TM ClimaDry ClimaDry Whole House Dehumidification Option Tranquility 27 Tranquility 20 Applications Guide 97B0051N01 Revision: 18 April, 2008B Table of Contents Model Nomenclature Example 2 ClimaDry Schematic 7 ClimaDry Overview 3 TT Blower Data 8 ClimaDry Benefits 3 TS ECM Blower Data 9 ClimaDry Features 3 TS PSC Blower Data 10 ClimaDry Applications 3 Reheat Coil Pressure Drop Table 11 ClimaDry Sequence of Operation 5 TS Air Coil Face Area Table 11 ClimaDry Component Functions 6 W
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 TT V 0 7 2 A G D 0 1 D L K S Series Standard TT = Tranquility Two-Stage Scroll S = Standard Supply Air Flow & Motor Configuration Configuration V = Vertical Up H = Horizontal D = Vertical Down Unit Size 026, 038, 049, 064, 072 Motor ECM ECM ECM ECM Return Air Flow Configuration Revision Level L = Left Return R = Right Return A = Current Revision Voltage Heat Exchanger Options G = 208-230/60/1 Controls Cabinet 0 = Residential Coated Air Coil
Overview ClimaDry™ Whole House Dehumidification Overview Indoor Air Quality (IAQ) and Relative Humidity (RH) are increasingly becoming design issues that must be addressed by selecting heating and cooling equipment with advanced capabilities. The ClimateMaster ClimaDry™ reheat option (patent pending) offers unique features unlike anything currently available today. ClimateMaster’s ClimaDry reheat option is an innovative means of providing modulating reheat without the complication of refrigeration controls.
the only consideration necessary. In this case, sensible load is immaterial. Example latent capacities for a typical ClimateMaster heat pump are shown in table 1. ClimaDry is especially useful in Northern Climates, where the heat pump may be oversized in the cooling mode to provide enough heating capacity. Units with ClimaDry will compensate for these applications by operating as a whole house dehumidifier when necessary to maintain space Relative Humidity (RH).
ClimaDry Sequence Of Operation A heat pump equipped with ClimaDry can operate in three modes; cooling, cooling with reheat, and heating. The cooling/heating modes are like any other ClimateMaster WSHP. The reversing valve (“O” signal) is energized in cooling, along with the compressor contactor(s) and blower relay. In the heating mode the reversing valve is de-energized. Almost any thermostat will activate the heat pump in heating or cooling modes.
• • • • • 2nd Stage Cooling: A simultaneous call from (G), (Y1), (Y2), and (O) to the (G), (Y1), (Y2), and (O/W2) terminals of the DXM control board will bring the unit on in 2nd Stage Cooling. When the call is satisfied at the thermostat the unit will continue to run in 1st Stage Cooling until the 1st Stage Cooling call is removed or satisfied, shutting down the unit. NOTE: Not all units have two-stage cooling functionality.
Figure 2: ClimaDry Schematic Water Out (To Water Loop) Water In (From Water Loop) Refrigerant In (Cooling) Mixing Valve Internal Pump COAX Refrigerant Out (Cooling) Note: All components shown are internal to the heat pump unit. Leaving Air Entering Air Evaporator Coil ClimaDry Whole House Dehumidification - ClimateMaster Geothermal Heat Pumps - Rev.
Table 4: Tranquility 27™ Blower Performance Data Residential Units Only Airflow in CFM with wet coil and clean air filter Model 026 038 049 064 Max ESP (in. wg) Fan Motor (hp) Tap Setting Cooling Mode Dehumid Mode Heating Mode Fan AUX CFM Aux/ Emerg Mode Stg 1 Stg 2 Fan Stg 1 Stg 2 Fan Stg 1 Stg 2 0.50 1/2 4 810 950 475 630 740 475 920 1060 475 4 1060 0.50 1/2 3 725 850 425 560 660 425 825 950 425 3 950 0.
Table 5: Tranquility 20™ ECM Blower Performance Data Residential Units Only Airflow in CFM with wet coil and clean air filter Model 018 024 030 036 042 048 060 070 Max ESP (in. wg) 0.50 0.50 0.50 0.50 0.50 0.75 0.75 0.
Table 6: Tranquility 20™ (TS) Series PSC Blower Performance Data (Without ClimaDry) Model 018 024 030 036 042 048 060 070 Airflow (cfm) at External Static Pressure (in. wg) Fan Speed Rated Airflow Min CFM 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.
Table 7: ClimaDry Reheat Coil Pressure Drop - TS Units (PSC Motor) Coil Face Velocity FPM TSH/V/D with Reheat ESP Loss TSH/V/D 018 In. of Water TSH/V/D 024, 030 In. of Water TSH/V/D 036 In. of Water TSH/V/D 042, 048 In. of Water TSH/V/D 060, 070 In. of Water 200 0.037 0.033 0.031 0.028 0.026 250 0.052 0.046 0.042 0.038 0.034 300 0.077 0.066 0.059 0.051 0.044 350 0.113 0.096 0.085 0.073 0.061 400 0.181 0.160 0.145 0.131 0.117 450 0.242 0.226 0.215 0.205 0.194 500 0.
Tranquility 27™ with ClimaDry™ Electrical Wiring Diagram - 96B0037N74 12 ClimaDry Whole House Dehumidification - ClimateMaster Geothermal Heat Pumps - Rev.
Flushing/Purging Units with ClimaDry Units equipped with ClimaDry must be flushed/purged with a flush cart. Detailed general flushing /purging instruction can be found in the Flow Controller III IOM. The unit must be powered (but not operating) during flushing/purging. Unit power is required to operate the three-way modulating valve during flushing. When flushing/purging units equipped with ClimaDry the earth loop should be fully flushed/purged before attempting to flush/purge the heat pump.
Revision Log: Date Page # 18 April, 2008 All AIR CONDITIONING & REFRIGERATION INSTITUTE Description First Published ISO 9001:2000 Certified TM Quality: First & Always 35 Earl Martin Dr. Elmira, ON N3B 3L4 Phone: 800-367-9810 *97B0051N01* Fax: 877-684-3112 www.nextenergy.ca 97B0051N01 ClimateMaster works continually to improve its products. As a result, the design and specifications of each product at the time for order may be changed without notice and may not be as described herein.