer;
service agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual
instructions packaged with the kits or accessories when installing.

Follow all the safety codes. Wear safety glasses and work gloves. Use quenching cloths for brazing operations and
have a fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached
to the unit. Consult local building codes for special requirements. In absence of local codes, it is recommended
that the USA standard ANSI/NFPA 70, National Electrical Code (NEC), be followed.

It is important to recognize safety information. This is the safety-alert symbol . When you see this symbol on
the unit and in instructions or manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, CAUTION, and NOTE. These words are used with the safety­alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury of death.
WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe
practices, which may result in minor personal injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or operation.

Installation Safety Considerations

After the unit has been received and when it is ready to be installed or reinstalled, it must be inspected for
damage. If damage is detected upon receipt, immediately file a claim with the shipping company or repair.

This machine must be installed in a location that is not accessible to the public and protected against access by
non-authorized people. This machine must not be installed in an explosive atmosphere.

Do not remove the skid or the packaging until the unit is in its final position. The units can also be lifted with slings,
using only the designated lifting points marked on the unit (labels on the chassis and a label with all unit handling
instructions are attached to the unit). Use slings with the correct capacity, and always follow the lifting instructions
on the certified drawings supplied for the unit.

Safety is only guaranteed, if these instructions are carefully followed. If this is not the case, there is a risk of
material deterioration and injuries to personnel. These units are not designed to be lifted from above.

Warranty

Warranty is based on the general terms and conditions of the manufacturer. Any modifications to the design and/or
installation made without discussion with Carrier and without advance written agreement will result in the loss of
the right to any warranty claims and any claim for injury to personnel as a result of these modifications.

Failure to follow this warning could cause
personal injury, death and /or equipment
damage.

Failure to follow this warning could cause
personal injury or death damage.

Puron® (R-410A) refrigerant systems
operate at higher pressures than standard
R-22 systems. Do not use R-22 service
equipment or components on Puron®
refrigerant equipment.

Relieve pressure and recover all refrigerant
before system repair or final unit disposal.
Wear safety glasses and gloves when handling
refrigerants. Keep torches and other ignition
sources away from refrigerants and oils.

Before performing service or maintenance
operations on unit, always turn off main
power switch to unit and install lockout
tag. Unit may have more than one power
switch.

Sheet metal parts may have sharp edges or
burrs. Use care and wear appropriate protective
clothing, safety glasses and gloves when
handling parts and servicing air conditioning
equipment

WARNING

WARNING

UNIT OPERATION AND SAFETY

HAZARD

PERSONAL SAFETY AND ENVIRONMENTAL

HAZARD

WARNING

CAUTION

ELECTRIC SHOCK HAZARD

CUT HAZARD

Failure to follow this warning could cause
personal injury or death.

Failure to follow this warning could cause
personal injury.

Page 3

UNIT PHYSICAL DATA (ENGLISH UNITS)

4481

4

1 / 22

2 / 22

80

102

23.8

1425

225

175

650

1 / 7/8

2 / 7/8

Page 4

Unit 40RUM 07 08 12 14 16

Nominal Capacity 6.0 7.5 10.0 12.5 15.0

Operating Weight (lb)

Base Unit with TXV (4 Rows) 399 404 425 695 713
Plenum

Fans

Qty / Diameter (in)
Nominal Airflow (cfm) 2400 3000 4000 5000 6000
Airflow Range (cfm) 1800-3000 2250-3750 3000-5000 3750-6250 4500-7500
Nominal Motor HP (Std. Motor)
Motor Speed (rpm)

Refrigerant

Operating Charge (lb) 12.8 13.7 11.66 / 11.66 15.4 / 16.3 20.9 / 19.2
Initial Charge (lb) 7.7 8.2 7.0 /7.0 9.0 / 9.7 12.5 / 11.5

Piping Connections

Suction line - Qty. / Size (in)
Liquid line - Qty. / Size (in) 1 / 3/8 1 / 1/2 2 / 1/2

Filters

Qty. / Size (in)

Direct Expansion Coils

Face Area (sq ft) 6.67 8.33 10.01 13.25 17.67
Max Working Pressure (psig)
Fins/Inch
No. of Rows

2.4 2.9

Puron® (R-410A)

2 / 3/8

Washable - Aluminum

Enhanced Copper Tubes, Aluminum Double Wavy Fins

15

4

2 / 151 / 15

8 / 16x24x14 / 16x24x1

UNIT PHYSICAL DATA (SI UNITS)

Unit 40RUM 07 08 12 14 16

Nominal Capacity 6.0 7.5 10.0 12.5 15.0

Operating Weight (kg)

Base Unit with TXV (4 Rows) 181 183 193 315 323
Plenum

Fans

Qty / Diameter (mm)
Nominal Airflow (L/s) 1133 1604 1888 2360 2831
Airflow Range (L/s) 850-1416 1203-2006 1416-2360 1770-2949 2124-3539
Nominal Motor kW (Std. Motor)
Motor Speed (r/s)

Refrigerant

Operating Charge (kg) 5.8 6.2 5.29 / 5.29 6.99 / 7.39 9.5 / 8.75
Initial Charge (kg) 3.5 3.7 3.2 / 3.2 4.1 / 4.4 5.7 / 5.25

Piping Connections

Suction line - Qty. / Size (mm)
Liquid line - Qty. / Size (mm) 1 / 9.5 1 / 12.7 2 / 12.7

Filters

Qty. / Size (mm)

Direct Expansion Coil

Face Area (sq m) 0.62 0.77 0.93 1.23 1.64
Max Working Pressure (kPag)
Fins/meter
No. of Rows

1.79 2.16

Puron (R-410A)

2 / 9.5

Washable - Aluminum

Enhanced Copper Tubes, Aluminum Double Wavy Fins

591

2 / 3811 / 381

8 / 406x610x25.44 / 406x610x25.4

BASE UNIT DIMENSIONS – 40RUM Series Size 07-12

Top

Front

Right Side

Left Side

Page 5

Notes:

1. Dimensions are in millimeter (mm).

2. Direction of airflow.

3. Recommended clearance:
Rear: 3.0 in (76.2mm)
Front: 2.0ft 6.0in (762mm)
Right Side: 2.0ft 6.0in (762mm)
Left Side: 2.0ft 6.0in (762mm)

4. Liquid piping not supplied by Carrier.

5. Duct flange is factory installed.

BASE UNIT DIMENSIONS – 40RUM Series Size 14 - 16

Top

Front

Left Side

Right Side

Page 6

Notes:

1. Dimensions are in millimeter (mm).

2. Direction of airflow.

3. Recommended clearance:
Rear: 3.0 in (76.2mm)
Front: 2.0ft 6.0in (762mm)
Right Side: 2.0ft 6.0in (762mm)
Left Side: 2.0ft 6.0in (762mm)

4. Liquid piping not supplied by Carrier.

5. Duct flange is factory installed.

PRE-INSTALLATION

Page 7

Pre-Installation

1. The power supply (v, ph, and Hz) must correspond to that specified on unit rating plate.

2. The electrical supply provided by the utility must be sufficient to handle load imposed by this unit.

3. Refer to Installation, General section for locations of electrical inlets, condensate drain, duct connections, and
required clearances before setting unit in place.

4. This installation must conform with local building codes and with the NEC (National Electrical Code) provincial
and local plumbing or wastewater codes and other applicable local codes.

Moving and Storage - To transfer unit from truck to storage site, use a fork truck. Do not stack units more than 2

high during storage. If unit is to be stored for more than 2 weeks before installation, choose a level, dry storage site
free from vibration. Do not remove plastic wrap or skid from unit until final installation.

Rigging - All 40RUM Series units can be rigged by using the shipping skid. Units are shipped fully assembled. Do not

remove shipping skids or protective covering until unit is ready for final placement; damage to bottom panels can
result. Use slings and spreader bars as applicable to lift unit.

INSTALLATION

General - Allow the following clearances for service access and airflow:

• Rear: 3 ft (914 mm) [21/2 ft (762 mm) with electric heat accessory]

1

�

• Front: 2

• Right Side: 3

• Left Side: 2

ft (762 mm)

2

1

�

ft (1067 mm)

2

1

�

ft (762 mm)

2

Be sure floor, wall, or ceiling can support unit weight, refer Dimensional Drawing for dimensions.

Uncrating - Move unit as near as possible to final location before removing shipping skid.

Remove metal banding, top skid, and plastic wrap. Examine unit for shipping damage. If shipping damage is evident,
file claim with transportation agency. Remove base skid just prior to actual installation. Check nameplate information
against available power supply and model number description.

NOTE: Be sure to remove the styrofoam shipping pad from the thermostatic expansion valve (TXV). Verify that it has

been removed

Accessories - Refer to instructions shipped with each accessory for specific information.

Foam Block Location

Unit Positioning -

the unit and supply air discharging vertically through the top of the unit. The unit can also be applied in a horizontal
arrangement with return air entering horizontally and the supply air discharging horizontally. When applying the unit in
a horizontal arrangement, ensure the condensate drain pan is located at the bottom center of the unit for adequate
condensate disposal. See Typical Unit Positioning for condensate connections for each unit position.

The unit can be mounted on the floor for vertical application with return air entering the face of

Page 8

Typical Unit Positioning

Note: Maintain recommended clearances
IMPORTANT: Do NOT attempt to install unit with return air entering top panel of unit. Condensate will not drain from
unit. Typical positioning and alternate return air locations are shown in Typical Unit Positioning. Alternate return air
locations can be used by moving the unit panel from the alternate return air location to the standard return air location.
Refer to overhead suspension accessory drawing for Preferred Suspension Technique. The unit needs support
underneath to prevent sagging.

Note: Dimensions in [ ] are millimeters

Preferred Suspension Technique

Unit Isolation - Where extremely quiet operation is essential, install isolators between floor and base of unit, or

Dual Circuit Coil Piping Configuration RUM 10 - 16

Page 9

between ceiling and top section of unit. Be sure that unit is level and adequately supported. Use channels at front and
sides of unit for reference points when leveling.

Refrigerant Piping Access – The 40RUM Series units come with standard knockouts for refrigerant. These
knockouts are located on both sides of the unit for installation flexibility. The standard knockouts provide sufficient
access to the unit’s coils for all 40RUM units. Recommended access hole use is also listed for all units. Unit
Dimensional Drawing shows the access holes on the control-box side of the unit; this is the side of the unit with the
coil headers, so it is used most often for piping access.

The 40RUM direct-expansion units have internal factory--installed thermostatic expansion valves (TXVs),

distributors, and nozzles for use with R-410A. Knockouts are provided in the unit corner posts for 40RUM refrigerant

piping. See Unit Dimensional Drawing, which also lists recommended knockouts and access holes to use for each

40RUM unit size. Recommended fittings are also listed.

The sensor bulb capillary tubes must be routed from the TXVs inside the unit through one of the piping access holes.
Clamp the TXV sensor bulb on a vertical portion of the suction line, outside the unit. See Fig. 9.

Single Circuit Coil Piping Configuration RUM 07, 08

For single compressor condensing units.

Face-Split Coil Suction and Liquid Line Piping (Typical)

LEGEND:

TXV – Thermostatic Expansion Valve
NOTE: Component location arrangement shown for field installation of sight glasses, solenoid valves, filter driers, and
TXV sensing bulbs. The TXVs and equilizer lines are factory installed.

Typical Evaporator Coil Connections (40RUM) TXV Sensing Bulb Location

For single compressor condensing units.

Fitting Requir ements

Unit

Access Hole No▲

Connection Type

Circuit

Fittings Required (in.)▼

1 - 1/8 Street Elbow

1 - 1/8 Long Radius Elbow

5/8 Street Elbow

5/8 Long Radius Elbow

1 - 1/8 Street Elbow

1 - 1/8 Long Radius Elbow

5/8 Street Elbow

5/8 Long Radius Elbow

1

Suction

Lower

(2) 1 - 1/8 Street Elbow

5/8 Street Elbow

5/8 Long Radius Elbow

5/8 Street Elbow

5/8 Long Radius Elbow

1 - 1/8 Nipple, 5 - 3/4 L

1 - 1/8 Long Radius Elbow

1 - 1/8 Long Radius Elbow

5/8 Long Radius Elbow

5/8 Long Radius Elbow

1 - 1/8 Long Radius Elbow

1 - 1/8 Street Elbow

1 - 1/8 Long Radius Elbow

5/8 Street Elbow

5/8 Long Radius Elbow

5/8 Street Elbow

5/8 Long Radius Elbow

1 - 1/8 Nipple, 5 - 5/8 L

1 - 1/8 Long Radius Elbow

Page 10

40RUM*07

40RUM*08

40RUM*12

1 Suction -

3 Liquid -

1 Suction -

3 Liquid -

2 Liquid Lower

3 Liquid Upper

4 Suction Upper

1 Suction Lower

1 - 1/8 Nipple, 10 - 5/8 L

5/8 Nipple, 8 - 5/8 L

1 - 1/8 Nipple, 8 - 5/8 L

5/8 Nipple, 8 - 5/8 L

5/8 Nipple, 8 - 1/2 L

5/8 Nipple, 13 - 1/2 L

1 - 1/8 Long Radius Elbow

1 - 1/8 Nipple, 12 L

1 - 1/8 Street Elbow

1 - 1/8 Nipple, 75/8 L

5/8 Street Elbow

2 Liquid Lower

40RUM*14

3 Liquid Upper

4 Suction Upper

1 Suction Lower

2 Liquid Lower

40RUM*16

3 Liquid Upper

4 Suction Upper

▲See Unit Dimensional Drawing for access hole location by number.
▼ Fittings are listed in order from header or tee stub connection out to access hole in corner support post.

5/8 Nipple, 1 - 7/16 L

5/8 Street Elbow

5/8 Nipple, 11 - 1/2 L

1 - 1/8 Nipple, 5 - 5/8 L

1 - 1/8 Long Radius Elbow

1 - 1/8 Nipple, 13 L

1 - 1/8 Nipple, 72 - 3/4 L

5/8 Nipple, 1 - 3/8 L

5/8 Nipple, 11 - 1/2 L

1 - 1/8 Long Radius Elbow

1 - 1/8 Nipple, 13 L

Condensate Drain — Install a trapped condensate drain line to unit connection as shown in Fig. Condensate Drains.

Page 11

The unit drain connection is a PVC stub. See Fig.

Drain Pan Slope Adjustment. Some areas may require an adapter to

connect to either galvanized steel or copper pipe. For these applications, install a field--supplied threaded PVC
adapter.

NOTE: Dimensions in [ ] are in millimeters

Condensate Drains

NOTE: A trap must be installed in the condensate drain line to ensure that the static pressure of fans is balanced with

the water column in the drain line and that condensate can drain completely from pan. Without a trap, air can be
drawn up drain line until water level in condensate pan becomes equal to static pressure created by fans, preventing
complete drainage. Conditions will worsen as filters become dirty.

Install clean-out plugs in trap. Pitch drain line downward to an open floor drain or sump. Provide service clearance
around drain line to permit removal of unit panels. Observe all local sanitary codes.

Drain Pan Slope Adjustment

As shipped, the unit’s condensate drain pan is NOT sloped towards the drain connection. The pan slope must be

ELECTRICAL OPERATION HAZARD

accordance with local electrical codes.

WARNING

Page 12

changed to pitch towards the side of the unit with the drain connection. See Drain Pan Slope Adjustment Loosen the 2
screws next to the drain outlet at both ends of the unit, push drain pan down in the slots near the drain connection,
and up in the slots on the opposite end. Re-tighten screws. The pan should have a pitch of at least 1/4-in. over its
length toward the drain connection.

Fan Motor and Drives - Motor and drive packages are factory installed in all units. The motor and drive packages
consist of the following items:

1 — fan motor
1 — adjustable motor pulley
1 — fan pulley
1 — fan belt

For instructions on changing fan rotation, changing drive speeds and adjusting drives, see Pulley and Drive
Adjustment in the Service section.

Power Supply and Wiring -- Check the unit data plate to ensure that available power supply matches electrical
characteristics of the unit. See Electrical Data Table for unit electrical data.

Do not use gas piping as an electrical ground. Unit cabinet must have an uninterrupted, unbroken electrical ground
to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical
wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in

Install power wiring in accordance with all applicable local codes. See unit label diagram. For units with motor sizes
less than 5 Hp (3.7 kW), connect power wiring to unit with no. 10 ring terminal. For units with motor sizes of 5 Hp (3.7
kW) or more, connect power wiring with 1/4--in. ring terminal.

Wiring and Service Access Fan Contactor Box and Terminal
(Side Panel Removed) Block (Cover Removed) (Typical)

Failure to follow this warning could cause in personal injury or death.

Connecting Ductwork - Refer to the Carrier System Design Manual for the recommended design and layout of

UNIT OPERATION HAZARD

WARNING

Page 13

ductwork. Fig. Typical Fan Discharge Connections for Multiple Fan Units shows recommended duct connection to
units with 2 fans.

Do not operate unit without ductwork or discharge plenum unless fan speed has been adjusted for external static

DISCHARGE CONNECTIONS — Duct flanges are factory-supplied; they are shipped inside the unit attached to the
hairpin end of the coil tube sheet for field installation. Using the existing screws, install the duct flanges on the unit’s
fan deck. Each fan discharge requires 2 flanges; each flange must be bent in the middle to conform to the discharge
opening. See Duct Flange Installation. After flanges are installed, connect them to the supply duct using a canvas
connection to prevent vibration. It is important that this connection be properly fabricated to prevent high air friction
losses and air
noise.

RETURN CONNECTIONS — When using return—air ductwork, route return-air duct to the unit’s return air inlet near
the filter rack, using a canvas connection to prevent transmission of unit vibration. If the duct blocks off the unit’s
access panel, provide a slip joint in the ductwork to permit removal for servicing.

Return-Air Filters - Type and size of filters are shown in Tables 1A – 1F and are factory-supplied and factory­installed. In all units with 2 fans, a filter replacement tool (hook) is shipped inside the unit for field use when replacing
filters. See the Service section for instructions on filter element replacement.

Failure to follow this caution could cause equipment damage.

pressure of zero in. wg. Failure to do so may result in motor overload.

Typical Fan Discharge Connections for Multiple Fan Units

Duct Flange Installation

START-UP

Manufacturer

Lubricant

Mobil

Mobilplex EP No. 2

Sunoco

Prestige 42

Texaco

Multifak 2

Texaco

Regal AFB - 2*

ELECTRICAL SHOCK HAZARD

WARNING

Page 14

Before starting unit, check the following and correct as necessary:

• Is unit solidly supported?

• Is fan adjusted for speed and pulley alignment?

• Are pulleys, motor, and bearings securely mounted?

• Are there any loose parts that will rattle or vibrate?

• Is condensate drain pan pitched for correct drainage?

• Are coil baffle plates tight against coil to prevent air bypass?

• Are all panels securely fastened?

• Are all electrical connections correct and tight?

• Is TXV bulb located on suction tube per Fig Face-Split Coil Suction and Liquid Line Piping (Typical)?

• Is the capillary tube to the bulb free of kinks and not subject to pinching?

• Is the bulb well secured to the suction tube with strap?

Also refer to condensing unit or outdoor heat pump section instructions before starting a split system. A split system
start-up checklist is provided at the end of these instructions.

SERVICE

Inspection and maintenance should be performed at regular intervals and should include the following:

• Complete cleaning of cabinet, fan wheel, cooling coil, condensate pan and drain, heating coils, and return-air
grille (if present).

• Inspection of panels and sealing of unit against air leakage.

• Adjustment of fan motor, belt, bearings, and wheels.

• Cleaning or replacement of filters.

• Testing for cooling/heating system leaks.

• Checking of all electrical connections.

Before performing service or maintenance operations on unit, always turn off main power switch to unit and
install lockout tag. Unit may have more than one power switch.

Most unit service can be performed by removing one or both of the unit’s side panels. Coil cleaning or removal or
insulation cleaning may require removal of a rear, top, or bottom panel, depending on the unit’s orientation. When
service is completed, replace unit panels.

Panels - Panels are fastened to unit frame with sheet metal screws. Fan and coil compartment must be sealed tightly
after service to prevent air from bypassing the cooling coil.

Fan Motor Lubrication - Fan motor supplied with unit is permanently lubricated and requires no further lubrication.

Fan Shaft Bearings - Bearings on size 07-12 units are sealed, permanently lubricated bearings that require no further

lubrication. Size 14-16 units have pillow—block bearings (Fig. Fan Shaft, Bearings, and Fan Wheel (Typical) that must
be lubricated with suitable bearing grease approximately every 3 months. See below for suitable lubricants.

Failure to follow this warning could result in personal injury or death.

*Preferred lubricant, contains rust and oxidation inhibitors.

Page 15

Fan Shaft, Bearings, and Fan Wheel (Typical) Fan Shaft Bearing

Fan Motor Mounting

Individual Fan Wheel Adjustment - Loosen the 2 locking bolts holding fan wheel hub to shaft. See (Fig. Fan Shaft,

Bearings, and Fan Wheel (Typical). Position fan wheel in center of the fan housing and tighten locking bolts.
Clearance between wheel and housing should be the same on both sides.

Fan Belts - Motor mounting plate and motor support angles are slotted to permit both vertical and horizontal
adjustment. Adjust belt(s) for correct deflection by loosening motor plate mounting bolts, moving motor/plate assembly
forward or back, and re tightening bolts. Press down on belt with one finger midway between fan and motor pulleys to
check deflection. For units with motor sizes up to and including 3.7 Hp (2.76 kW), correct deflection is 3/16-in. (4.8
mm). For larger motor sizes, correct deflection is 1/8-in. (3.2 mm). See Fig. Fan Motor Mounting. If complete belt
replacement is required during servicing, loosen the motor plate mounting bolts, move motor/plate assembly towards
fan pulley, and pull belt(s) off pulleys. Reverse the procedure with new bolts and readjust deflection.

Fan Rotation - Correct fan rotation with respect to fan outlet is shown in Fan Rotation. To reverse the direction of
rotation of a 3-phase fan motor, reverse any 2 of the power leads. Refer to the connection diagram on the inside of
motor terminal box cover for proper reversing procedure of single—phase motor.

UNIT OPERATION HAZARD

WARNING

Page 16

Fan Rotation

Fan Pulley Alignment - Align as follows:

1. Loosen setscrews on pulleys.

2. Align pulleys visually and tighten setscrews on fan pulley to lock it in place.

3. Use the methods shown in

4. If pulleys are not in correct alignment, loosen the motor holddown bolts and slide the motor axially until the pulleys
are aligned.

5. Tighten motor holddown bolts.

Pulley and Drive Adjustment -- To obtain desired fan speed, refer to the fan motor and drive data in and adjust fan
motor pulley as follows:

1. Remove belt from fan motor pulley after loosening motor from motor base.

2. Loosen setscrew in moveable flange of pulley. Screw moveable flange toward fixed flange to increase the fan
speed and away from fixed flange to reduce speed. Before tightening setscrew, make certain that setscrew is over
nearest flat surface of pulley hub as shown in Fan Pulley Adjustments.

Increasing fan speed produces a greater load on motor. Do not exceed rated capacity of motor.

Fan Pulley Adjustments to check proper pulley alignment.

Fan Pulley Adjustments

Failure to follow this caution could cause equipment damage.

Condensate Drains - Keep condensate drains free of dirt and foreign matter.

UNIT OPERATION HAZARD

WARNING

Filter Latch

Filter Cover Assy.

Remove filter

Page 17

Return-Air Filters - Refer to Replacing Filters section for filter accessibility and removal. Replace with clean filters of
the sizes listed in Physical Data Table.

Coil Removal - Remove unit panels and corner posts as required. Disconnect coil connections and remove fastening
screws. Remove coil through end or side sections of unit.
Cleaning Cooling Coil - Remove return-air filters. Remove any heavy dirt that may have accumulated on underside
of coil. Coil can be cleaned more easily with a stiff brush, vacuum cleaner, or compressed air when coil is dry. If coil is
wet or if water is to be used for cleaning, guard against splashing water on electrical components or damaging
surrounding area. Clean coil baffles as applicable and check for tight fit to be sure air does not bypass coil.

Cleaning Insulation - The insulation contains an immobilized antimicrobial agent that helps prevent the growth of
bacteria and fungi. Clean the inner surface of the insulation according to the separate maintenance instructions
shipped with the unit.

Replacing Filters - Filters can be removed and installed from either side of the unit. Install new filters in units that
have one fan as follows:

1. Remove the side access panel and panel end.

2. Push down Filter Latch and pull out Filter Cover Assy.

3. Remove old filters.

4. Reverse the procedure to install new filters.

To install new filters in larger units that have 2 fans, follow the below steps, but use the factory—supplied filter hook to
slide filters within reach for removal. The filter hook is shipped inside the unit in the filter track.

Failure to follow this caution could cause equipment damage.

Do not operate unit without air filters.

Remove Filter Retainer Clip Filter Removal/Replacement

ELECTRICAL DATA TABLE

=

Page 18

Standard Motors

Unit

40RUM-07
40RUM-08
40RUM-12
40RUM-14
40RUM-16

Unit Voltage

40RUM-07 400-3-50 360-440
40RUM-08 400-3-50 360-440
40RUM-12 400-3-50 360-440
40RUM-14 400-3-50 360-440
40RUM-16 400-3-50 360-440

Legend and Notes for Electrical Data Table
FLA - Full Load Amps
HP - Horse Power
kW - Kilowatt
MCA - Minimum Circuit Amps
MOCP - Maximum Overcurrent Protection

Application heater kW (Using multiplication factor table in Electric Resistance Heater Data Table)

Voltage

400-3-50
400-3-50
400-3-50
400-3-50
400-3-50

Voltage Range

360-440
360-440
360-440
360-440
360-440

Alternate Motors

Voltage Range

Fan Motor

HP (kW) FLA MCA MOCP

2.4 2.6 3.3 15

2.4 2.6 3.3 15

2.9 3.8 4.3 15

2.9 3.8 4.3 15

2.9 3.8 4.3 15

Fan Motor Power Supply

HP (kW) FLA MCA MOCP

2.4 2.6 3.3 15

2.9 3.8 4.8 15

5.0 8.0 10.0 15

5.0 8.0 10.0 15

5.0 8.0 10.0 15

Power Supply

Unbalanced 3-Phase Supply Voltage

Never operate a motor where phase imbalance in supply voltage is greater than 2%.

Use the following formula to determine the percentage of voltage imbalance

= 100 X

Example: Supply Voltage is 400V - 3ph - 60Hz
AB = 392v
BC = 404v
AC = 395v

Determine maximum deviation from average voltage.

(AB) 397 - 392 =5v
(BC) 404 - 397 =7v

(AC) 457 - 397 =2v
Maximum Deviation is 7v.

Determine Percentage Voltage Imbalance.

Average Voltage =

Maximum Deviation From Average Voltage

Average Voltage

392 + 404 + 395

3

1191

3

= 100 X% Voltage Imbalance

7

397

= 397V

= 1.76%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%

IMPORTANT: If the supply voltage phase imbalance is more than 2% contact your local electric utility company

ELECTRICAL HEATER DATA TABLE

2.4 1.79 2.6 5 3.5

2.9 2.16 3.4 5

HP -

kW - Kilowatt

Page 19

Heater Part No.

CAELHEAT

002A00

005A00

008A00

011A00

014A00

017A00

020A00

023A00

40RUM

Size

07-12

08-12

14-16

16026A00

V-Ph-Hz

400-3-50

Fan Motor Electric Heater(s)

Hp

5.0 3.73 7.6 5 3.5

1.79 2.6 10 6.9 —

2.4

2.9 2.16 3.4 10 6.9

3.73 7.6 10 6.9 —

5.0

2.4 1.79

2.16 3.4 15 10.4 —

2.9

5.0 3.73 7.6 15 10.4

1.79 2.6 25 10.4 6.9

2.4

2.9 2.16 3.4 25 10.4

3.73 7.6 25 10.4 6.9

5.0

2.4 1.79 2.6 35 13.9 10.4 24.3 35.1

2.9 2.16 3.4 35 13.9 10.4 24.3 35.1

5.0 3.73 7.6 35 13.9 10.4 24.3 35.1

2.9 2.16 3.4 10 6.9 — 6.9 10.0

5.0 3.73 8.1 10 6.9 — 6.9 10.0

7.5 5.59 11.4 10 6.9 — 6.9 10.0

10.0 5.59 15.1 10 6.9 — 6.9 10.0

2.9 2.16 3.4 20 13.9 — 13.9 20.0

2.9 2.16 3.4 20 13.9 — 13.9 28.9

5.0 3.73 8.1 20 13.9 — 13.9 28.9

5.0 3.73 8.1 20 13.9 — 13.9 28.9

7.5 5.59 11.4 20 13.9 — 13.9 28.9

2.9 2.16 3.4 30 13.9 6.9 20.8 30.1

5.0 3.73 8.1 30 13.9 6.9 20.8 30.1

5.0 3.73 8.1 30 13.9 6.9 20.8 30.1

7.5 5.59 11.4 30 13.9 6.9 20.8 30.1

2.9 2.76

5.0 3.73 8.1 50 20.8 13.9 34.7 50.1 72.8 80

7.5 5.59 11.4 50 20.8 13.9 34.7 50.1 76.9 80

kW

FLA

2.6 15 10.4 — 10.4

3.4 50 20.8 13.9 34.7 50.1

Nominal

Capacity (kW)

Actual Capacity (kW)

Stage 1 Stage 2 Total FLA

— 3.5 5.0 9.5 15

3.5 — 3.5 5.0 10.5 15
— 3.5 5.0 15.8 20

6.9 10.0 15.8 20

— 6.9 10.0 16.8 20

6.9 10.0 22.0 25

10.4 15.0 23.0 25

— 10.4 15.0 28.3 30

17.4 25.1 34.6 35

6.9 17.4 25.1 35.6 40

17.4 25.1 40.9 45

MCA MOCP

15.0 22.0 25

47.1

48.1

53.4

16.8

22.6

26.8

31.4

29.3

40.4

46.3

46.3

50.4

41.9

47.8

47.8

51.9

66.9

50
50
60
20
25
30
35
30
45
50
50
60
50
50
50
60
70

Legend and Notes for Electrical Data Table
FLA - Full Load Amps

Horse Power

MCA - Minimum Circuit Amps
MOCP - Maximum Overcurrent Protection

1. Heater contactor coils are 24 v and require 8 va holding current.

2. Electric heaters are tested and ETL approved at maximum total external static pressure of 1.9 in. wg.

3. MCA and MOCP values apply to both standard and alternate factory-supplied motors.

4. Approximate shipping weight for CAELHEAT002A00-014A00 is 55 lb (25 kg) and for CAELHEAT017A00-026A00 is 60 lb (27 kg)

TYPICAL WIRING SCHEMATIC

Page 20

40RUM Unit Size 7 – 16

FAN PERFORMANCE DATA - English

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

Bhp — Brake Horsepower Input to Fan

ESP — External Static Pressure

Bold indicates field-supplied drive or motor is required. Plain type indicates standard motor and standard drive.

Page 21

Unit

40RUM

7

8

12

14

16

Airflow

(Cfm)

1,800 399 0.19 454 0.24 548 0.35
2,100 446 0.28 497 0.34 583 0.46 660 0.59 733 0.73 802 0.88 867 1.05
2,400 498 0.40 541 0.47 622 0.60
2,700 544 0.55 588 0.63 663 0.78
3,000 594 0.73 635 0.82 707 0.99
2,250 273 0.08 493 0.37 580 0.49 656 0.62
2,600 322 0.15 540 0.52 622 0.66 693 0.81 757 0.96 819 1.12 878 1.29
3,000 552 0.65 595 0.73 673 0.91
3,400 615 0.91 653 1.01 726 1.21
3,750 671 1.20 706 1.31 773 1.53
3,000 399 0.29 573 0.69 654 0.86 722 1.03 784 1.19
3,500 604 0.92 641 1.02 714 1.22 780 1.42 838 1.61 892 1.81 942 2.01
4,000 680 1.33 713 1.45 778 1.68
4,500 756 1.86 787 1.99 845 2.26
5,000 834 2.51 861 2.67 914 2.96
3,750 394 0.40 453 0.52 558 0.80 643 1.10
4,300 436 0.57 487 0.70 586 1.00 670 1.34 742 1.67 806 2.01 867 2.36
5,000 492 0.86 535 0.99 623 1.31
5,700 550 1.23 587 1.37 664 1.71
6,250 596 1.59 630 1.74
4,500 428 0.59 475 0.70 570 0.99 656 1.33
5,300 488 0.92 528 1.04 609 1.34 689 1.71 762 2.11 827 2.51 886 2.92
6,000 542 1.29 578 1.43 649 1.74
6,800 604 1.83 637 1.99
7,500 660 2.42 690 2.59

0.0 0.2 0.4 0.6 0.8 1.0 1.2

External Static Pressure (in. wg)

634 0.47 713 0.6 785 0.74 850 0.89

693 0.74 760 0.89 824 1.05 885 1.22
730 0.93 792 1.09 851 1.26 909 1.44
770 1.15 828 1.32 883 1.50 937 1.69

740 1.07 800 1.24 856 1.41 910 1.60
789 1.40 846 1.59 899 1.78 950 1.97
834 1.74 889 1.95 940 2.16 988 2.37

839 1.91 896 2.14 947 2.36 995 2.58
901 2.52 955 2.78 1005 3.03 1051 3.28
966 3.25 1016 3.54 1064 3.82 1109 4.11

704 1.69 775 2.08 838 2.47 896 2.86
740 2.11 809 2.55 872 2.99 929 3.43

700 2.09

700 2.32
747

2.95

770 2.51 837 2.97 899 3.45 955 3.94

721 2.11 791 2.55 855 3.00 914 3.46
763 2.70 826 3.15 888 3.64 946 4.15
804 3.34 861 3.79 919 4.29 975 4.83

727 0.76 794 0.92 858 1.08

841 1.37 896 1.55

717 1.39 785 1.71 848 2.04

730 1.68 796 2.02 856 2.38

Unit

40RUM

7

8

12

14

16

Airflow

(Cfm)

1,800 910 1.04 965 1.20 1016 1.36 1065 1.52 1111 1.69 1155 1.86
2,100
2,400
2,700
3,000
2,250
2,600
3,000
3,400
3,750
3,000
3,500
4,000
4,500
5,000
3,750
4,300
5,000
5,700
6,250
4,500
5,300
6,000
6,800
7,500 1028 5.39 1078 5.97 1125 6.54

927 1.21 983 1.38 1035 1.56 1084 1.74 1131 1.92 1175 2.11
944 1.41 999 1.59 1052 1.78
964 1.63 1018 1.82 1069 2.03
989 1.89 1039 2.10 1089 2.31
918 1.26 975 1.43 1029 1.62 1079 1.80 1126 1.99 1172 2.18
936 1.48 991 1.67 1044 1.87 1094 2.07 1142 2.28 1188 2.49
963 1.79 1014 1.99 1064 2.20
998 2.18 1045 2.39 1092 2.61

1034 2.58 1078 2.80 1122 3.03

949 1.74 1000 1.93 1050 2.14 1099 2.36 1147 2.58 1192 2.81

990 2.21 1037 2.42 1083 2.64 1128 2.86 1172 3.1 — —
1040 2.80 1084 3.03 1126 3.26
1094 3.53 1136 3.78 1176 4.03
1151 4.39 1191 4.66 — —

909 2.37 968 2.74 1026 3.12 1080 3.51 1131 3.92 1181 4.32

925 2.73 980 3.11 1034 3.52 1084 3.92 1135 4.35 1184 4.78

950 3.26 1002 3.67 1052 4.09

981
1007 4.42 1057 4.91 1103 5.4

912 2.75 967 3.13 1019 3.52 1070 3.92 1120 4.35 1168 4.79

940 3.33 992 3.75 1041 4.18 1088 4.61 1134 5.06 1179 5.52

968 3.92 1018 4.38 1066 4.85
1000 4.67 1050 5.19 1097 5.71

3.88 1031 4.33 1079 4.79

External Static Pressure (in. wg)

1.8 2.0 2.2 2.41.4 1.6

1101 1.98 1149 2.18 1193 2.38
1118 2.24 1165 2.45 — —
1136 2.53 1183 2.76 — —

1113 2.42 1159 2.64 — —
1137 2.83 1182 3.07 — —
1164 3.27 — — — —

1167 3.50 — — — —

— — — — — —
— — — — — —

1101 4.53 1148 4.98 1190 5.44
1125 5.25 1169 5.73 — —
1148 5.90 1191 6.40 — —

1112 5.32 1156 5.80 1198 6.29
1142 6.23 1185 6.76 — —
1170 7.11 — — — —

LEGEND

Underline indicates a different motor and drive combination other than the standard motor and standard drive combination is required. Refer to
fan motor and drive tables to complete selection.

NOTES:
Maximum allowable fan speed is 1200 rpm for all sizes. Fan performance is based on deductions for wet coil, clean 1-in.filters, and unit

casing. See table below for factory-supplied filter pressure drop.

FAN PERFORMANCE DATA (cont.) - SI

r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW

Bhp — Brake Horsepower Input to Fan

ESP — External Static Pressure

Bold indicates field-supplied drive or motor is required. Plain type indicates standard motor and standard drive.

Page 22

Unit

40RUM

7

8

12

14

16

Airflow

(L/s)

850 6.64 0.14 7.56 0.18 9.13 0.26

990 7.43 0.21 8.28 0.25 9.71 0.34 11.00 0.44 12.22 0.54 13.37 0.66 14.44 0.78
1130 8.30 0.30 9.02 0.35 10.36 0.45
1270 9.06 0.41 9.79 0.47 11.06 0.58
1420 9.91 0.55 10.58 0.61 11.78 0.74
1060 4.55 0.06 8.21 0.27 9.67 0.37 10.93 0.46
1230 5.37 0.11 8.99 0.38 10.37 0.49 11.55 0.6 12.62 0.71 13.65 0.84 14.64 0.96
1420 9.21 0.48 9.92 0.55 11.22 0.67
1600 10.25 0.68 10.89 0.75 12.09 0.90
1770 11.18 0.90 11.76 0.98 12.88 1.14
1420 6.65 0.22 9.55 0.51 10.89 0.64 12.04 0.77 13.06 0.89
1650 10.06 0.68 10.69 0.76 11.9 0.91 13.00 1.06 13.97 1.20 14.86 1.35 15.7 1.50
1890 11.33 0.99 11.88 1.08 12.96 1.25
2120 12.61 1.38 13.11 1.49 14.08 1.68
2360 13.90 1.87 14.36 1.99 15.23 2.21
1770 6.57 0.30 7.54 0.39 9.31 0.60 10.72 0.82
2030 7.27 0.43 8.11 0.52 9.76 0.75 11.16 1.00 12.36 1.25 13.44 1.50 14.45 1.76
2360 8.20 0.64 8.92 0.74 10.38 0.98
2690 9.16 0.92 9.79 1.02 11.07 1.27
2950 9.93 1.18 10.50 1.30
2120 7.13 0.44 7.91 0.52 9.50 0.74 10.94 0.99
2500 8.13 0.68 8.80 0.78 10.15 1.00 11.48 1.27 12.7 1.57 13.78 1.87 14.76 2.18
2830 9.03 0.96 9.63 1.07 10.81 1.30
3210 10.07 1.37 10.62 1.48
3540 10.99 1.81 11.50 1.93

0 50 100 150 200 250 300

11.66 1.56

11.66 1.73

12.45

External Static Pressure (Pa)

10.56 0.35 11.88 0.45 13.08 0.55 14.16 0.66

11.55 0.55 12.67 0.66 13.73 0.78 14.76 0.91

12.17 0.69 13.2 0.81 14.19 0.94 15.14 1.07

12.83 0.86 13.8 0.99 14.72 1.12 15.61 1.26

12.33 0.8 13.33 0.92 14.27 1.05 15.17 1.19

13.15 1.04 14.1 1.18 14.99 1.33 15.83 1.47

13.90 1.30 14.82 1.45 15.67 1.61 16.46 1.77

13.99 1.43 14.93 1.59 15.78 1.76 16.58 1.92

15.02 1.88 15.92 2.07 16.74 2.26 17.51 2.44

16.10 2.42 16.94 2.64 17.73 2.85 18.48 3.06

11.73 1.26 12.91 1.55 13.97 1.84 14.93 2.13

12.33 1.58 13.48 1.90 14.53 2.23 15.48 2.56

12.83 1.87 13.95 2.22 14.98 2.58 15.92 2.94

12.01 1.58 13.18 1.90 14.25 2.24 15.23 2.58

12.71 2.01 13.77 2.35 14.8 2.71 15.76 3.09

2.20

13.40 2.49 14.35 2.83 15.31 3.20 16.24 3.60

12.11 0.57 13.23 0.68 14.30 0.81

14.02 1.02 14.93 1.15

11.95 1.04 13.09 1.27 14.13 1.52

12.17 1.25 13.26 1.51 14.26 1.77

Unit

40RUM

7

8

12

14

16

Airflow

(L/s)

850

990
1130
1270
1420
1060
1230
1420
1600
1770
1420
1650
1890
2120
2360
1770
2030
2360
2690
2950
2120
2500
2830
3210
3540 17.13 4.02 17.97 4.45 18.75 4.88

350 400

r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW

15.16 0.78 16.08 0.89 16.94 1.01 17.74 1.13 18.51 1.26 19.25 1.39

15.44 0.90 16.38 1.03 17.25 1.16 18.07 1.30 18.84 1.43 19.58 1.57

15.73 1.05 16.65 1.19 17.53 1.33

16.07 1.21 16.96 1.36 17.82 1.51

16.48 1.41 17.32 1.56 18.14 1.72

15.31 0.94 16.25 1.07 17.14 1.20 17.98 1.34 18.77 1.48 19.53 1.63

15.60 1.10 16.51 1.24 17.39 1.39 18.23 1.54 19.03 1.70 19.80 1.86

16.05 1.33 16.9 1.48 17.74 1.64

16.64 1.62 17.42 1.78 18.2 1.94

17.23 1.93 17.97 2.09 18.7 2.26

15.81 1.29 16.67 1.44 17.51 1.60 18.32 1.76 19.11 1.92 19.87 2.09

16.51 1.65 17.29 1.80 18.05 1.97 18.80 2.13 19.53 2.31 — —

17.34 2.09 18.06 2.26 18.77 2.43

18.24 2.63 18.93 2.82 19.59 3.00

19.18 3.27 19.85 3.48 — —

15.15 1.77 16.13 2.04 17.1 2.33 18.00 2.62 18.85 2.92 19.68 3.22

15.41 2.04 16.34 2.32 17.24 2.62 18.07 2.92 18.92 3.24 19.73 3.56

15.84 2.43 16.7 2.74 17.54 3.05

16.36 2.89 17.19 3.23 17.98 3.57

16.79 3.30 17.61 3.66 18.39 4.03

15.20 2.05 16.12 2.33 16.98 2.62 17.83 2.92 18.67 3.24 19.47 3.57

15.67 2.49 16.53 2.80 17.35 3.12 18.13 3.44 18.90 3.77 19.65 4.12

16.13 2.92 16.97 3.27 17.77 3.62

16.66 3.48 17.50 3.87 18.29 4.26

External Static Pressure (Pa)

450

500 550 600

18.36 1.48 19.14 1.62 19.89 1.77

18.64 1.67 19.42 1.83 — —

18.94 1.89 19.71 2.06 — —

18.54 1.8 19.32 1.97 — —

18.95 2.11 19.69 2.29 — —

19.41 2.44 — — — —

19.45 2.61 — — — —
— — — — — —
— — — — — —

18.35 3.38 19.14 3.71 19.83 4.06

18.75 3.92 19.49 4.27 — —

19.13 4.40 19.84 4.77 — —

18.53 3.97 19.26 4.33 19.97 4.69

19.03 4.65 19.75 5.04 — —

19.50 5.30 — — — —

LEGEND

Underline indicates a different motor and drive combination other than the standard motor and standard drive combination is required. Refer to
fan motor and drive tables to complete selection.

NOTES:
Maximum allowable fan speed is 20 r/s for all sizes. Fan performance is based on deductions for wet coil, clean 25.4-mm filters, and unit

casing. See table below for factory-supplied filter pressure drop.

PERFORMANCE DATA

40RUM

40RUM

Discharge

Plenum

Electric

Heater

Return Air

Grille

Discharge

Plenum

Electric

Heater

Return Air

Grille

Accessory Plenum Air Throw Data — English (Ft)

NOTE: Throw distances shown are for 0.381 m/sec terminal velocity. Use the following multipliers to determine

Page 23

Factory-Supplied Filter Pressure Drop — English

Unit

Unit

40RUM

NOTE: Throw distances shown are for 75 fpm terminal velocity. Use the following multipliers to determine
throw values for other terminal velocities.

7

8

12

14

16

7

8
12
14
16

Airflow (Cfm)

1800 850
2400 1150
3000 1450
2250 1000
3000 1400
3750 1800
3000 1450
4000 1900
5000 2350
3750 1750
5000 2350
6250 2950
4500 2100
6000 2800
7500 3500

Airflow (Cfm)

2400 39 33 24 50 X 1.50
3000 45 38 28 100 X 0.75
4000 55 46 33 150 X 0.50
5000 45 38 28
6000 50 43 31

Pressure Drop (in. wg)

0.05

0.08

0.11

0.07

0.11

0.15

0.11

0.17

0.23

0.06

0.10

0.13

0.08

0.12

0.17

Vane Deflection

Straight 21∫° 45°

Factory-Supplied Filter Pressure Drop — SI

Unit

7

8

12

14

16

TERMINAL

VELOCITY (Fpm)

Airflow (L/s)

THROW

FACTOR

Pressure Drop (Pa)

13
20
28
17
27
38
28
42
56
15
24
33
20

30
42

Accessory Plenum Air Throw Data — SI (m)

Unit

40RUM

throw values for other terminal velocities.

Unit

7

8
12
14
16

7

8

12

14

16

Airflow (L/s)

1150 11.71 9.91 7.20 0.254 X 1.50
1400 13.87 11.71 8.63 0.508 X 0.75
1900 16.65 13.93 9.99 0.762 X 0.50
2350 13.77 11.63 8.57
2800 15.41 13.25 9.55

Airflow (Cfm)

1800 0.06 0.04 0.01 850 15 9 2
2400 0.10 0.06 0.01 1150 25 16 3
3000 0.14 0.10 0.02 1450 36 26 5
2250 0.09 0.06
3000 0.14 0.10 0.02 1400 34 24 5
3750 0.21 0.15 0.03 1800 51 39 8
3000 0.14 0.10 0.02 1450 36 26 5
4000 0.22 0.17 0.04 1900 56 43 10
5000 0.32 0.26 0.06 2350 79 65 15
3750 0.07 0.04 0.01 1750 18 10 2
5000 0.12 0.07 0.02 2350 29 17 5
6250 0.17 0.11 0.02 2950 43 26 5
4500 0.10 0.06 0.01 2100 24 14 2
6000 0.16 0.10 0.02 2800 39 24 5
7500 0.23 0.15 0.03 3500 56 37 7

Straight 21∫° 45°

Vane Deflection

0.01

TERMINAL

VELOCITY (m/sec)

Accessory Pressure Drop — SI (Pa)Accessory Pressure Drop — English (in. wg)

Unit

7

8

12

14

16

THROW

FACTOR

Airflow (L/s)

1000 20 12

2

ATTENTION INSTALLERS AND SERVICE TECHNICIANS!

Page 24

R-410A Refrigerant Quick Reference Guide

• R-410A refrigerant operates at 50-70 percent higher pressures than R-22. Be sure that servicing equipment
and replacement components are designed to operate with R-410A refrigerant.

• R-410A refrigerant cylinders are rose colored.

• Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.

• R-410A refrigerant systems should be charged with liquid refrigerant. Use a commercial type metering

device in the manifold hose when charging into suction line with compressor operating.

• Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low-side retard.

• Use hoses with 700 psig service pressure rating.

• Leak detectors should be designed to detect HFC refrigerant.

• R-410A refrigerant, as with other HFCs, is only compatible with POE oils.

• Vacuum pumps will not remove moisture from oil.

• Do not use liquid-line filter driers with rated working pressures less than 600 psig.

• Do not leave R-410A refrigerant suction line filter driers in line longer than 72 hours.

• Do not install a suction-line filter drier in liquid-line.

• POE oils absorb moisture rapidly. Do not expose oil to atmosphere.

• POE oils may cause damage to certain plastics and roofing materials.

• Wrap all filter driers and service valves with wet cloth when brazing.

• A factory-approved liquid-line filter drier is required on every unit.

• Do NOT use an R-22 expansion device.

• If indoor unit is equipped with an R-22 expansion device, it must be changed to a hard-shutoff R-410A

refrigerant expansion device.

• Never open system to atmosphere while it is under a vacuum.

• When system must be opened for service, recover refrigerant, evacuate then break vacuum with dry

nitrogen and replace filter driers. Evacuate to 500 microns prior to recharging.

• All indoor coils must be installed with a hard-shutoff R-410A refrigerant expansion metering device.

• Do not vent R-410A refrigerant into the atmosphere.

• Do not use capillary tube coils.

• Observe all warnings, cautions, and bold text.

Troubleshooting Guide

PROBLEM CAUSE

REMEDY

Page 25

Cooling Service Analysis

Compressor and condenser fan will not
start.

Compressor will not start but condenser
fan runs.

Compressor cycles (other than normally
satisfying thermostat).

Compressor operates continuously.

Excessive head pressure.

Head pressure too low.

Excessive suction pressure.

Suction pressure too low.

Power failure.

Fuse blown or circuit breaker tripped.

Defective thermostat, contactor, transformer, or
control relay.

Insufficient line voltage.

Incorrect or faulty wiring.

Thermostat setting too high.

Faulty wiring or loose connections in compressor
circuit.

Compressor motor burned out, seized, or internal
over-load open.

Defective overload.

Compressor locked out

One leg of 3-phase power dead.

Refrigerant overcharge or undercharge.

Defective compressor.

Insufficient line voltage.

Blocked condenser.

Defective overload.

Defective thermostat.

Faulty condenser-fan motor.

Restriction in refrigerant system.

Dirty air filter.

Unit undersized for load.

Thermostat set too low.

Low refrigerant charge.

Air in system.

Condenser coil dirty or restricted.

Dirty drier filter.

Dirty condenser coil.

Refrigerant overcharged.

Faulty TXV.

Air in system.

Condenser air restricted or air short-cycling.

Low refrigerant charge.

Restriction in liquid tube.

High heat load.

Faulty TXV.

Refrigerant overcharged.

Dirty air filter.

Low refrigerant charge.

Metering device or low side restricted.

Faulty TXV.

Insufficient evaporator airflow.

Temperature too low in conditioned area.

Field-installed filter drier restricted.

Call power company.

Replace fuse or reset circuit breaker.

Replace component.

Determine cause and correct.

Check wiring diagram and rewire correctly.

Lower thermostat setting below room temperature.

Check wiring and repair or replace.

Determine cause. Replace compressor.

Determine cause and replace.

Determine cause for safety trip and reset lockout.

Replace fuse or reset circuit breaker. Determine cause.

Recover refrigerant, evacuate system, and recharge to nameplate.

Replace and determine cause.

Determine cause and correct.

Determine cause and correct.

Determine cause and replace.

Replace thermostat.

Replace.

Locate restriction and remove.

Replace filter.

Decrease load or increase unit size.

Reset thermostat.

Locate leak, repair, and recharge.

Recover refrigerant, evacuate system, and recharge.

Clean coil or remove restriction.

Replace filter.

Clean coil.

Recover excess refrigerant.

1. Check TXV bulb mounting and secure tightly to suction line.

2. Replace TXV if stuck open or closed.

Recover refrigerant, evacuate system, and recharge.

Determine cause and correct.

Check for leaks, repair, and recharge.

Remove restriction.

Check for source and eliminate.

1. Check TXV bulb mounting and secure tightly to suction line.

2. Replace TXV if stuck open or closed.

Recover excess refrigerant.

Replace filter.

Check for leaks, repair, and recharge.

Remove source of restriction.

1. Check TXV bulb mounting and secure tightly to suction line.

2. Replace TXV if stuck open or closed.

Increase air quantity. Check filter and replace if necessary.

Reset thermostat.

Replace.

A copy of this checklist data has to be submitted to carrier representative. Completion of this checklist is a must for any field claim, no field support will be provided for incomplete or

Outdoor Model Number:

Page 26

Indoor Model Number:

Startup Date:

Additional Accessories:

MANDATORY START-UP CHECK LIST AND RECORD

IMPORTANT!

This page is a mandatory checklist & record – the check to be exec uted and data to be recorded for future reference incase of failure.

blank checklists.

Preliminary Information

Outdoor Serial Number:

Indoor Serial Number:

Technician Name:

Pre-Start-Up Checklist

Outdoor Unit

Is there any shipping damage?

If the unit is damaged, Please specifiy where:

Will this damage prevent the unit start-up?

Check power supply to see if it matches the unit data plate?

Has the ground wire been properly connected?

Are the circuit protection to the unit sized and installed properly?

Are the power wires to the unit sized and intalled properly?

Piping

Are refrigerant lines connected to s ervice valve sets?

Are control power lines connected to control power terminal block?

Are terminal snug in the housing?

Are the service valves opened and backseated ?

Are the Stem Valves Installed and snug?

Have all the refrigerant connections and piping joints checked for leaks?

Indoor Fan Coil Unit Piping

Check if the accurater device is installed in fan coil unit?

TEAR ALONG THE DOTTED LINE

Have refrigerant connections been checked for leak?

Is condensate line connected?

Does condensate line drain freely?

Controls

Are control power lines and control cables routed separately (Not in the same conduit and not in same multi-conductor cable?

Are control wires connected to the sam e circuit as associated refrigerant lines?

Check to make sure the subbase mounting to wall is secure? ( Don’t apply excessive force to mounting screw)

Units With Wireless Remot e Controller

Check mounting of interface board, are standoffs used to maintain fixed seprat ion above sheet metal chassis?

Check connection of power supply plug (2-circuit molex plug) on interface board, is the blue lead connected to pin1?

Are fresh batteries intalled properly in the fan coil remote controller?

Does remote controller backlight illuminate when the button is pressed?

Fan System

Does fan rotate freely?

Are air filters in place?

Indoor Power Supply

Does the power supply match the fan coil unit data plate?

Is ground wire connected?

Start-Up Checklist

Check Indoor Fan Operation Under Ceiling Fan Coil Units

Select fan mode, then initiate test sequence. Does the fan coil start at low speed , then shift to medium then to high?

Start System Operation at t he Fan Coil Unit

Select cooling mode and adjust set point to be below current room temperature, Observe operation of outdoor condensing unit

Does compressor start (After Initial Time Delay) and Run?

Does outdoor fan run or cycle according to space requirements?

De-select cooling mode at indoor fan coil unit, after atleast 15 minutes of running time and record all inform ation below:

Outdoor Unit

Compressor Am ps(L1/L2/L3)

Oil Pressure

Vapor Line Pressure

Vapor Line Temp

Discharge Pressure

Discharge Line Temp

Entering Outdoor Air Temp

Leaving Outdoor Air Temp

Fan Coil Unit

Indoor Entering Air dB(Dry Bulb) Temp

Indoor Entering Air dB(Wet Bulb) Temp

Indoor Leaving Air dB(Wet Bulb) Temp

Indoor Leaving Air dB(Wet Bulb) Temp

Yes No NA

Yes No NA

NOTES

Page 27

Page 28

Manufacturer reserves the rights to discontinue or change at any time, specifications or designs without notice and without incurring any obligations.
Supersedes Version: N/A Catalog Number: 40RUM-IOM-50Hz-V1
Effective Date: 13-01-2016 Phase: 50Hz