Johnson Controls ENVIRO-TEC MQL B Series Manuals

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Johnson Controls ENVIRO-TEC MQL B Series Manual (36 pages)

INDOOR AIR HANDLING UNIT

Brand: Johnson Controls | Category: Air Handlers | Size: 3 MB

Table of Contents
5
Section 1 - Introduction
9
Inspection
9
Introduction
9
General
9
Unit Identification
9
Hand Identification
9
Rigging and Handling
9
Storage
10
Assembling Equipment
11
Gasketing
11
Mounting Actuator
11
Mixing Box
11
FIGURE 3 - Assembly, Units Without Base Rails
11
FIGURE 4 - Assembly, Units with Base Rails
11
FIGURE 5 - Gasket Application
11
Section 2 - Installation
13
Installation
13
Suspended Units
13
Suspending Using Factory Base Rail
13
FIGURE 6 - Suspended Units
13
FIGURE 7 - Hand Identification
14
Suspending Using Field Supplied Supports
15
Internal Isolation
15
External Isolation
15
Service Clearance
15
Panel Removal
15
General Piping
15
FIGURE 8 - Remove Hold Downs
15
FIGURE 9 - Isolator Installation
15
DX Connection Steps
16
In the Field
16
Notes
16
Condensate Drain
16
Electrical Installation
16
FIGURE 10 - Drain Trap
16
Inspection & Start-Up Checklist
17
Section 3 - Startup
19
Electric Heat Start-Up
19
Before Start-Up Check
19
Start-Up
19
First Time Motor Startup
20
Air Balancing
20
Sheaves
20
Section 4 - Periodic Manintenance and Service
21
Periodic Maintenance and Service
21
General
21
After 48 Hours of Operation
21
Weekly
21
Every Month
21
Every Three to Six Months
21
Every Year
21
Drain Pan
22
Inspecting and Cleaning Drain Pans
22
Air Filters
22
Throwaway Filters
22
Fans
22
Inspecting and Cleaning Fans
22
TABLE 1 - Minimum Hex Head Bolt Torque in Lb-Ft - Grade 5 Bolt
22
Fan Bearings
23
Bearing Set Screw Alignment
23
Lubricating the Fan Bearing
23
Motor
23
General Inspection
23
TABLE 2 - Recommended Greasing Intervals of Fan Bearings
23
TABLE 3 - Recommended Greases for Various Operating Ranges
23
Lubrication and Bearings
24
Types of Grease
24
Lubrication Procedure
24
With Grease Outlet Plug
24
Without Grease Outlet Plug
24
Drives
25
Mounting Straight Bore Sheaves
25
FIGURE 11 - Mounting Sheaves
25
TABLE 5 - Recommended Motor Greasing Schedule
25
Mounting Split Tapper Sheaves
26
Adjust Variable Pitched Sheaves
26
FIGURE 12 - Sheave Alignment
26
FIGURE 13 - Split Tapper Sheave Mounting
26
Belts
27
Adjusting Belt Tension
27
How to Increase Belt Life
27
FIGURE 14 - Belt Tension
27
Coils
28
Steam, Hot Water and Chilled Water Coils
28
TABLE 6 - Determining Deflection Force
28
Refrigerant Coils
29
Winterizing Water Coils
29
Operating Guidelines
29
Operating Limits
29
Vibration Levels
29
Vibration Causes
30
Periodic Service and Maintenance
30
Application Recommendation for Coils
30
General
30
Water Cooling Coils
30
Direct Expansion Coils
30
TABLE 7 - Forward Curve Fan Data
30
TABLE 8 - Vibration Levels
30
Steam Coils
31
Water Heating Coils
32
Section 5 - Troubleshooting
33
TABLE 9 - MQL Troubleshooting Analysis
33

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Johnson Controls ENVIRO-TEC MQL B Series Manual (36 pages)

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