Uponor for Radiant Cooling Systems 102

Outline Fundamentals review FEA Analysis Case Studies Piping CCN Controls Web Link to Uponor DC Specifications Submittals Design Request Form

Fundamentals review Load – 12 to 14 Btuh/sqft, up to 32 Btuh/sqft Surface Temperature – 66 o F  67deg occupied, 65 unoccupied (ASHRAE ) Average Water Temperature – 55 to 58 deg Dew Point – safety factor, keep water temperature 2 deg. Above dew point Spacing – 6 OC (max 9 OC) Loop Lengths – ft for 5/8” Energy Equation – Btuh = 500 x gpm x dt Size of pipe – 5/8” typical Design differential temperatures  5 o F - 8 o F for cooling

FEA Analysis

Case Study Link Urban Outfitters HQ Uponor Radiant Heating /Cooling 53 Tons of Cooling 630 MBH of Heating Central Heating and Cooling Plant to Serve the Campus

URBN - Building 543 Challenges North / south glass High clerestory glass Open mall area Humidity producers Large volumes Aesthetic demands

URBN - Building 543 Solutions Radiant heating and cooling slab Air side cooling for humidity control Draft barriers at occupied zones Vertical discharge diffusers

URBN – Slab details 53 tons of cooling 630 MBH of heating 14 manifolds, each with up to 10 loops at ~ 350 ft each loop Thermal breaks at radiant slab edge Embedded floor surface temperature sensors Space dew point sensors

URBN – Loop layout

URBN Solutions

Case Study Link Uponor Distribution Center Radiant Heating/Cooling AquaPEX Plumbing System 285,000 Sq Ft | LEED Silver Best in Real Estate Award

Uponor DC - Challenges Office next to warehouse Floor to ceiling windows Cubicles Carpet Solar gain Lobby Pressurization problems

Uponor DC - Solutions Radiant heating and cooling slab Air side for latent, portion of sensible and ventilation load  RTU CCN controlling Radiant system and communicating with BAS system

Piping – Water temperature mixing

Piping – Mixing with htg / clg switch over

Piping – Primary (building) / Secondary Hot Water Chilled Water Primary Pump

CCN Controls – Zoning by pump A ( < 3 amp )

CCN Controls – Zoning by pump B ( > 3 amps)

CCN Controls – Zoning by valve with common pump (1 or 2 pumps)

CCN Controls – Zoning by thermal actuator on manifold

CCN Controls – Zoning

CCN – Zoning + water temperature control

CCN – Communication available to BAS CCN Thermostats  Mode  Temperatures – Operative – Slab – Humidity  All physical and software points – i.e. mixing valve position – Pump status – Supply and return temperatures

Specification

Submittals

Questions? Thank you