RESERATOR 1 - PC Fan ZALMAN - Free user manual and instructions

Product Type	Fanless Water Cooling System (Reserator)
Model	RESERATOR 1
Brand	Zalman
Dimensions (Reserator)	150 x 150 x 592 mm (L x W x H)
Weight (Reserator)	6.5 kg
Weight (CPU Water Block)	447 g
Heat Dissipation Area	1.274 m²
Coolant Capacity	2.5 L maximum
Integrated Water Pump	5 W, Qmax 300 l/h, Max lift 0.5 m (Voltage versions: 110-230 V, 50/60 Hz)
Reserator Material	Anodized Pure Aluminum
CPU Water Block Material	Pure Aluminum Cover, Gold-Plated Pure Copper Base
CPU Socket Compatibility	Intel Socket 478; AMD Socket 462, 754, 940
Flow Indicator	In-line component to visually check coolant circulation
Noise Level	Fanless operation, noiseless
Recommended Coolant	Distilled or tap water
Installation Orientation	Upright, on a flat surface, at same level or slightly above PC
Safety Features	Leak inspection, overheat protection, air bubble removal procedure
Optional Accessories	GPU water block, additional ZM-WB2 Gold, silicone tube, heatpipe HDD cooler, power supply unit
Spare Parts Included	Sealing Bolt B, Cable Fitting, Compression Fitting, O-Ring B
Warranty	Refer to distributor

Frequently Asked Questions - RESERATOR 1 ZALMAN

How do I install the CPU water block (ZM-WB2 Gold)?

Refer to the separate ZM-WB2 Gold manual. It supports Intel Socket 478 and AMD Socket 462, 754, 940. Ensure compatibility before installation.

What coolant should I use and how much?

Use distilled or tap water. Fill the Reserator to 80-90% of its height. Maximum capacity is 2.5 liters. Avoid contaminants.

How do I check if the coolant is circulating?

Observe the Flow Indicator installed in the tube. If the coolant is circulating, the cap inside vibrates rapidly.

What should I do if the coolant isn’t circulating?

Check pump power, ensure Reserator is at same height or slightly above PC, verify tube direction (OUT to CPU, CPU to IN), and remove air bubbles by turning pump on/off repeatedly at 10-second intervals while shaking tubes.

How do I fix a leak at a fitting?

Turn off the system immediately. Make sure the silicone tube is fully inserted into the fitting socket, cut squarely, and the fitting cap is screwed all the way. Replace damaged components.

Can I use an external water pump?

Yes, if the integrated pump fails or you need higher capacity. Follow the manual to disconnect the integrated pump and install an external pump. Ensure compatibility with silicone tube (13x10 mm or 12x8 mm). Zalman is not responsible for issues from external pumps.

How do I move the Reserator or change the coolant?

Turn off PC, clamp the silicone tubes on both sides of the universal fitting, unscrew fitting caps outside the case, then move or drain coolant. Keep water block higher than coolant level to avoid spills.

How often should I replace the coolant?

Check coolant level regularly. Replace if contaminated or after long periods of disuse. No specific interval given, but distilled water can last months if system is sealed.

What CPUs are compatible with the RESERATOR 1?

Intel Pentium 4 (Socket 478), AMD Athlon/Duron/Athlon XP (Socket 462), AMD AMD64 (Socket 754/940). Always check CPU socket compatibility.

What are the dimensions and weight of the Reserator?

Dimensions: 150 x 150 x 592 mm (L x W x H). Weight: 6.5 kg. The CPU water block weighs 447 g.

USER MANUAL RESERATOR 1 ZALMAN

Visit our website (www.zalman.co.kr) and watch the RESERATOR 1 installation video to facilitate the installation process.

※ Please read this manual thoroughly before installation.
※ The specifications of this product and its components may change without prior notice to improve the performance thereof.

Cautions & Warnings

When Installing

1. Make sure that the power source's output voltage and frequency are compatible with the power input requirements of the water pump before installing. (Input voltage and frequency of the water pump can be located on the box and sink cover.)
2. Do not place in dusty or humid conditions, under direct sunlight, or near a heat source such as a room heater.
3. Do not drop or subject to excessive force.
4. Check CPU socket compatibility first.
5. Familiarize yourself with this manual.
6. Do not mix any contaminant with the coolant when filling, for it may cause product failure.
7. Use of a multiple-outlet power strip is recommended, for you can connect or disconnect power to the PC and the Reserator 1's pump simultaneously.

When in Use

1. Always turn on the water pump first before using the system.
2. If the coolant isn't circulating or the pump is making a strange noise, turn off the pc system immediately.
3. Do not place any object on the product.
4. Install on a flat surface with no vibration or slant; do not tilt or lay horizontally.
5. Use distilled or tap water for coolant, regularly check the amount of coolant, and replenish as needed.
6. If a leak is found, turn off the system immediately and examine the problem before using the system again.
7. If the system will not be used for an extended period of time, turn off the water pump.
8. When moving the system, separate the reserator from the PC case before moving.
9. Make sure to not let any air bubbles into the Water Block and tubes while in use.
10. Always check that the water pump is properly functioning.

Contents

Cautions & Warnings

Contents

1. Features 3
2. Specifications 4
3. Installation View 5
4. Components 6
5. Installation 8
6. Installing External Water Pump 14
7. Separate Reserator and Water Block 17
8. FAQ 20
9. Exploded View 21

Zalman Noise Prevention System

1. Features

Reserator 1 is designed with an optimal heat dissipation area based on Zalman Tech's HCET (High Capacity Extrusion Technique) and high efficiency cooling technology. As a result, this product achieves excellent cooling performance even with natural convection, making it the world's first fanless, noiseless water-cooling system. The reservoir, radiator, and the water pump are conveniently integrated into one assembly, and the heatsink is anodized to prevent corrosion and rust. In addition, the kit includes the high-performance ZM-WB2 Gold water block which is not susceptible to galvanic corrosion.

1.1 Reserator (Reservoir + Radiator + Water Pump)

Reserator is a compound word derived from ‘Reservoir’ and ‘Radiator’- it acts as a reservoir while radiating heat. This product works well with natural convection and integrates a water pump inside for convenience.

1.2 CPU Water Block(ZM-WB2 Gold)

The system includes Zalman's new CPU cooling component, ZM-WB2 Gold, which performs superbly and installs easily.

1.3 Flow Indicator

This component is connected in-line with the circulation tube to check the circulation of the coolant. When the coolant is actively circulating, the cap inside the flow indicator shakes rapidly, providing easy indication of the circulation status.

Technical line drawing of a cylindrical mechanical component with radial fins and base (no text or symbols)

2. Specifications

2.1 Reserator (Reservoir + Radiator + Water Pump)

Dissipation Area : 1.274 m²

Weight : 6.5kg

Dimensions : 150(L) x 150(W) x 592(H) mm

Material : Anodized Pure Aluminum

Coolant Capacity : 2.5 l Maximum

Integrated Water Pump : 5 W, Qmax 300 l/h(A type : 220 V-60 Hz, B type : 230 V-50 Hz, C type : 120 V-60 Hz, D type : 110 V-60 Hz)

Maximum Lift : 0.5 m

2.2 CPU Water Block(ZM-WB2 Gold)

Weight : 447g

Material : Pure Aluminum Cover, Gold-Plated Pure Copper Base

Dimensions : 64 x 31mm

Compatibility : Intel Pentium 4 (Socket 478), AMD Athlon / Duron / Athlon XP (Socket 462),

AMD AMD64 (Athlon 64 / Athlon 64 FX / Opteron) (Socket 754 / 940)

3. Installation View

4. Components

4.1 Reserator 1 Main Assembly 1SET

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4. 2 CPU Water Block (ZM-WB2 Gold) 1SET

Please refer to the separately provided manual for the ZM-WB2 Gold.

Technical line drawing of a cylindrical electronic component with two hexagonal nuts and a central hole (no text or symbols)

4.3 Flow Indicator 1EA

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4.4 Universal Fitting 2EA

4.5 Silicone Tube 1SET

Silicone Tube 1SET

Clamp 4EA

4.6 Spare parts

Sealing Bolt B 1EA Cable Fitting 1EA

Compression Fitting 1EA O-Ring B 1EA

Options

- GPU Water Block

Water block for cooling the GPU on a graphics card. This product is sold separately and available in two versions for compatibility with ATI Radeon and NVIDIA GeForce GPUs.

- ZM-WB2 Gold

Dual CPU users can buy an additional unit of ZM-WB2 Gold for installation on the second CPU.

- Silicone Tube

If the included silicone tube is found to be short or you need to use the tube on another system, additional tubes can be bought separately (base length is 3 m, 12 x 8 mm).

- Heatpipe HDD Cooler

This component cools the heat generated from the hard disk drive and reduces the vibration that is passed on to the system case.

• Power Supply Unit

By implementing heat-sensor circuitry that controls the cooling fan's speed in relation to the temperature within the power supply, emanating noise has been greatly reduced, making this component suitable for noiseless systems.

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Technical illustration of a cylindrical electronic component with two protruding pins (no text or symbols)

Simple line drawing of concentric circular layers with a small oval cutout at the center (no text or symbols)

Isometric line drawing of a heat exchanger or cooling unit (no text or symbols)

Black power supply unit with cooling fan and cable (no visible text or symbols)

5. Installation

5.1 Determine the Placement of the Reserator 1

The reserator's placement should be determined with regard to the connected PC. Place it upright next to or slightly above the PC. Note that if the Reserator is placed lower than the PC, the silicone tube's internal air pressure may prevent proper initial operation.

Simple line drawing of a desktop computer setup with monitor, tower, and keyboard (no text or symbols)

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Simple line drawing of a desktop computer setup with monitor, tower, and tower tower (no text or symbols)

(0)

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(X)(X)(X)

Simple line drawing of a desktop computer setup with monitor, tower, and tower tower (no text or symbols)

Line drawing of a desktop computer setup with monitor, tower, and server (no text or symbols)

5.2 Install the CPU Water Block (ZM-WB2 Gold)

1) Refer to the manual included with ZM-WB2 Gold on how to install.
2) ZM-WB2 Gold can be installed on Socket 478, 462, 754, and 940.
3) If a water block from another manufacturer is to be installed, refer to the manual included with that product on how to install.
4) If interference occurs while installing, stop the installation.
5) Only 13 x 10 mm or 12 x 8 mm silicone tubes can be used with this product.

Technical line drawing of a mechanical assembly with springs and housing (no text or symbols)

Intel Pentium 4 Socket 478 CPU

Mechanical assembly diagram showing a coiled spring with two cylindrical components and mounting tabs (no text or labels)

AMD Athlon/Duron/Athlon XP Socket 462 CPU

Technical illustration of a mechanical or electrical component with coiled spring and mounting flanges (no text or symbols)

AMD AMD64(Athlon 64/Athlon 64 FX/Opteron) Socket 754/940 CPU

5.3 Connect the CPU Water Block with the Universal Fitting

Use the silicone tubes to connect the CPU water block with the universal fitting. Be careful with the tubes so that they are not twisted and not too long to interfere with other components.

If a GPU water block is installed, connect the CPU water block's exit hole with the GPU water block.

5.4 Fasten the Universal Fitting

If the universal fitting is to be fastened on the PCI slot hole in the back of the case, separate the fitting cap and the fitting nut from the universal fitting. Then, insert the universal fitting into the PCI slot hole from the inside towards the outside as shown and fasten with fitting nuts.

If you want to drill the holes in the side of the case for fastening, each of them should be 16 mm in diameter. The tube holes should be made at the same height as the slot holes at the back of the case.

5.5 Connect the Reserator with the Universal Fitting

Using silicone tubes, connect the IN / OUT compressing fittings, the flow indicator, and the universal fitting as shown above. The flow indicator is used to check the circulation of the coolant, so it should be placed where it is easily visible.

Note) The flow indicator must be installed in the direction shown.

Connecting Fitting and Silicone Tube - The Easy Way

1) Slide the Fitting Cap over the silicone tube
2) Push the silicone tube all the way inside the Fitting socket.
3) Screw on the Fitting Cap until it is completely fastened.
4) Pull the silicone tube slightly with your hands to see if it is loose. Cut about 100 mm of the silicone tube and use it around the Fitting Cap to fasten the cap easily. Be careful not to have the silicone tube fold or twist, as scratches and damage may lead to leaks.

5.6 Confirm Correct Installation

1) Check that the placement of the product confirms to section 5.1.
2) Confirm that the coolant circulation path is correct, as shown below.

graph TD
    A["Reserator OUT Flow Indicator"] --> B["CPU Water Block"]
    B --> C["GPU Water Block"]
    C --> D["Reserator IN"]
    D --> E["Reserator"]
    E --> F["Integrated Water Pump"]
    F --> A
    G["Absorb Heat"] --> B
    H["Radiate Heat"] --> E

3) Lightly tug the silicone tube connected to each of the Compression Fittings and the Universal Fitting to check for loose ends.

5.7 Add Coolant

1) Take off the Reserator's cover.
2) Fill the Reserator to 80\~90% of its height. Distilled water is recommended, but tap water can be used instead.
Reserator 1's maximum capacity is 2.5 liters. When adding the coolant, make sure that no contaminant is introduced.

What is a Coolant?

Coolant refers to a circulating fluid that absorbs heat from heat sources such as a CPU and a GPU, and dissipates it at the radiator. Typically recommended coolant used in a water cooling system is distilled water, but tap water can also be used. To prevent galvanic corrosion, special coolants such as antifreeze are sometimes used. (Zalman's ZM-WB2 Gold is gold-plated, so galvanic corrosion does not occur.)

5.8 Leakage Inspection and Test Run

OFF ON

1) Turn off the PC's power completely before starting leakage inspection.
2) Confirm that the coolant is adequately filled. It should be filled to about 80\~90% of the Reserator's capacity.
3) Check each fitting for leaks. If there is a leak, circuitry and other components may short circuit and malfunction, so be careful.
4) Only if there is no leak in any of the fittings and the Fitting Sockets, turn on the water pump. If the coolant does not circulate properly, turn the pump on and off repeatedly to eliminate air bubbles.
5) While the pump is turned on, check the circulation status with the flow indicator. If the coolant is circulating well, the cap inside the flow indicator vibrates rapidly.
6) Leave on for an hour and check for leaks.
7) If there are no leaks, turn on the PC's power and use the system.

6. Installing the External Water Pump

If the integrated water pump is broken or you need a water pump of higher capacity, you can install an external water pump as shown below.

6.1 Separate the Integrated Water Pump

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Three-step diagram showing screwdriver installation steps: adding, holding a component, and disassembly into a circuit board (no text or symbols)

1) Separate the sink base - take off the sink base from the product as shown.

2) Unscrew the fixing bolts on the water pump - Separate the fixing plate and the fixing bolts by unscrewing the fixing bolts on the sink base with a screwdriver.
3) Detach the water pump power switch - separate the power switch from the power cable.
4) Take off the Sealing Bolt A - separate the Sealing Bolt A from the sink base.

5) Take out the power cable - pull the water pump power cable out through the cable hole.

6) Remove the cable fitting - take the cable fitting out of the hole as shown by using a screwdriver or an awl.

7) Remove the integrated water pump - pull the water pump off the sink base as shown.

8) Put on the Sealing Bolt B - after removing the cable fitting, screw on the Sealing Bolt B. Fasten until tight. If this is not done properly it may cause leakage.

9) Reassemble the sink base - after all the steps are taken, reattach the sink base to the main body firmly. Take proper care in doing this as leakage may result if not done correctly.

6.2 Install the External Water Pump

After determining the placement of the external water pump, check the components that create a path as shown above. It is recommended that the installation is done in such a manner.

6.3 Cautions on Choosing and Installing an External Water Pump

1) When installing an external water pump, confirm the coolant entrance and exit holes before connection.
2) Check that the chosen water pump's holes are compatible with the provided silicone tube.
3) Zalman Tech is not responsible for performance degradation or malfunction of a system that arises from using an external water pump.

7. Separate the Reserator and Water Block

When moving this product to another location, or replacing the coolant or the water block, separate the Reserator and the water block from the silicone tubes as shown below.

7.1 Moving the Reserator or Changing the Coolant

1) Turn off the PC's power.
2) Using the tube clamps, as shown in the diagram, insert the tubes in to both sides of the Universal Fitting. If the press clip isn't properly tightened, there may be leaks, so make sure that the silicone tube is placed in the middle of the clamp.
3) Turn clamp screw until it is tight.
4) Unscrew the Universal Fitting Caps on the outside of the case one by one. If you unscrew the Fitting Socket Caps inside the case, residual coolant may spill into the case.

Technical line drawing of a cylindrical industrial component connected to a flexible hose and valve (no text or symbols)

5) Move the Reserator or change the coolant inside.

7.2 Replacing the CPU Water Block

1) Turn off the PC's power.

2) Separate the CPU water block from the mainboard.

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3) To let the residual coolant flow back to the Reserator, place the CPU water block higher than the coolant level of the Reserator.
4) Fasten the Clamp on the entrance and the exit tubes of the CPU water block.
5) Unscrew the Fitting Caps from the CPU water block. Residual coolant inside the tube and the water block may flow out, so clean up using a paper towel or a piece of cloth.
6) Replace the CPU water block.

8. FAQ

8.1 When the Coolant isn't Circulating

(1) Check that the water pump is connected to the power.
(2) Verify that the pump is properly functioning. Remove the Reserator's sink cover and look inside to see if there is movement in the coolant. If there is none, contact the distributor where you purchased the product.
(3) Make sure that the Reserator is installed correctly. It must be placed at the same level as the PC, or slightly higher.
(4) Check if the coolant is flowing in the right direction.
(5) Inspect for any twists or folds in the silicone tubes of the system.
(6) Durning initial operation, the coolant may not properly circulate due to internal air pressure. In this case, repeatedly turn the water pump on and off at a 10-second interval and shake the silicone tubes to help get the air bubbles out. Once they are out of the system the coolant should be circulating properly.

8.2 When There is a Leak at a Compression Fitting or Universal Fitting Socket

(1) Turn off the system.
(2) Make sure the silicone tube is pushed all the way into the end of the Fitting Socket.
(3) Check to see that the tube is cut cleanly and squarely.
(4) Verify that the Fitting Cap has been screwed all the way into the end of the fitting Socket.

9. Exploded View

Zalman Noise Prevention System

When building a noiseless computer, use Zalman's Noiseless Power Supply, Northbridge Cooler, Case Fan, Video Card Cooler, and HDD Cooler to achieve stable performance and maintain a noiseless environment.

Power Supply ZM400A-APF

3D rendering of a mechanical component with vertical fins and mounting brackets (no text or symbols)

Northbridge Cooler ZM-NB47J

Black CPU fan with visible cooling fins and mounting holes (no text or symbols)

Noiseless Fan

Close-up of a computer motherboard showing heatsink and cooling elements (no text or symbols visible)

VGA Cooler ZM80C-HP

Metallic heat exchanger or cooling unit with multiple parallel cooling fins (no text or symbols visible)

HDDCooler ZM-2HC2