background image

48VLU-E, 48VLU-F Ultra Low NOx: Product Data

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

1

Product Data

A170030

Fig. 1 – Unit 48VL

Single-Packaged  Products  with  Energy-Saving  Features  and  Puron®

R-410A refrigerant.

• 14.0 SEER

• 11.5 EER

• 81.0% AFUE (Single phase and three phase models)

• ECM Blower Motor-Standard

• Direct Spark Ignition

• Low Sound Levels

• Dehumidification Feature

• Dense Wire Condenser Coil Guard-Standard

Features/Benefits

One-piece  heating  and  cooling  units  with  low  sound  levels,  easy

installation, low maintenance, and dependable performance. 
Puron  is  Carrier’s  unique  refrigerant  designed  to  be  environmentally

balanced. Puron is an HFC refrigerant which does not contain chlorine

that can harm the ozone layer. The most important advantage of Puron

refrigerant  is  that  it  has  not  been  banned  in  future  air  conditioning

systems as the traditional refrigerant R-22 has been. Puron refrigerant is

in  service  in  millions  of  systems  proving  highly  reliable  and  is

non-ozone depleting. 

Easy Installation

Factory-assembled  package  is  a  compact,  fully  self-contained,

combination gas heating/electric cooling unit that is prewired, pre-piped,

and  pre-charged  for  minimum  installation  expense.  These  units  are

available  in  a  variety  of  standard  and  optional  heating/  cooling  size

combinations  with  voltage  options  to  meet  residential  and  light

commercial requirements. Units are lightweight and install easily on a

rooftop or at ground level. The high tech composite base eliminates rust

problems associated with ground level applications. 

Innovative Unit Base Design 

On  the  inside  a  high-tech  composite  material  will  not  rust  and

incorporates  a  sloped  drain  pan  which  improves  drainage  and  helps

inhibit mold, algae and bacterial growth. On the outside metal base rails

provide added stability as well as easier handling and rigging.

Convertible Duct Configuration 

Unit is designed for use in either downflow or horizontal applications.

Each unit is converted from horizontal to downflow  and includes two

horizontal duct covers. Downflow operation is provided in the field to

allow vertical ductwork connections. The basepan seals on the bottom

openings to ensure a positive seal cin the vertical airflow mode.

Efficient  operation  high-efficiency  design

  offers  SEER  (Seasonal

Energy Efficiency Ratios) of 14.0, 11.5 EER, and AFUE (Annual Fuel

Utilization Efficiency) ratings up to 81.0%. 

Energy-saving, direct spark ignition

 saves gas by operating only when

the room thermostat calls for heating. Standard units are furnished with

natural  gas  controls.  A  low-cost  field  installed  kit  for  propane

conversion is available for all units. 

Ultra  Low  NOx  units

  meet  South  Coast  Air  Quality  Management

District  (SCAQMD)  and  San  Joaquin  Air  Pollution  Control  District

(SJAPCD)  are  regulating  a  reduction  of  65%,  down  to  no  more  than

14ng/J of NOx emissions.

Durable, Dependable Components 

Turbo-tubular™  heat  exchangers

    are  constructed  of  stainless  steel

and aluminized steel for corrosion resistance and optimum heat transfer

for improved efficiency. The tubular design permits hot gases to make

multiple passes across the path of the supply air.
In addition, dimples located on the heat exchanger walls force the hot

gases to stay in close contact with the walls, improving heat transfer. 

ECM Blower Motor

 is standard on all models.

Direct-drive  PSC  (Permanent  Split  Capacitor)  condenser-fan

motors

 are designed to help reduce energy consumption and provide for

cooing  operation  down  to  40°F  (4.4°C)  outdoor  temperature.

Motormaster®  II  lowambient  kit  is  available  as  a  field-installed

accessory. 

Thermostat Controls

Time Guard® II anti-short cycle protection circuitry. If a non-corporate

thermostat without anti-short cycle protection is used the Time Guard II

field-installed anti-short cycle kit is recommended.

Refrigerant system

 is designed to provide dependability. Liquid filter

driers are used to promote clean, unrestricted operation. Each unit leaves

the factory with a full refrigerant charge. Refrigerant service connections

make checking operating pressures easier. 

High pressure switch

 provides added reliability for the compressor.

Low pressure switch (24 and 30 size only) 

provides added reliability

for the compressor.

48VLU-E, 48VLU-F Ultra Low NOx

Comfort™14 SEER Single-Packaged Air

Conditioner and Gas Furnace System with Puron®

(R-410A) Refrigerant

Single Phase 2-5 Nominal Tons (Sizes 24-60)

Three Phase 3-5 Nominal Tons (Sizes 36-60)

Summary of Contents for Comfort 48VLU-E

Page 1: ...to allow vertical ductwork connections The basepan seals on the bottom openings to ensure a positive seal cin the vertical airflow mode Efficient operation high efficiency design offers SEER Seasonal...

Page 2: ...d horizontal metal duct covers with insulation come with the unit and cover the horizontal duct openings These can be left in place if the units are converted to downflow Integrated Gas Control IGC bo...

Page 3: ...cal Supply 3 208 230 1 60 5 208 230 3 60 Options GP Base unit with tin plated indoor coil hairpins and stainless steel HX TP Base unit with tin plated indoor coil hairpins Single Phase Only Major Seri...

Page 4: ...eflecting the effects of circulating fan heat Ratings are based on Cooling Standard 80 F 26 7 C db 67 F wb 19 4 C indoor entering air temperature and 95 F db 35 C outdoor entering air temperature 2 Be...

Page 5: ...IZER COIL FILTER SIDE VIEW CAULK BOTTOM CORNER OF ECONOMIZER ON EACH SIDE BASE COIL FLANGE ON BASE DETAIL ECONOMIZER FI LTER EV APORATOR COIL TOP FILTER RACK BEND FLANGE AT 90 SCREW TO DIVIDER WITH 1...

Page 6: ...17 3 7 3 17 4 7 3 17 4 7 3 17 4 7 3 17 5 6 INDOOR BLOWER Nominal Cooling Airflow Cfm Size in Size mm Motor HP RPM 800 10x10 254x254 1 2 1050 800 10x10 254x254 1 2 1050 1000 10x10 254x254 1 2 1050 100...

Page 7: ...48VLU E 48VLU F Ultra Low NOx Product Data Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 7 Unit Dimensions 24 36 A200161...

Page 8: ...48VLU E 48VLU F Ultra Low NOx Product Data Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 8 Unit Dimensions 42 60 A200157...

Page 9: ...as required to unit being installed 3 Roof curb is made of 16 gauge steel 4 Attach ductwork to curb flanges of duct rest on curb 5 Insulated panels 1 in 25 4 mm thick fiberglass 1 lb density Accessor...

Page 10: ...00 Btuh and a SHC of 27 400 Btuh Calculate SHC correction if required using Note 4 under Cooling Capacities tables SELECT HEATING CAPACITY OF UNIT TO PROVIDE DESIGN CONDITION REQUIREMENT In the Heatin...

Page 11: ...70 1 55 27 20 13 77 1 76 24 84 12 86 1 99 22 48 11 95 2 24 19 68 10 89 2 51 17 14 9 92 2 77 800 57 13 8 24 74 24 74 1 57 22 92 22 92 1 77 21 02 21 02 1 99 18 78 18 78 2 19 16 65 16 65 2 42 14 70 14 7...

Page 12: ...23 74 19 09 3 02 71 21 7 33 22 18 60 2 02 31 86 18 10 2 24 30 33 17 53 2 48 28 62 16 90 2 76 26 55 16 13 3 08 1000 57 13 9 28 61 28 61 2 01 27 47 27 47 2 22 26 20 26 20 2 47 24 68 24 68 2 75 22 66 22...

Page 13: ...95 2 46 40 11 20 71 2 72 37 12 19 45 3 00 34 07 18 16 3 32 30 95 16 85 3 69 27 81 15 51 4 11 1150 57 13 8 36 19 36 19 2 46 33 98 33 98 2 71 31 67 31 67 3 00 29 30 29 30 3 32 26 84 26 84 3 70 24 34 24...

Page 14: ...17 2 66 45 92 23 18 3 05 43 20 22 16 3 52 40 37 21 10 4 06 37 44 20 00 4 70 34 27 18 84 5 44 1350 57 13 8 40 50 40 50 2 58 38 39 38 39 2 95 36 24 36 24 3 40 34 01 34 01 3 92 31 54 31 54 4 51 28 67 28...

Page 15: ...79 3 18 53 50 27 36 3 56 49 89 25 89 3 99 46 16 24 36 4 48 42 23 22 80 5 04 37 37 21 00 5 64 1550 57 13 8 47 02 47 02 3 17 44 27 44 27 3 54 41 50 41 50 3 96 38 53 38 53 4 44 34 79 34 79 4 92 30 91 30...

Page 16: ...58 3 78 66 06 32 25 4 31 61 55 30 87 4 93 56 94 29 39 5 64 52 21 27 88 6 45 47 19 26 29 7 37 2000 57 13 8 59 44 59 44 3 78 55 93 55 93 4 31 52 41 52 41 4 92 48 83 48 83 5 62 44 92 44 92 6 44 39 97 39...

Page 17: ...System KW is total of indoor and outdoor unit kilowatts LEGEND BF Bypass Factor edb Entering Dry Bulb Ewb Entering Wet Bulb kW Total Unit Power Input SHC Sensible Heat Capacity 1000 Btuh TC Total Cap...

Page 18: ...m use U S A column 2001 to 3000 ft 611 to 914 m 0 to 2000 0 610 m 45 000 Orifice No Qty 0 125 in Manifold Press in W C 3 2 3 8 60 000 Orifice No Qty 28 1 Manifold Press in W C 3 2 3 8 89 000 Orifice...

Page 19: ...lternate Heating CFM 840 759 677 600 505 411 293 x x x BHP 0 14 0 15 0 16 0 16 0 17 0 17 0 18 x x x Gas Heat Rise F 53 NA NA NA NA NA NA NA NA NA Gas Heat Rise C 30 NA NA NA NA NA NA NA NA NA Medium R...

Page 20: ...6 1151 1115 1075 1039 1001 957 914 870 BHP 0 34 0 34 0 35 0 36 0 37 0 37 0 38 0 39 0 40 0 41 Gas Heat Rise F 37 38 39 40 42 43 45 47 49 52 Gas Heat Rise oC 20 21 22 22 23 24 25 26 27 29 Med High Orang...

Page 21: ...1264 1213 1159 BHP 0 40 0 42 0 43 0 44 0 45 0 46 0 47 0 48 0 49 0 50 48090 35 65 19 36 Low Blue CFM 644 552 461 376 301 235 x x x x BHP 0 06 0 07 0 07 0 08 0 08 0 09 x x x x Gas Heat Rise F NA NA NA...

Page 22: ...5 0 66 0 67 0 69 0 70 0 71 0 73 Gas Heat Rise F NA NA NA NA NA NA NA NA NA NA Gas Heat Rise C NA NA NA NA NA NA NA NA NA NA High Black High Static Cooling Only CFM 2271 2241 2206 2171 2134 2080 1973 1...

Page 23: ...1800 CFM 16x24x1 14x24x1 406x610x25 356x610x25 3 5 4 0 0 10 0 11 0 12 0 13 0 14 0 16 0 16 1500 2200 CFM 16x24x1 18x24x1 406x610x25 457x610x25 5 0 0 15 0 17 0 18 0 20 0 21 0 22 0 23 0 23 Filter Pressur...

Page 24: ...tion do not require duct covers Airflow Units are draw thru in the cooling mode and blow thru in the heating mode Maximum cooling airflow To minimize the possibility of condensate blow off from the ev...

Page 25: ...7 79 1 05 5 8 0 70 27 8 40 3606050 208 230 3 60 197 253 10 4 73 1 05 5 8 0 70 19 9 30 4206030 208 230 1 60 197 253 16 7 109 1 07 3 8 0 70 25 8 40 4206050 208 230 3 60 197 253 11 2 88 1 05 3 8 0 70 18...

Page 26: ...48VLU F Ultra Low NOx Product Data Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 26 Connection Wiring Schematic 208 230 1 60...

Page 27: ...E 48VLU F Ultra Low NOx Product Data Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 27 Ladder Wiring Schematic 208 230 1 60 A2...

Page 28: ...48VLU F Ultra Low NOx Product Data Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 28 Connection Wiring Schematic 208 230 3 60...

Page 29: ...E 48VLU F Ultra Low NOx Product Data Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 29 Ladder Wiring Schematic 208 230 3 60 A2...

Page 30: ...satisfied and W is de energized the pre mix burner will stop firing and the indoor evaporator fan motor shuts off after a 90 second time off delay Please note that the IGC has the capability to automa...

Page 31: ...ate trap Fans The evaporator fan shall be a multi speed direct drive as shown on equipment drawings Fan wheel shall be made from steel be double inlet type with forward curved blades with corrosion re...

Page 32: ...on power failure 6 Filter Rack Kit Shall provide filter mounting for downflow applications Offered as a field installed accessory 7 Flat Roof Curb Curbs shall have seal strip and a wood nailer for fla...

Reviews: