Modular Chilling Equipment

Tandem Chillers manufactures modular chillers and related chilling equipment which fall into eight categories: (see Chiller Configuration Designation tables below).

Water Cooled Modular Chillers
Air Cooled Chillers
Condensing Units
Condenserless Air Cooled Chillers
Free Cooling Units
Remote Air Cooled Condensers
Air Cooled Dry Fluid Coolers
Pump Packages
Cooling Towers
Filtration and Strainer Systems

Water Cooled Chillers
If you have 70° F to 105° F building supply water (cooling tower water) to use for your condenser cooling, we offer high efficiency modular water cooled chillers. With our oversized brazed plate evaporators and condensers we offer some of the highest EERs available today.

Dry Glycol Fluid Cooled Chillers
If you do not have access to a building supply water between 70° F and 105° F to use for your condenser cooling, we offer modular glycol/water cooled chillers to be used with our high efficiency dry fluid coolers. These fluid coolers can be located on the roof or ground and are designed to operate in ambients as high as 115° F and up to a 50% ethylene glycol water solution for winter operation. We also supply temperature control valves, pump packages and expansion tanks to complete your system.

Remote Condenser Air Cooled Chillers
If you do not have access to building supply water (cooling tower water), and dry fluid coolers are not an option, we offer high efficiency modular remote air cooled condenser chillers to be used with our high efficiency air cooled condensers. These condensers can be located on the roof or ground and are designed to operate in ambients up to 105° F and down to –20° F during the winter months.

Remote Air Cooled Condensers
Our oversized air cooled condensers are designed for operating in the toughest conditions and temperature extremes. Our unique coil support system isolates the refrigerant tubes from the unit, tubes expand and contract without interference, preventing contact and friction wear. Designed to operate from 0 F (-17.7 C) with fan cycling and speed control of the first fan down to –30 F (34 C) ambient with flooded condenser incorporating a heated receiver and head pressure control valves to 105 F (40.5 C) summer ambient conditions. Corrosion resistant components insure long lasting operation. Unit comes with our exclusive 3-year limited warranty.

Dry Air Cooled Fluid Coolers
We use the same unique support system as the air cooled condenser and corrosion resistant components to insure long lasting operation. Fluid coolers are computer selected to reduce the fluid cooler pressure drop and maximize efficiency. Capacity control is achieved by fan cycling on the leaving fluid temperature. For winter conditions below 32 F (0 C) we recommend a 45% ethylene glycol solution be used to prevent freezing of the coil during winter months. Unit comes with our exclusive 3-year limited warranty.

Pumping Packages
We supply pump packages with horizontal or vertical pumps, 1750 or 3500 rpm TEFC motors, single or stand-by pumps with suction and discharge headers. Pump packages can be supplied pre-piped with all necessary shut-off valves, flow control valves, pressure gauges, thermometers, expansion tank, inlet strainers, temperature operated or motorized control valves and with a NEMA 1 or 12 control panel pre-wired to pump motors. Control panels are UL or CSA approved.

Table 1 - Chiller Configuration Designation

CHILLER CONFIGURATION
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A	030	S	Z	Z	A
Condenser	Capacity	Circuit	Compressor	Refrigerant	Voltage
A = Air Cooled	020 = 20 Tons	S = Single Circuit	R = Reciprocating	Z = R-22	A = 460/3/60
H = Heat Reclaim	030 = 30 Tons	D = Dual Circuit	S = Screw	Y = R-134A	B = 575/3/60
R = Remote Air-Cooled	050 = 50 Tons	a	T = Tandem Scrolls	X = R-404A	C = 208/3/60
W = Water Cooled	075 = 75 Tons	a	Z = Scroll	W = R-407C	D = 230/3/60
G = Glycol Cooled	090 = 90 Tons	a	a	V = R-410	F = 380/3/50
a	a	a	a	a	G = 415/3/50
a	a	a	a	a	J = 200/3/50
a	a	a	a	a	M = 380/415/3/50
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Table 2 - Control Configuration Designation

CONTROL CONFIGURATION
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M	H	2
Board	Type	Stages
M = Master	C = COMPRESSOR	1 = 1
S = Slave	U = CYLINDER	2 = 2
	H = HOT GAS	3 = 3
	S = SPECIAL	4 = 4
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Table 3 - Condenser Configuration Designation

CONDENSER CONFIGURATION
-
H
CONTROL	CONDENSER TYPE
T = T Stat F = Fan Speed H = Head Pressure	OPTION FOR ALL AIR - COOLED UNITS A = Packaged Air-cooled H = Heat Reclaim Air-cooled R = Remote Air-cooled
a	a
2 = 2 - Way 3 = 3 - Way	OPTION FOR ALL LIQUID-COOLED UNITS W = Water-Cooled G = Glycol-Cooled
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Contact us today:
Tel: 1.877.513.8330
Email: sales@tandemchillers.com

Tandem Chillers Inc.
111 Esna Park Drive, Unit 7
Markham, Ontario
L3R 1H2

Tel: 1.877.513.8330
Fax: 905.513.8358
Email: sales@tandemchillers.com