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Summary of Contents for valent VRC Series
- Page 1 MECHANICAL INSTALLATION OPERATION & MAINTENANCE VRC Series IOM-M2-0316 Part Number 478603...
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Page 2: Table Of Contents
Maintenance ..............13 Troubleshooting .............. 14 Motor ................14 Startup Documentation ..........15 Job Information ............. 15 Pre-Startup Checklist............ 16 Condenser Startup Form ..........16 Warranty ................17 Index................. 19 VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603... -
Page 3: Safety
20 TONS 25 TONS 30 TONS 35 TONS 40 TONS TYPE COOLING TYPE & AIR COOLED STANDARD CAPACITY REFRIGERATION AIR COOLED HIGH CAPACITY VOLTAGE 208/3/60 ELECTRICAL 230/3/60 460/3/60 575/3/60 VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603... -
Page 4: Clearances
Cables or chains should be at least double the length of the unit to prevent stress on the in property damage, serious injury, or death. Never lift units in windy conditions. structure. VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603... - Page 5 CHAIN ANGLE AT POINT OF LUG MUST NEVER EXCEED 20° FROM VERTICAL TEST LIFT UNIT TO CHECK FOR PROPER BALANCE AND RIGGING NEVER LIFT IN WINDY CONDITIONS VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603...
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Page 6: Installation
If the ventilator (indoor) unit is to be installed above or adjacent to a sound-critical area such as an office, precautions should be taken to sound insulate mechanical room walls, floor, or ceiling to minimize unit noise transmission. VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603... - Page 7 Minimum Pad Dimensions Unit 37.75 80.25 49.75 110.25 66.50 117.00 Dimensions in inches. Equipment Support Dimensions Unit 32.75 75.25 44.75 105.25 61.50 Dimensions in inches. VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603...
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Page 8: Electrical And Refrigeration Connections
The following diagrams show piping locations as well as suggested field penetration locations for high-voltage and low-voltage electrical connections. Refer to the Recommended Line Sizes table on page 11 for suggested piping diameters. Hatched area represents suggested location of field electrical penetrations. VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550... -
Page 9: Electrical Connections
All units require 3-phase power wiring in addition to the following control wiring. AHPC 1.0 AHPC 2.0 VPR/VRC Shielded Unshielded Total Shielded Unshielded Total Case Conductors Conductors Conductors Conductors Conductors Conductors VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603... -
Page 10: Refrigeration Connections
Piping should be installed according to accepted Chart on page 11 for base charge and practices and codes (consult ASHRAE handbook). approximate refrigerant addition per length of Valent is not responsible for interconnecting piping. interconnecting pipe. Piping/Charging Procedure Record the final charge on the Condenser Startup ▪... - Page 11 228,142 1 1/8 199,312 230,993 1 1/8 252,507 1 1/8 259,060 1 1/8 * Line size in this column = stub connection size on the VPR and VRC units. VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603...
- Page 12 *ft of line = The one-way line distance between the two units or the length of the liquid line alone. Use actual line length, not equivalent line length for charge calculations. Refrigeration Piping Schematic VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550...
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Page 13: Maintenance
If the paint is damaged, remove any corrosion and repaint the surface. Condenser Fans Check condenser fan blades for cracks, dirt buildup, or other damage. Clean fans blades if necessary to prevent imbalance. VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603... -
Page 14: Troubleshooting
Check across AC line. Consult power company; Line voltage too high step-down transformer may be required. Check across AC line. Consult power company; Line voltage too low step-up transformer may be required. VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603... -
Page 15: Startup Documentation
Startup Documentation Instructions Complete a single startup form for each unit and return along with the ventilator unit start up form (VPR IOM PN#472916, Air-Cooled DX Startup Form) to Valent via: US Mail E-mail Valent Startup Forms Subject: Valent Startup Forms ATTN: Valent Startup Forms OAPservices@unisoncomfort.com... -
Page 16: Pre-Startup Checklist
Note: Be sure to record the final charge on the charge sticker on the inside of the control panel doors in both units. Running Amps Nameplate Component Rotation Direction Amps Condensing Fan #1 Condensing Fan #2 Condensing Fan #3 Condensing Fan #4 VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603... -
Page 17: Warranty
Seller employee or its representative. In these situations, Unison will assist in the diagnosis of issues and provide support to the customer provided the customer issues a purchase order to cover Unison’s expenses in doing so. VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550... - Page 18 The ship date for the units noted above is . Please refer to the Unison Comfort Technologies terms and conditions of sales for additional details, conditions and exclusions. VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603...
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Page 19: Index
Startup forms Air-cooled equipment ..........16 Ductwork dimensions ............7 Checklist..............16 Installation Job information............15 Curb ................6 Startup instructions ............15 Pad ................6 Warranty ................17 VRC Series IOM IOM-M2-0316 Technical Support: (800) 789-8550 Part Number 478603... - Page 20 ©March 2016 ® Valent is a business of Unison™ Comfort Technologies For service inquiries, please contact: Unison™ Comfort Technologies Technical Service (800) 789-8550 OAPservices@unisoncomfort.com...
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