submittal - trent tech

CostGard™ Condensate Drain Seal

for

Roof Top Unit (RTU)

Draw-Through HVAC Systems

SUBMITTAL

Trent Technologies, Inc. 15939 FM 2493, Tyler, TX 75703

903-509-4843 [email protected] www.TrentTech.com

Rev.20191210 © 2019 Trent Technologies, Inc. All Rights Reserved.

The CostGard™ Condensate Drain Seal was developed

specifically to replace the condensate trap on draw-through

HVAC systems. Unlike a condensate trap, it uses an air seal

instead of a water seal and thereby eliminates costly operational

and health related problems needlessly tolerated by facility

managers for more than half a century. It does this by reducing

(1) service calls, (2) maintenance requirements, (3) damage to

equipment, (4) damage to surrounding property, and (5) threats

to healthy indoor air quality.

Operation

The CostGard™ Condensate Drain Seal is the result of over four

years of engineering research and development. It makes use of

the hydraulic and pneumatic forces present in all draw-through

air handlers. It is simple, effective and reliable. It has no moving

parts. How it operates is illustrated in Figure 1.

Advantages Over a Trap

When used in place of a condensate trap, the CostGard™

Condensate Drain Seal significantly reduces the cost of owning

and operating draw-through HVAC systems. And, it removes a

major and serious contributor to poor indoor air quality. The need

to replace the condensate trap with an effective and reliable drain

seal is well recognized by many in the HVAC industry. Many of

the problems caused by condensate traps are clearly stated in

ASHRAE Standard 62-89R, paragraph 5.6.4, which reads as

follows:

FIGURE 1

“Condensate traps exhibit many failure modes that can impact on indoor air quality. Trap failures due to freeze-up, drying out, breakage, blockage, and/or improper installation can compromise the seal against air ingestion through the condensate drain line. Traps with insufficient height between the inlet and outlet [design deficiency] on draw-through systems can cause the drain to back-up when the fan is on, possibly causing drain pan overflow or water droplet carryover into the duct system. The resulting moist surfaces can become sources of biological contamination. Seasonal variations, such as very dry or cold weather, may adversely affect trap operation and condensate removal.”

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During both heating and cooling operations, the air seal is formed

as follows:

Fresh air from the fan discharge is supplied to point (a) at a

pressure slightly above atmospheric. Some of the air flows away

from the HVAC unit; thus, preventing ingestion of outside air. A

portion of the air returns to the HVAC unit, passing through points

(b) and (c). The quantity of air returning to the unit is minimized

by the high-pressure loss in the mitered elbows. This pressure

loss plus the air flowing through the bypass connected at point

(c) ensures that the air entering the condensate drip pan does

not produce blowing and geysering and an aerosol mist.

Condensate flows through the device without being trapped. At

the same time, the counter-flow of condensate and air creates a

pulsing action that ensures free passage of debris. Hence, the

potential for freeze-up and flow blockage (common problems with

traps) is nil.

The ASHRAE Standard addresses only “building ventilation and

indoor air quality”. However, the cost impact of trap failures on

system maintenance and property damage is clearly evident.

There are many causes of trap failures. Such failures are much

too familiar to facility managers and HVAC maintenance

personnel. The maintenance effort required to deal with these

destructive results is extremely demanding. In fact, trap

deficiencies are so numerous that successful maintenance is

often not feasible. Indeed, in some instances adequate

maintenance is not realistically possible.

The CostGard™ Condensate Drain Seal eliminates all the

problems caused by the condensate trap, including the following:

▪ Trap blockage and condensate pan overflow;

▪ Seal (trap) freeze-damage in outside locations;

▪ Ingestion of odorous and toxic gases through the condensate drain system;

▪ Condensate pan overflow due to negative pressure during start-up;

▪ Condensate blowing which produces an aerosol mist and causes biological contamination; and

▪ Shortened life of HVAC systems.

Eliminating these problems is an enormous cost savings for the

building owner as a result of fewer service calls, reduced

maintenance effort, less property damage, increased equipment

life, and improved indoor air quality.

RTU System Kit


The CostGard™ Condensate Drain Seal RTU System Kit is designed for draw-through air handlers, up to 30 tons, with 3/4” and 1” drains. For outdoor use, each kit consists of a UV inhibited CostGard™ Condensate Drain Seal, UV inhibited pipe and fittings, support brackets, grommets, and detailed installation instructions. As shown in the configuration chart below, 5.6” of depth is required for installation. Static pressure limits in the drain pan compartment range from -2.0” to -2.2” w.c. RTU System Kits are available for Carrier, Lennox, Trane, York, and others.

Drain Size Static Pressure Limit

3/4” -2.0” w.c.

1” -2.2” w.c.

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RTU System Kit - Configuration Chart

RTU System Kit

CostGard™ Configuration 56


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Installation Fundamentals The CostGard™ Condensate Drain Seal RTU System Kit is connected to the drain connection of the HVAC unit the same as the

condensate trap. However, in order to form an air seal, in place of a water seal, two other pipe connections are required. For most

applications these connections are quite simple; however, some can be more challenging. The basic criteria for a successful installation

are stated below:

Pipe Connections

The CostGard™ Condensate Drain Seal is connected to the air handler with UV inhibited pipe at the following three points:

1) The condensate drain pan connection where condensate traps are usually connected;

2) A hole cut into the fan/drain pan compartment between the cooling coil and the supply fan (negative pressure);

3) A hole cut into the supply air plenum or duct downstream of the fan (positive pressure).

Pipe Routing

All pipes must be routed in such a way that they do not interfere with service access doors.

Pipe Supports

The pipe must be supported and fixed in place to minimize potential damage to the piping and the CostGard™ Condensate Drain Seal.


RTU System Kit

Carrier Lennox

Trane York

RTU System Kit - Installation Examples

Carrier System Kit Pricing

Carrier Model Number

Model Series Tons CostGard™ Model

Number List Price

48ES - 24-60 Comfort 2 to 5 tons CPC-018-060-77 $158.00

48EZ - 30-60 Comfort 2-1/2 to 5 tons CPC-018-060-77 $158.00

48FC - 04-07 WeatherMaker 3 to 6 tons CWA-004-014-77 $158.00

48GC - 04-06 WeatherMaster 3 to 5 tons CWA-004-014-77 $158.00

48HC - 04-14 WeatherMaster 3 to 12-1/2 tons CWA-004-014-77 $158.00

48HC - 17-28 WeatherMaster 15 to 25 tons CWC-014-030-77 $158.00

48KC - 04-06 WeatherMaker 3 to 5 tons CWA-004-014-77 $158.00

48LC - 04-06 WeatherExpert 3 to 5 tons CWA-004-014-77 $158.00


48LC - 14-26 WeatherExpert 12-1/2 to 23 tons CWC-014-030-77 $158.00

48TC - 07-16 WeatherMaker 6 to 15 tons CWA-004-014-77 $158.00

48TC - 17-30 WeatherMaker 15 to 27-1/2 tons CWC-014-030-77 $158.00

48VG - 24-60 Performance 2 to 5 tons CPC-018-060-77 $158.00

48VL - 24-60 Performance 2 to 5 tons CPC-018-060-47 $158.00

48VR - 24-60 Performance 2 to 5 tons CPC-018-060-77 $158.00

48VT - 24-60 Performance 2 to 5 tons CPC-018-060-77 $158.00

50ES - 30-60 Comfort 2-1/2 to 5 tons CPC-018-060-77 $158.00

50EZ - 30-60 Comfort 2-1/2 to 5 tons CPC-018-060-77 $158.00

50FC - 04-07 WeatherMaker 3 to 6 tons CWA-004-014-77 $158.00

50GC - 04-06 WeatherMaster 3 to 5 tons CWA-004-014-77 $158.00

50HC - 04-14 WeatherMaster 3 to 12-1/2 tons CWA-004-014-77 $158.00

50HC - 17-28 WeatherMaster 15 to 25 tons CWC-014-030-77 $158.00

50KC - 04-06 WeatherMaker 3 to 5 tons CWA-004-014-77 $158.00



50LC - 14-26 WeatherExpert 12-1/2 to 23 tons CWC-014-030-77 $158.00

50TC - 07-16 WeatherMaker 6 to 15 tons CWA-004-014-77 $158.00

50TC - 17-30 WeatherMaker 15 to 27-1/2 tons CWC-014-030-77 $158.00

50TC - 18-29 WeatherMaker 15 to 25 tons CWC-014-030-77 $158.00

50VG - 24-60 Performance 2 to 5 tons CPC-018-060-77 $158.00

50VL - 24-60 Performance 2 to 5 tons CPC-018-060-77 $158.00

50VR - 24-60 Performance 2 to 5 tons CPC-018-060-77 $158.00

50VT - 24-60 Performance 2 to 5 tons CPC-018-060-77 $158.00

If the Carrier model number is not listed above, please contact Trent Technologies, Inc.

Carrier System Kits will also fit most Arcoaire, Bryant, ComfortMaker, and Tempstar models.

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Lennox System Kit Pricing

Lennox Model Number


Number List Price

LCH - 036-074 Energence 3 to 6 tons LEAB-036-150-17 $173.00

LCH - 092-152 Energence 7-1/2 to 12-1/2 tons LEAB-036-150-17 $173.00

LCH - 156-300 Energence 13 to 25 tons LEC-156-300-11 $173.00

KCA - 036-090 Landmark 3 to 7-1/2 tons LEAB-036-150-17 $173.00

KCA/B - 092-150 Landmark 7-1/2 to 12-1/2 tons LEAB-036-150-17 $173.00

KCA/B - 156-300 Landmark 13 to 25 tons LEC-156-300-11 $173.00

KCB - 024-090 Landmark 2 to 7-1/2 tons LEAB-036-150-17 $173.00

ZCA/B - 036-074 Raider 3 to 6 tons CWA-004-014-77 $158.00

ZCA/B - 092-150 Raider 7-1/2 to 12-1/2 tons CWA-004-014-77 $158.00

LGH - 036-074 Energence 3 to 6 tons LEAB-036-150-17 $173.00

LGH - 092-152 Energence 7-1/2 to 12-1/2 tons LEAB-036-150-17 $173.00

LGH - 156-300 Energence 13 to 25 tons LEC-156-300-11 $173.00

KGA - 036-090 Landmark 3 to 7-1/2 tons LEAB-036-150-17 $173.00

KGA/B - 092-150 Landmark 7-1/2 to 12-1/2 tons LEAB-036-150-17 $173.00

KGA/B - 156-300 Landmark 13 to 25 tons LEC-156-300-11 $173.00

KGB - 024-090 Landmark 2 to 7-1/2 tons LEAB-036-150-17 $173.00

ZGA/B - 036-072 Raider 3 to 6 tons CWA-004-014-77 $158.00

ZGA/B - 092-150 Raider 7-1/2 to 12-1/2 tons CWA-004-014-77 $158.00

KHA - 180-240 Landmark 15 to 20 tons LEC-156-300-11 $173.00

KHA/B - 092-150 Landmark 7-1/2 to 12-1/2 tons LEAB-036-150-17 $173.00

KHA - 072 Landmark 6 tons LEAB-036-150-17 $173.00

KHB - 024-074 Landmark 2 to 6 tons LEAB-036-150-17 $173.00

ZHA - 092-120 Raider 7-1/2 to 10 tons CWA-004-014-77 $158.00

ZHA/B - 036-072 Raider 3 to 6 tons CWA-004-014-77 $158.00

KDB - 024-060 Landmark 2 to 5 tons LEAB-036-150-17 $173.00

KDA/B - 092-122 Landmark 7-1/2 to 10 tons LEAB-036-150-17 $173.00

If the Lennox model number is not listed above, please contact Trent Technologies, Inc.

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Trane System Kit Pricing

Trane Model Number


Number List Price

4TC - 024-060 Impack 2 to 5 tons T4-018-060-77 $195.00

4WC - 024-060 Impack 2 to 5 tons T4-018-060-77 $195.00

4DC - 024-060 Impack 2 to 5 tons T4-018-060-77 $195.00

4YC - 024-060 Impack 2 to 5 tons T4-018-060-77 $195.00

THC - 037-067 Precedent 17+ 3 to 5 tons TP-033-120-77 $158.00

TSC - 037-067 Precedent 17+ 3 to 5 tons TP-033-120-77 $158.00

YHC - 037-067 Precedent 17+ 3 to 5 tons TP-033-120-77 $158.00

YSC - 037-067 Precedent 17+ 3 to 5 tons TP-033-120-77 $158.00

TZC - 036-120 Precedent eFlex 3 to 10 tons TP-033-120-77 $158.00

YZC - 036-120 Precedent eFlex 3 to 10 tons TP-033-120-77 $158.00

THC - 036-120 Precedent 3 to 10 tons TP-033-120-77 $158.00

TSC - 036-120 Precedent 3 to 10 tons TP-033-120-77 $158.00

YHC - 036-120 Precedent 3 to 10 tons TP-033-120-77 $158.00

YSC - 036-120 Precedent 3 to 10 tons TP-033-120-77 $158.00

WSC - 036-120 Precedent HP 3 to 10 tons TP-033-120-77 $158.00

WHC - 036-120 Precedent HP 3 to 10 tons TP-033-120-77 $158.00

DHC - 036-120 Precedent HP 3 to 10 tons TP-033-120-77 $158.00

TSD - 150 Voyager (Small) 12-1/2 tons TVS-150-11 $251.00

YSD - 150 Voyager (Small) 12-1/2 tons TVS-150-11 $251.00

TSD - 180-300 Voyager (Medium) 15 to 25 tons TVM-150-300-11 $251.00

YSD - 180-300 Voyager (Medium) 15 to 25 tons TVM-150-300-11 $251.00

THD - 150 Voyager (Medium) 12-1/2 tons TVM-150-300-11 $251.00

YHD - 150 Voyager (Medium) 12-1/2 tons TVM-150-300-11 $251.00

THD - 180-300 Voyager (Large) 15 to 25 tons TVL-150-301-11 $251.00

YHD - 180-300 Voyager (Large) 15 to 25 tons TVL-150-301-11 $251.00

WSD - 150-180 Voyager HP (Medium) 12-1/2 to 15 tons TVM-150-300-11 $251.00

WSD - 240 Voyager HP (Large) 20 tons TVL-150-301-11 $251.00

TZD - 150-210 Voyager eFlex (Large) 12-1/2 to 17-1/2 tons TVL-150-301-11 $251.00

YZD - 150-210 Voyager eFlex (Large) 12-1/2 to 17-1/2 tons TVL-150-301-11 $251.00

If the Trane model number is not listed above, please contact Trent Technologies, Inc.

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York System Kit Pricing

York Model Number


Number Price

D - E - 024-060 Affinity 2 to 5 tons YA-024-060-77 Call for Price

ZE - 036-072 Small Sunline 3 to 6 tons YS-036-072-71 Call for Price

XN - 036-060 Small Sunline 3 to 5 tons YS-036-072-71 Call for Price

ZX - 04-14 Sun Core 3 to 12-1/2 tons YPZ-04-14-77 Call for Price

ZQ - 04-06 Sun Core 3 to 5 tons YPZ-04-14-77 Call for Price

ZY - 04-12 Sun Core 3 to 10 tons YPZ-04-14-77 Call for Price

ZH - 037-150 Sun Pro 3 to 12-1/2 tons YP-037-150-17 Call for Price

ZJ - 037-150 Sun Pro 3 to 12-1/2 tons YP-037-150-17 Call for Price

ZR - 037-150 Sun Pro 3 to 12-1/2 tons YP-037-150-17 Call for Price

ZT - 037-061 Sun Pro 3 to 5 tons YP-037-150-17 Call for Price

ZF - 180-300 Large Sunline 15 to 25 tons YM-180-300-11 Call for Price

ZJ - 180-300 Large Sunline 15 to 25 tons YM-180-300-11 Call for Price

ZR - 180-300 Large Sunline 15 to 25 tons YM-180-300-11 Call for Price

Z - 2-4 Sun Select 25 to 40 tons YZ-32-34-15 Call for Price

If the York model number is not listed above, please contact Trent Technologies, Inc.

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