Danfoss LLZ013-015-018, LLZ024-033 Installation guide

Instructions LLZ compressors

A: Model number B: Serial Number

C: Technical number D: Manufacturing year E: Internal protection

F: Supply voltage range G: Locked rotor current

Maximum operating current

H: Lubricant type and nominal charge I: Approved Refrigerant

Installation and servicing of the compressor by qualified personnel only. Follow these instructions and

sound refrigeration engineering practice relating to installation, commissioning, maintenance and service.

A F

BG

CH I

D

E

Operating limits										Electrical connections	Threephase(Wiringdiagramwithpump-downcycle)
		LLZ - R404A / R507 - Standard									CONTROL CIRCUIT					L1	L3	L2
<![if ! IE]> <![endif]>(°C)	65									C
										T
	60																	Q1
<![if ! IE]> <![endif]>temperature															KA	KS
	40
	55
	50									S	F1	F1
	45									T								KM
<![if ! IE]> <![endif]>discharge	35			20K superheat								KM	KA	KA
										R
	30
										T					PM
	25
<![if ! IE]> <![endif]>Saturated	20														180 s	HPs
	5
	15														A1
																T1		T2
	10												KS		A3
	-45	-40	-35	-30 -25 -20			-15	-10	-5	Ring connect screw terminals					A2			T3
			Saturated suction temperature (°C)
	LLZ - R404A / R507 - Economizer cycle									C terminal box type			LP		TH
<![if ! IE]> <![endif]>(°C)	65
	60									push
<![if ! IE]> <![endif]>temperature	55														KS			M
																DGT
	50
	45												KM	KA	LLSV	KS
	40
<![if ! IE]> <![endif]>discharge				18.3°C suction gas temperature
	25											Wiring diagram with pump-down cycle
	35
	30										pu
<![if ! IE]> <![endif]>Saturated
	10
	20
	15
	5
	-45	-40	-35	-30	-25	-20	-15	-10	-5	push
			Saturated suction temperature (°C)

The compressor must only be	Never operate	The	compressor	is	delivered
used for its designed purpose(s)		under	nitrogen	gas	pressure
and within its scope of applica-	compressor without	(between 0.3 and 0.4 bar / 4 and
tion (refer to «operating limits»).	terminal box cover	6 psi). Do not disassemble bolts,
Consult Application guidelines	in place and secured.	plugs,	fittings,	etc...	unless
and datasheet available from		all pressure has been relieved
cc.danfoss.com		from the compressor.

Under all circumstances,	The	compressor
the EN378 (or other appli-	must	be	handled
cable local safety regulation)	with caution in the
requirements must be ful-	vertical		position
filled.	(maximum		offset
Wear protective goggles and	from	the vertical :
work gloves.	15°).

	1 – Introduction			3 – Safety measures before assembly		with the rubber grommets supplied with the
	These instructions pertain to the LLZ scroll			Never use the compressor in a flammable		compressor.
	compressors used for refrigeration systems. They			atmosphere.
						4 – Assembly
	provide necessary information regarding safety and			• Mount the compressor on a horizontal flat
	proper usage of this product.			surface with less than 7° slope.		• Slowly release the nitrogen holding charge
				• Verify that the power supply corresponds to the		through discharge and suction ports.
	2 – Handling and storage
				compressormotorcharacteristics(seenameplate).		• Connect the compressor to the system as
	• Handle the compressor with care. Use the			• When installing a compressor for R404A,R507or		soon as possible to avoid oil contamination
	dedicated handles in the packaging. Use the			R407A, use equipment specifically reserved for		from ambient moisture.
	compressor lifting lug and use appropriate			HFC refrigerants which was never used for CFC		• Avoid material entering into the system while
	and safe lifting equipment.			or HCFC refrigerants.		cutting tubes. Never drill holes where burrs
	• Store and transport the compressor in an			• Use clean and dehydrated refrigeration-grade		cannot be removed.
	upright position.			copper tubes and silver alloy brazing material.		• Do not exceed the maximum tightening
	• Store the compressor between -35°C and 70°C /			• Use clean and dehydrated system components.		torque for rotolock connections
	-31°F and 158°F.			• The piping connected to the compressor
						Rotolock connections	Tightening torque
	• Don’t expose the compressor	and the		must be flexible in 3 dimensions to dampen		1” Rotolock	80 Nm
						1” 1/4 Rotolock	90 Nm
	packaging to rain or corrosive atmosphere.			vibrations.
						1” 3/4 Rotolock	110 Nm
				• The compressor must always be mounted
	1	FRCC.EI.028.A3.02 © Danfoss Commercial Compressors 05/13