Step 2 - Install Roof Curb
CONTENTS
SAFETY CONSIDERATIONS
INSTALLATION
END SIDE
Fig. 1 - Assembling the Roof Curb
1. All dimensions are in inches 2. Roof curb shipped unassembled
Fig. 2 - Roof Curb - 62M040 for Stand-Alone Applications
or Units Coupled with Rooftop Units 15 Tons and Above
Fig. 3 - Roof Curb - 62M075-950 for Vertical Stand-Alone Applications
Fig. 6 - Roofing Materials - Recommendation
Fig. 5 - Roof Curb - 62M075-285 Units 3 to 121/2 Ton Rooftop Units
REQUIRED SERVICE CLEARANCES
Fig. 7 - 62MB,MC040 Indoor Unit Dimensions
VIEW A-A
REQUIRED SERVICE CLEARANCES
Fig. 8 - 62MD,ME040 Outdoor Unit Dimensions
VIEW A-A
REQUIRED SERVICE CLEARANCES
Fig. 9 - 62MB,MC075,120 Indoor Unit Dimensions
VIEW A-A
REQUIRED SERVICE CLEARANCES
Fig. 10 - 62MD,ME075,120 Outdoor Unit Dimensions
VIEW A-A
VIEW A-A
Fig. 11 - 62MB,MC170-285 Indoor Unit Dimensions
REQUIRED SERVICE CLEARANCES
REQUIRED SERVICE CLEARANCES
Fig. 12 - 62MD,ME170-285 Outdoor Unit Dimensions
DOOR
Fig. 13 - 62MB,MC330-640 Indoor Unit Dimensions
REQUIRED SERVICE CLEARANCES
VIEW A-A
REQUIRED SERVICE CLEARANCES
Fig. 14 - 62MD,ME330-640 Outdoor Unit Dimensions
VIEW A-A
CLEARANCES
Fig. 15 - 62MB,MC750,950 Indoor Unit Dimensions
REQUIRED SERVICE
VIEW A-A
RETURN AIR
Fig. 16 - 62MD,ME750,950 Outdoor Unit Dimensions
REQUIRED SERVICE CLEARANCES
VIEW A-A
ROOFTOP SIZE
TRANSITION DETAIL
Top View
ROOFTOP UNIT MODEL
ROOF CURB LOCATION DETAIL
TRANSITION DETAIL
Top View
TRANSITION DETAIL
Supply
Return
Top View
TRANSITION DETAIL
ROOF CURB LOCATION DETAIL
Support
Supply Air Return Air
A 37 3/16
ROOF CURB LAYOUT
TOP VIEW
62MA-900---004
ROOF CURB LOCATION DETAIL
2 3/4
004-007
ROOF CURB LOCATION DETAIL
Curb Detail
Supply Return
TOP VIEW
ROOF CURB LOCATION DETAIL
48/50PG
TOP VIEW
ROOF CURB LOCATION DETAIL
Curb Detail
Locator Pieces included with ERV curb, must be watertight
Rooftop ROOF CURB LOCATION DETAIL
Rooftop Unit
Rainhoods for optional economizer
Page
Fig. 28 - 62MD,ME170-285 Coupled with Carrier 48/50TJ,TM016-028
and 48/50HJ015,017 Vertical Discharge Rooftop Unit
ERV Curb
ROOF CURB LOCATION DETAIL
ROOF CURB LOCATION DETAIL
TOP VIEW
ROOF CURB LOCATION DETAIL
Fig. 31 - 62MD,ME170-285 Coupled with Carrier 48/50PG20-28
and 48/50HJ020-028 Horizontal Discharge Rooftop Unit
Top View
SUPPLY
Top View
Fig. 32 - 62MD,ME170-285 Coupled with Carrier 48/50PG20-28
and 48/50HJ020-028 Vertical Discharge Rooftop Unit
Transition
ROOF CURB LOCATION DETAIL
Rooftop Unit curb ROOF CURB LOCATION DETAIL
Rooftop Unit Curb ROOF CURB LOCATION DETAIL
Vertical Discharge Rooftop Unit
ROOF CURB LOCATION DETAIL
TOP VIEW
55 13/32
ROOF CURB LOCATION DETAIL
TOP VIEW
and 48/50HJ020-028 Horizontal Discharge Rooftop Unit
Fig. 38 - 62MD,ME330-640 Coupled with Carrier 48/50PG20-28
Top View
Top View
and 48/50HJ020-028 Vertical Discharge Rooftop Unit
Fig. 39 - 62MD,ME330-640 Coupled with Carrier 48/50PG20-28
Top View
Top View
Return
TOP VIEW
ROOF CURB LAYOUT
SIDE VIEW
RETURNAIR
Fig. 41 - 62MD,ME750,950 Coupled with Carrier 48/50TJ,TM016-028
and 48/50HJ015,017 Vertical Discharge Rooftop Unit
ROOF CURB LOCATION DETAIL
and 48/50HJ020-028 Vertical Discharge Rooftop Unit
Fig. 42 - 62MD,ME750,950 Coupled with Carrier 48/50PG20-28
Top View
Top View
and 48/50HJ020-028 Vertical Discharge Rooftop Unit
Top View
Fig. 43 - 62MD,ME750,950 Coupled with Carrier 48/50PG20-28
Top View
CURB DETAIL
RETURN AIR SUPPLYAIR
Horizontal Discharge - Stand-Alone Unit
Side View
Fig. 45 - 62M Airflow in Stand-Alone Applications
Top View
RIGGING LIFTING EYES
Fig. 46 - Rigging Details
RIGGING FOR ERV INSTALLATION
RIGGING HOLES ERV BASE RAIL
Table 1 - Physical Data
48/50TJ, HJ 3 to 121/2 Ton Rooftop Units with Economizers
Step 5 - Make Electrical Connections
Table 2 - Electrical Data Without VAV Option
Table 2 - Electrical Data Without VAV Option cont
Table 2 - Electrical Data Without VAV Option cont
Fuse Size†
Table 3 - Electrical Data With VAV Option
Table 3 - Electrical Data With VAV Option cont
Table 3 - Electrical Data With VAV Option cont
Important Remove
Fig. 48 - Economizer End Switch Wiring
Fig. 49 - Economizer Switch Wiring
Fig. 47 - Jumper Plug Detail
Fig. 50 - Typical Wiring Schematic, High Voltage
Fig. 51 - Typical Wiring Schematic, 24-V Control Circuit
High Voltage Low Voltage
1. Thermostat is factory set at -5 degrees. Range is -30 to 100 F
DISCONNECT FIOP
2. MInimum airflow is .05 in. wg
START-UP
Energy Recovery Wheel
Text continued on page
Fig. 54 - 62M040-120 ERV Wheel Pressure Drop
Drop
Pressure
Airflow cfm
Drop
in. wg
Airflow
Fig. 56 - 62M550-950 ERV Wheel Pressure Drop* cont
AIirflow
Fig. 57 - 62M040 Supply Air Fan Performance Curves
Fig. 58 - 62M040 Exhaust Air Fan Performance Curves
External Static Pressure in. wg
Airflow
External Static in. wg
Fig. 59 - 62M075 Supply Air Fan Performance Curves
Fig. 60 - 62M075 Exhaust Air Fan Performance Curves
External Static in. wg
Fig. 61 - 62M120 Supply Air Fan Performance Curves
Fig. 62 - 62M120 Exhaust Air Fan Performance Curves
External Static in. wg
External Static in. wg
Fig. 63 - 62M170 Supply Air Fan Performance Curves
Fig. 64 - 62M170 Exhaust Air Fan Performance Curves
Airflow
Airflow
Fig. 65 - 62M225 Supply Air Fan Performance Curves
Fig. 66 - 62M225 Exhaust Air Fan Performance Curves
External Static in. wg
External Static in. wg
Fig. 67 - 62M285 Supply Air Fan Performance Curves
Fig. 68 - 62M285 Exhaust Air Fan Performance Curves
Airflow
External Static in. wg
Fig. 69 - 62M330 Supply Air Fan Performance Curves
Fig. 70 - 62M330 Exhaust Air Fan Performance Curves
Airflow
External Static in. wg
Fig. 71 - 62M430 Supply Air Fan Performance Curves
Fig. 72 - 62M430 Exhaust Air Fan Performance Curves
External Static in. wg
Airflow
Fig. 73 - 62M550 Supply Air Fan Performance Curves
Fig. 74 - 62M550 Exhaust Air Fan Performance Curves
External Static in. wg
External Static in. wg
Fig. 75 - 62M640 Supply Air Fan Performance Curves
Fig. 76 - 62M640 Exhaust Air Fan Performance Curves
Airflow
External Static in. wg
Fig. 77 - 62M750 Supply Air Fan Performance Curves
Fig. 78 - 62M750 Exhaust Air Fan Performance Curves
Airflow
External Static in. wg
Fig. 79 - 62M950 Supply Air Fan Performance Curves
Fig. 80 - 62M950 Exhaust Air Fan Performance Curves
Airflow
Operating Sequence
Fig. 81 - Blower Motor Pulley Adjustment Fig. 82 - Belt Alignment
Fig. 83 - Unlocking the Segment Retaining Brackets
SERVICE
Removing Wheel Segments for Cleaning 62M170-950 Units
Fig. 84 - 62M040 Energy Transfer Wheel Assembly
Fig. 87 - Inserting a Segment of the Wheel
Installing Wheel Segments 62M170-950 Units
Fig. 85 - 62M075,120 Energy Transfer Wheel Assembly
Fig. 86 - Using a Stop on the Wheel
Fig. 89- Latch Segment Retaining Brackets
Wheel Drive Motor and Pulley Replacement 62M170-095 Units
Belt Replacement
Fig. 88 - Motor Side View of Segment
Fig. 91 - Belt Replacement Diameter Seals Removed
MAINTENANCE
Rotation To Adjust Adjusting Screws Feeler Gage
Fig. 92 - Diameter Seal Adjustment
Printed in U.S.A
Copyright 2006 Carrier Corporation
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START-UP CHECKLIST