Heat Controller HTS SERIES manual Ground-LoopHeat Pump Applications, Type, 10F -12.2C, 15F -9.4C

T h e Q u a l i t y L e a d e r i n C o n d i t i o n i n g A i r

R e s i d e n t i a l S p l i t - 6 0 H z R 4 1 0 A

R e v. : 0 3 A u g u s t , 2 0 1 2

Ground-Loop Heat Pump Applications

Table 2: Approximate Fluid Volume (U.S. gal. [L]) per 100’ of Pipe

Fluid Volume (gal [liters] per 100’ [30 meters] Pipe)

Pipe	Size	Volume (gal) [liters]
	1”	4.1 [15.3]
Copper	1.25”	6.4 [23.8]
	2.5”	9.2 [34.3]
Rubber Hose	1”	3.9 [14.6]
	3/4” IPS SDR11	2.8 [10.4]
	1” IPS SDR11	4.5 [16.7]
	1.25” IPS SDR11	8.0 [29,8]
Polyethylene	1.5” IPS SDR11	10.9	[40.7]
	2” IPS SDR11	18.0	[67.0]
	1.25” IPS SCH40	8.3 [30.9}
	1.5” IPS SCH40	10.9	[40.7]
	2” IPS SCH40	17.0	[63.4]
Unit Heat	Typical	1.0	[3.8]
Exchanger
Flush Cart Tank	10” Dia x 3ft tall	10 [37.9]
	[254mm x 91.4cm tall]

Figure 4: Loop Connection (Indoor Compressor Section)

To Loop

Flow

Controller

Unit Power

Disconnect

Insulated

Hose Kit

AH & Thermostat Wiring

Air Pad or Extruded polystyrene insulation board

P/T Plugs

NOTICE! Cabinet opening around loop piping (outdoor compressor section) must be sealed to prevent entry of rodents that could potentially damage unit wiring by chewing on the insulation.

Table 3: Antifreeze Percentages by Volume

Type	Minimum Temperature for Low Temperature Protection
	10°F [-12.2°C]	15°F [-9.4°C]	20°F [-6.7°C]	25°F [-3.9°C]
Methanol	25%	21%	16%	10%
100% USP food grade Propylene Glycol	38%	25%	22%	15%
Ethanol*	29%	25%	20%	14%

* Must not be denatured with any petroleum based product

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