United CoolAir VariCool EZ-Fit Series Manuals

Manuals and User Guides for United CoolAir VariCool EZ-Fit Series. We have 2 United CoolAir VariCool EZ-Fit Series manuals available for free PDF download: Installation, Operation And Maintenance Manual

United CoolAir VariCool EZ-Fit Series Installation, Operation And Maintenance Manual (66 pages)

Variable Air Volume Water-Cooled, Water Source Heat Pump Refrigerant R-454B

Brand: United CoolAir | Category: Heat Pump | Size: 4 MB

Table of Contents
2
Safety Introduction and Labeling Guide
3
Product Compliance Statements
3
R-454B Refrigerant Information
4
Labeling on Units
7
Electrical Diagram
8
General Information
9
Handling
9
Installation Location
9
Product Specifications
10
Service Clearances
11
Condensate Drain
12
Physical Data
13
Dimensions and Weights
14
Mounting and Placement
16
Mounting Options
16
Cabinet Vibration Isolation
16
Assembly Sequence
18
Evaporator Section
18
Gasket Material
18
Compressor/Condensing Section
18
Resealable Refrigerant Fittings
19
3D-Intelliclamps
20
Blower Section
23
Duct Connections
23
Water Requirements
24
Electrical and Controls
25
Calculating MCA and MOP
26
Power Wiring
27
Transformer
27
Voltage Unbalance
27
High Duct Static Pressure Switch
27
Low Voltage Control Devices
27
Wall Display
28
BMS Applications
28
Static Pressure Transducer
28
Supply Air Temperature Sensor
28
Return Air Temperature Sensor
28
Outdoor Temperature / Humidity Sensor
29
Smoke Detector
29
Remote Start/Stop
29
Water Flow Switch Installation
29
Sequence of Operation Guides
30
Water System Quality
31
R-454B Guidelines
32
Minimum Room Area
33
Minimum Installation Area
33
Minimum Clearance for Units with Electric Heat
33
Required Area for Installation
33
Minimum Rated Airflow
35
Minimum Installation Requirements
37
Minimum Installation Height
37
Equipment Servicing
37
Removal of Ignition Sources
37
Personal Awareness and Work Area
37
Checking for Presence of Refrigerant
37
Presence of a Fire Extinguisher
37
No Ignition Sources
37
Ventilated Areas
37
Checks to Refrigerating Equipment
37
Repairs to Sealed Components
38
Repairs to Intrinsically Safe Components
38
Cabling
38
Detection of Flammable Refrigerants
38
Removal and Evacuation
38
Recovery
39
Charging Procedures
39
Labeling
40
Refrigerant Detection System (RDS)
40
RDS System Components
40
RDS Sequence
41
RDS System Manual Test
41
A2L Alarm - Field Interlock
41
Mitigation Strategy
42
A2L Alarm and Reset
42
Maintenance Procedures
43
Air Filters
43
Blower Lubrication Belt Driven (DWDI)
43
Belt Tensioning
44
Direct Drive Blowers
44
Drain Pan
45
Evaporator Coil
45
Condenser
45
Waterside Economizer Coil
46
Water Valves
46
Refrigerant System
46
Operation Verifications Checklist
47
Troubleshooting
48
Limited Warranty
49
Pre-Start-Up Checklist
51
Start-Up Procedures
52
Water Cooled Startup Form
55
R-454B Pressure / Temperature Chart
58
Nomenclature
60
Product Maintenance Log
61
Appendix
63
Electrical Diagram (for Reference Only / Sample)
64

United CoolAir VariCool EZ-Fit Series Installation, Operation And Maintenance Manual (43 pages)

Variable Air Volume Water-Cooled, Water Source Heat Pump

Brand: United CoolAir | Category: Heat Pump | Size: 3 MB

Table of Contents
3
Contents
3
Wiring Diagram
4
Safety Introduction and Labeling Guide
5
General Information
6
Inspection of Equipment
6
Handling
6
Location
6
Application Data
6
Service Clearances
7
Single Modules
7
Dual Modules
7
Condensate Drain
8
Physical Data
9
Dimensions & Weight
10
Mounting and Placement
12
Mounting Options
12
Cabinet Vibration Isolation Method Options
12
Suggested Assembly Sequence
14
Evaporator Section
14
Gasket Material
14
Compressor / Condensing Section
14
Resealable Refrigerant Fittings
15
3D-Intelliclamps
16
Blower Section
19
Duct Connections
19
Water Requirements
19
Water Piping
20
Electrical and Controls
21
Power Wiring
21
Transformer
22
Voltage Unbalance
22
High Duct Static Pressure Switch
22
Low Voltage Control Devices
22
Wall Display
22
BMS Applications
23
Static Pressure Transducer
23
Supply Air Temperature Sensor
23
Return Air Temperature Sensor
23
Sequence of Operation Manuals
23
Single-Zone Variable Air Volume
23
Multi-Zone Variable Air Volume
23
Constant Air Volume
23
Water Flow Switch Installation
24
Maintenance Procedures
25
Filters
25
DWDI Blowers
25
Lubrication
25
Belt Driven (DWDI)
25
Belt Tensioning
26
Direct Drive Blowers
26
Drain Pan
27
Evaporator Coil
27
Condenser
27
Water Side Economizer Coil
28
Water Valves
28
Refrigerant Systems
28
Operations Verification Check List
29
Troubleshooting Guide
30
Limited Warranty
33
Water-Cooled Unit
35
Start-Up Procedures
36
Product Nomenclature
40
Maintenance Log
41

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